Topic:"Net To Gross Evaluation" in M04819

Responsibility and accountability for the administration of DSM programs were transferred from Nova Scotia Power Inc. (NSPI) to ENSC effective October 1, 2010, with transfer of operational activities phased in during the fall of 2010. The...

AI summary Responsibility for DSM programs was transferred from NSPI to ENSC in 2010. ENSC submitted its first DSM Plan in 2011, which was approved by the UARB. ENSC also filed several reports and methodologies in response to UARB orders, including a free ridership and spillover study.

ration 2011 Evaluation Report 4 IMPACT EVALUATION 4.1 OBJECTIVE AND APPROACH OF THE IMPACT EVALUATION The impact evaluation is aimed at determining the gross and net savings of the ARep program for 2011. Both energy and demand savings were...

AI summary The 2011 impact evaluation of the Appliance Replacement Program (AREP) assessed energy and demand savings. Econoler reviewed unitary savings and conducted on-site visits to validate installations and refrigerator characteristics. The net-to-gross ratio (NTGR) was assumed to be 1 due to insufficient participant numbers for a telephone survey.

s that affect the interactive effects, Econoler concludes that the interactive effects for the ARep program are insignificant. Indeed, Econoler took into account the following factors in its analysis: > Within the framework of this evaluat...

AI summary The analysis concludes that interactive effects from the Appliance Replacement Program (AREP) are insignificant due to factors such as low electricity use for heating, air conditioning prevalence, and refrigerator placement. The Net-to-Gross Ratio (NTGR) is calculated using a self-report method involving telephone surveys to assess program distortions like free-ridership.

ternal spillover. 8 From the 2011 socket study conducted by CRA with 1,004 households of Nova Scotia. 9 Statistics Canada (CANSIM), Households having air conditioning, Nova Scotia, 2009. Ref.: 5725 20 Efficient Products – Appliance Replace...

AI summary The ARep program's 2011 evaluation report estimates net energy and demand savings, using a net-to-gross ratio (NTGR) of 1 and assuming no interactive effects. The total net energy savings are 0.497 GWh at the meter and 0.548 GWh at the generator, with corresponding demand savings of 0.059 MW and 0.065 MW.

Generator Generator Total Gross Savings 0.497 0.548 0.059 0.065 Interactive Effects Factor 0% 0% 0% 0% NTGR 1.00 1.00 1.00 1.00 Total Net Savings 0.497 0.548 0.059 0.065 Ref.: 5725 21 Efficient Products – Appliance Replacement Program Effi...

AI summary The document compares tracked and evaluated savings from the Appliance Replacement Program by Efficiency Nova Scotia Corporation. It shows higher energy and demand savings from the evaluation compared to tracked data, with the Net-to-Gross Ratio (NTGR) at 1.00 for the evaluation results.

Demand Savings Tracked Savings from ENSC 0.043 MW 0.74 0.032 MW Evaluation Results 0.065 MW 1.00 0.065 MW The net evaluated savings more than doubled with relation to the net evaluated savings tracked by ENSC. This result is mainly due to...

AI summary The evaluation of the Appliance Replacement Program (ARET) by Efficiency Nova Scotia Corporation (ENSC) showed that net evaluated savings more than doubled compared to tracked savings, primarily due to an updated unitary savings value for refrigerators. The evaluation also considered installation rates, interactive effects, and the net-to-gross ratio (NTGR), concluding that free-ridership and spillover effects were negligible due to low participation.

he program in general and most of its aspects such as their relationship with the DA, the amounts of the discounts, discount processing as well as discount tracking and reporting. Residual Potential Survey results demonstrated that the ins...

AI summary The document discusses the program's aspects, including its relationship with the DA, discount processing, and tracking. It highlights residual potential for CFL installation despite high adoption rates and outlines the methodology used to evaluate program energy savings, including NTGR calculations for various products.

urvey. Another reason explaining the NTGR of 1 lies in the fact that these products are grouped into too large retail categories to allow retailers to estimate the program influence on their sales. Ref.: 5725 viii Efficient Products – Reta...

AI summary The evaluation of the Retail Markdown Program (RMP) found that it generated significant energy and demand savings in 2011, but noted that the Net-to-Gross Ratio (NTGR) of 1 for some products was due to grouping into large retail categories, making it difficult for retailers to estimate program influence on sales.

Efficiency Nova Scotia Corporation 2011 Evaluation Report Since outdoor motion sensors and heavy duty timers are installed outdoors, no interactive effects factor is calculated on these devices. For all other products, interactive effects...

AI summary The evaluation report discusses the lack of interactive effects for outdoor motion sensors and heavy duty timers, and explains why interactive effects are not considered for ENERGY STAR refrigerators in Nova Scotia. It also outlines two approaches used to calculate the net-to-gross ratio for the RMP: a self-report approach via telephone surveys and an interview-based approach with retailers.

he markdown periods. For refrigerators and clothes washers, these sales correspond respectively to 30 and 32 percent of the eligible appliances purchased by participants during the markdown periods. Ref.: 5725 56 Efficient Products – Retai...

AI summary The evaluation report discusses the Retail Markdown Program's impact on appliance sales and market effects, particularly for CFLs, refrigerators, and clothes washers. It highlights challenges in measuring spillover effects and suggests increasing retailer interviews for better data collection.

ing from the assessment of free-ridership and spillover for regular CFLs, refrigerators and clothes washers are summarized below. Table 43: Net-to-Gross Ratio Free-Ridership Spillover NTGR Regular CFLs 78% 31% 0.53 CEE Tier 3 Refrigerators...

AI summary The document discusses net-to-gross ratios (NTGR) and net energy savings calculations for various products, including regular CFLs, CEE Tier 3 refrigerators, and clothes washers. It highlights the impact of free-ridership and spillover effects on energy savings, with overall net energy savings estimated at 12.490 GWh and 1.257 MW at the meter.

ter Line loss factor 1.1050 1.1050 1.1050 1.1050 1.1050 1.1050 1.1050 1.1050 1.1050 1.1050 1.1050 Total Net Energy Savings 4.468 2.976 0.064 0.202 0.015 0.003 0.012 1.971 1.888 0.350 1.853 (GWh) – at Generator Demand Savings Total gross de...

AI summary The text presents data on energy savings, including total net energy savings and demand savings at different points (generator and meter), along with factors like line loss and NTGR. It notes that some savings calculations combine multiple initiatives, such as CFLs, refrigerators, and the Air Miles pilot project, with specific NTGR values applied.

oject, as well as from specialty CFLs given away during in-store events, were calculated together. However, for the Air Miles pilot project, a NTGR of 1 was used in the net savings calculation. Ref.: 5725 58 Efficient Products – Retail Mar...

AI summary The document compares tracked and evaluated energy and demand savings from the Retail Markdown Program (RMP) in 2011. The evaluation results show higher initial gross savings but lower net savings after accounting for NTGR (Net Total Gross Reduction) factors compared to the tracked savings.

GS The 2007-2011 evaluation of the program demonstrated good results. Since 2007, the program has handed out a total of 46,399 LED holiday light sets and has generated net energy savings of 1.447 GWh. To calculate the net savings of the pr...

AI summary The LHLE program, which distributed 46,399 LED holiday light sets from 2007 to 2011, achieved net energy savings of 1.447 GWh and demand savings of 3.618 MW. The evaluation assumed a net-to-gross ratio of 1, as free-ridership and spillover effects were not measured.

g – outdoor seasonal LED lights 67% × 40% = 26.8% 0% Weighted Interactive Effects Factor 100% -19.8% 9 ENSC from socket study. Ref.: 5725 7 LED Holiday Lighting Exchange Program Efficiency Nova Scotia Corporation 2007 to 2011 Impact Evalua...

AI summary The LED Holiday Lighting Exchange Program's impact evaluation report discusses the Net-to-Gross Ratio (NTGR) and net savings from 2007 to 2011. The program assumes an NTGR of 1 due to negligible distortion effects and calculates net savings based on interactive effects, resulting in total energy and demand savings.

Efficiency Nova Scotia Corporation 2007 to 2011 Impact Evaluation Report As shown below, the gross and net savings resulting from this evaluation were compared to the gross and net savings estimates from the 2011 tracking sheet. Table 7: C...

AI summary This report compares tracked and evaluated energy and demand savings from 2007 to 2011. Evaluated savings are lower than tracked savings due to the inclusion of interactive effects, particularly from the LED Holiday Lighting Exchange (LHLE) program, which reduced savings by 19.8%.

em did remove certain products that had been installed through the program. On-site visits revealed that for 11 of the 15 sites visited, at least one product had been removed. Program Energy Savings To calculate the net savings of the LIR...

AI summary The evaluation of the LIR program in 2011 found that some products installed through the program had been removed from 11 out of 15 sites visited. Econoler calculated net energy and demand savings, assuming a net-to-gross ratio of 1 due to minimal distortion effects, resulting in 4.809 GWh of energy savings and 1.078 MW of demand savings.

istics Canada. 21 RETScreen International, Normalized climate data for Halifax International Airport, Natural Resources Canada, 1997-2010. 22 From DA information and Statistics Canada. Ref.: 5725 36 Efficient Products – Low Income Renter P...

AI summary The LIR program provides free energy-efficient product installations for low-income renters. The net-to-gross ratio (NTGR) is assumed to be 1 due to minimal distortion effects. Net savings are calculated using interactive effects for each product category, resulting in total energy and demand savings of 4.335 GWh and 0.976 MW at the meter, and 4.809 GWh and 1.078 MW at the generator.

r is the component of the power bar responsible for the energy savings generated. This observation has resulted in a low installation rate for power bars with integrated timer. Program Energy Savings To calculate the net savings of the MUR...

AI summary The MURR program's energy savings were evaluated, revealing a 17% free-ridership level and a net-to-gross ratio of 0.83 in 2011. The evaluation considered installation rates, interactive effects, and participant intentions, showing that most participants would not have installed energy-efficient products without the program.

Period Period Electric heating with air conditioning 33% × 18% = 5.9% -100% × 8/12 = -67% +100% × 2/12 = +17% Electric heating without air conditioning 33% × 82% = 27.1% -100% × 8/12 = -67% 0% × 2/12 = 0% No electric heating with air condi...

AI summary This section discusses the Net-to-Gross Ratio in the context of the Efficient Products – Multi-Unit Residential Renter Program, part of an evaluation report by Efficiency Nova Scotia Corporation from 2011. It provides calculations related to energy use and efficiency factors, highlighting weighted interactive effects.

Efficiency Nova Scotia Corporation 2011 Evaluation Report 4.4 NET-TO-GROSS RATIO The net-to-gross ratio (NTGR) is based on a self-report approach which relies on a series of questions designed to measure the influence of the program on mul...

AI summary This section discusses the net-to-gross ratio (NTGR) methodology used in the 2011 Evaluation Report for the MURR program. It explains how the NTGR is calculated using self-reported data from multi-unit renters, including the assessment of free-ridership and spillover effects.

Efficiency Nova Scotia Corporation 2011 Evaluation Report Only one participant declared having purchased additional energy-efficient products following his previous participation in the program. More precisely, the participant declared hav...

AI summary The 2011 Evaluation Report for Efficiency Nova Scotia Corporation indicates that the MURR program had minimal internal spillover, with only one participant reporting additional energy-efficient product purchases influenced by the program. The NTGR value of 0.83 is applied to the program and two additional pilot projects due to their similarities.

pilot projects present several similarities with the MURR program; i.e., the typical energy-efficient products installed, the direct install approach and the targeted customers. 4.5 NET SAVINGS Net energy savings are estimated by adding th...

AI summary The document discusses the similarities between pilot projects and the MURR program, focusing on energy-efficient product installations, direct install approaches, and targeted customers. It outlines the calculation of net energy and demand savings using an equation incorporating gross energy savings, interactive effects, and the net-to-gross ratio (NTGR).

Power 13 Watt 23 Watt 23 Watt CFL LED Programmable Electric Faucet Low-Flow Pipe Hot Water Product Category CFLs CFLs Torchieres Nightlights Thermostats Kettles Aerators Showerheads Bars with Insulation Tank Wraps Timer Energy Savings Tota...

AI summary The document presents energy savings data for various power products, including CFLs, LEDs, and thermostats, along with interactive effects and net-to-gross ratios (NTGR). The data shows total gross and net energy savings at the meter and generator levels, as well as demand savings across different product categories.

on results were 6 percent higher than what was estimated by ENSC. The difference between the tracked and evaluated savings can be explained by the revision or the addition of the following parameters: > Unitary savings values: For several...

AI summary The evaluation of energy savings showed 6% higher results than ENSC's estimates, due to revised unitary savings values, inclusion of interactive effects factors, and a slight difference in NTGR. Adjustments were made for various products, including programmable thermostats, CFLs, and hot water tank wraps.

ormation in general. It is to be noted that the addition of dimmable CFLs to the product list later in 2011 addresses some of the issues identified during the 2011 evaluation. Program Energy Savings To calculate the net savings of the EP-D...

AI summary The evaluation of the EP-DI program in 2011 calculated net savings by accounting for free-ridership and spillover effects, resulting in a net-to-gross ratio of 0.94. Combined with the Retail LED Direct Install pilot project, the program achieved 25.792 GWh in energy savings and 2.593 MW in demand savings.

savings calculation methodology for each type of product; > hours of operation; > installation rate; > interactive effects; > free-ridership; and > internal spillover. The impact evaluation was based on a review of the program tracking she...

AI summary The evaluation of the program's savings calculation methodology included on-site visits and participant surveys to assess installation rates, hours of operation, interactive effects, free-ridership, and internal spillover. Data collected was used to determine a unitary savings value for eligible products and to calculate the net-to-gross ratio (NTGR), which accounts for free-ridership and internal spillover.

nt surveys provided information to calculate the net-to-gross ratio (NTGR) for this program, including free-ridership and internal spillover. The NTGR was used to calculate the program net savings. Ref.: 5725 23 Efficient Products – Direct...

AI summary The text discusses the calculation of the net-to-gross ratio (NTGR) for the Efficient Products – Direct Install Program, using survey data to account for free-ridership and internal spillover. It also outlines the sampling methodology used for on-site visits, including the breakdown of installations in rental units, commercial buildings, and common areas.

rs and hot water tank wraps, the total gross energy savings at the meter for the EP-DI program were estimated at 24.737 GWh while the total demand savings at the meter were estimated at 2.487 MW. Ref.: 5725 48 Efficient Products – Direct I...

AI summary The EP-DI program's energy and demand savings were estimated at 24.737 GWh and 2.487 MW, respectively. The evaluation uses a self-report approach to assess the program's influence on customer decisions, including measuring free-ridership and spillover effects to calculate the net-to-gross ratio.

nd installed additional energy-efficient products following their previous participation in the program. Additional questions were used to verify the eligibility of the additional purchases by asking: > If they have benefited from any othe...

AI summary The evaluation of the Efficient Products – Direct Install Program found a low level of internal spillover, with only 12 participants out of 70 surveyed flagged for spillover. Of these, only four confirmed purchasing additional energy-efficient lighting products, resulting in 17.66 MWh of energy savings and a spillover level of 9.5 percent. The program's NTGR value is calculated as 0.94.

Efficiency Nova Scotia Corporation 2011 Evaluation Report This value is used for all products installed through the EP-DI program. However, this value cannot be used for products installed under the Retail LED Direct Install pilot project....

AI summary The 2011 Evaluation Report discusses the calculation of net savings for Efficiency Nova Scotia Corporation's programs. It uses the Net-to-Gross Ratio (NTGR) to adjust gross savings for the EP-DI program and the Retail LED Direct Install pilot project. Net energy savings were estimated at 25.792 GWh and net demand savings at 2.593 MW for 2011.

35.678 GWh 35.678 GWh 0.83 29.435 GWh Evaluation Results 29.995 GWh 29.995 GWh 27.161 GWh 0.95 25.792 GWh Demand Savings Tracked Savings from ENSC 3.589 MW 3.589 MW 3.589 MW 0.83 2.961 MW Evaluation Results 3.017 MW 3.017 MW 2.731 MW 0.95...

AI summary The evaluation of the Efficient Products – Direct Install Program in 2011 found that net energy savings were slightly lower than tracked savings, primarily due to adjustments in unitary savings values and interactive effects factors. The Net-to-Gross Ratio (NTGR) was revised upward for certain programs but did not fully offset the impact of these adjustments.

per energy-efficient product implemented or installed under the pilot projects. These adjustments were made on the basis of national demand-side management (DSM) studies carried out in 2010 and 2011. In its net savings calculations, Econol...

AI summary The evaluation of the EnerGuide for Existing Houses Program found net energy savings of 4.805 GWh and demand savings of 1.543 MW in 2011. Free-ridership was measured at 31%, while spillover effects were very low at 1%, leading to a net-to-gross ratio of 0.70.

7 Standard + Plus Pipe Insulation 74 74 Standard + Plus Hot Water Tank Wraps 399 270 Ref.: 5725 ix EnerGuide for Existing Houses Program Efficiency Nova Scotia Corporation 2011 Evaluation Report Finally, the addition of interactive effects...

AI summary The 2011 EnerGuide for Existing Houses Program evaluation report notes that net-to-gross ratios were lower in 2011 compared to 2010, and that demand savings were adjusted downward by over 35% due to revised estimates for electric thermal storage systems.

is evaluation. To do so, Econoler analyzed the following parameters: > HOT2000 simulations; > prescriptive measure savings; > free-ridership; and > internal spillover. The impact evaluation was essentially based on a comparative analysis o...

AI summary Econoler evaluated the program's impact by analyzing HOT2000 simulations, prescriptive measure savings, free-ridership, and internal spillover. The evaluation involved comparing program tracking sheets, building simulations, and participant surveys to estimate net energy savings and account for free-ridership and internal spillover.

rveys provided information to calculate the net-to-gross ratio (NTGR) for this program, including free-ridership and internal spillover. The NTGR established was used to calculate program net savings. Last year’s verification study recomme...

AI summary The evaluation of the EnerGuide for Existing Houses Program used the net-to-gross ratio (NTGR) to calculate program net savings, considering free-ridership and internal spillover. The previous year's verification study suggested using a non-equivalent control group design, but this was not implemented due to time constraints and challenges with selectivity bias.

on of residences in Nova Scotia that are heated electrically and those that use air conditioning units or systems. This calculation resulted in a weighted interactive effects factor of -48.3 percent. Table 32: Interactive Effects Factor fo...

AI summary The text discusses the calculation of a weighted interactive effects factor for pipe insulation and hot water tank wraps in Nova Scotia, resulting in a -48.3% factor. It includes a table showing the distribution of residences by heating and cooling systems and their respective effects. The section also mentions that interactive effects for other products are considered negligible.

ctor -48.3% For all other products installed, interactive effects were considered as negligible. 4.4 NET-TO-GROSS RATIO The NTGR evaluation of the program is based on a self-report approach which relies on a series of questions designed to...

AI summary The evaluation of the EnerGuide for Existing Houses Program includes a Net-to-Gross Ratio (NTGR) analysis, which assesses free-ridership and internal spillover effects based on participant self-reports. The NTGR is calculated using a specific formula that accounts for these distortion effects.

r approximately 0.5 percent of total gross energy savings for the sample.33 This percentage corresponds to energy savings at the generator attributable to the program totalling approximately 37.3 MWh. For the 2011 program impact evaluation...

AI summary The 2011 EnerGuide for Existing Houses Program evaluation report calculates net savings by adjusting gross energy savings for interactive effects and the net-to-gross ratio (NTGR). The gross savings were approximately 246.8 MWh, with an internal spillover level of 1 percent considered in the calculations.

Net savings = Gross Evaluation Savings × (1 + Interactive Effects Factor) × NTGR This equation was used for both demand and energy savings. The results obtained are presented in the next table. Ref.: 5725 63 EnerGuide for Existing Houses P...

AI summary The document presents a formula for calculating net savings using gross evaluation savings, an interactive effects factor, and the net-to-gross ratio (NTGR). The formula is applied to both demand and energy savings, with results summarized in Table 33, which is part of the 2011 Evaluation Report for the EnerGuide for Existing Houses Program by Efficiency Nova Scotia Corporation.

Savings per DWHR DWHR Program- Pipe Tank Solar 13 Watt 23 Watt Product Category EnerGuide (eff. = 30% (eff. ≥ mable CFLs CFLs Insulation Wraps DHW Point to 42%) 42%) thermostats Energy Savings Total Gross Energy Savings – at 4.521 0.001 0....

AI summary The text presents a detailed table of energy savings and demand savings for various products and programs, including EnerGuide, DWHR, and CFLs. It includes metrics such as gross and net energy savings, interactive effects factors, and NTGR. The data is analyzed at both the meter and generator levels.

% 0% 0% -48.3% -48.3% 0% 0% -43.8% -43.8% NTGR 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70 0.70 Total Net Demand Savings 0.869 0.0002 0.0005 0.007 0.018 0.082 0.008 0.082 0.011 (MW) – at Meter Line Loss Factor 1.105 1.105 1.105 1.105 1.105 1.1...

AI summary The document presents a table with data on Net-to-Gross Ratio (NTGR) and Total Net Demand Savings (MW) at Meter and Generator, along with a reference to an evaluation report on the EnerGuide for Existing Houses Program by Efficiency Nova Scotia Corporation in 2011.

ore they are at the stage of shopping. This aims to influence decision making of homeowners who have not already decided to replace or substitute their electric space heating/DHW system. Satisfaction Satisfaction towards the pilot was very...

AI summary The Fuel Substitution Pilot was highly satisfactory to participants, with no dissatisfaction reported. The program achieved net energy savings of 1.570 GWh and demand savings of 0.785 MW in 2011. A 42% free-ridership level was identified, but no spillover effects were found.

unique identification number that can be used as a reference. The tracking sheet includes all projects for which an application was submitted, even if the project was not approved or is not completed. All customer information necessary to...

AI summary The tracking sheet contains all submitted project applications, including customer information and energy savings calculations. A discrepancy was found in one project where savings were double the prescriptive savings, but the PM justified it with a billing analysis. Energy savings are defined by the PM based on the type of system selected, with prescriptive savings estimates from Dunsky Energy Consulting in 2010.

05 1.105 1.105 1.105 1.105 1.105 1.105 1.105 1.105 1.105 Total Gross Energy Savings – at Generator 1.305 1.153 0.109 0 0 0.074 0.054 0 0 0 0.012 0 (GWh) Demand Savings Unitary demand savings 4.00 4.00 7.66 7.66 7.66 10.34 7.66 10.34 7.57 4...

AI summary The document presents data on energy and demand savings from a pilot program, including total gross energy savings and demand savings at different points. It references an evaluation report on the Fuel Substitution Pilot Program by Efficiency Nova Scotia Corporation from 2011, which includes a section on the Net-to-Gross Ratio (NTGR) calculated using a self-report approach from participant surveys.

gned to measure the influence of the pilot on customers’ decisions to substitute electric heating or DHW systems with another source of energy. These questions were included in the participant survey. This section presents the methodology...

AI summary This section discusses the methodology for calculating the Net-to-Gross Ratio (NTGR) by assessing distortion effects such as free-ridership and spillover. It outlines how free-ridership is measured through survey questions that determine whether participants would have made the same energy substitution decisions without the pilot program.

articipants who installed a natural gas heating system replace or substitute electric appliances with natural gas appliances, following or during their participation in the pilot due to its influence. During the telephone survey, the parti...

AI summary The Fuel Substitution Pilot Program's net savings were calculated using the Net-to-Gross Ratio (NTGR) of 0.58. The pilot's net savings were estimated as 1.300 GWh based on gross savings of 2.741 GWh. The NTGR was derived from free-ridership and spillover levels, with no spillover identified due to the lack of additional natural gas appliance installations by participants.

tion with the implementation of a series of prescriptive measures. An initial methodology using a billing analysis was planned, but after a preliminary analysis of the participant database, Econoler Ref.: 5725 vi Low Income Program Efficie...

AI summary The evaluation of the Low Income Program by Efficiency Nova Scotia Corporation in 2011 showed net energy savings of 7.636 GWh and demand savings of 1.632 MW. The program's net-to-gross ratio (NTGR) was assumed to be 1 due to minimal distortion effects.

r -9.0% For all other products installed, interactive effects were considered as negligible. 4.4 NET-TO-GROSS RATIO The Low Income program offers free energy audits and implementation of energy efficiency measures for low-income homeowners...

AI summary The Low Income program provides free energy audits and efficiency measures to low-income homeowners. The net-to-gross ratio (NTGR) is assumed to be 1 due to minimal distortion effects. Net savings are calculated using gross evaluation savings, interactive effects factors, and NTGR, resulting in 6.910 GWh and 1.477 MW energy and demand savings at the meter, and 7.636 GWh and 1.632 MW at the generator.

tion is aimed at determining the gross and net savings of the program for 2011. Both energy and demand savings were considered in this evaluation. To do so, Econoler analyzed the following parameters: > outcomes from HOT2000 simulations pe...

AI summary The evaluation of the Performance Plus program in 2011 considered both energy and demand savings, using data from HOT2000 simulations and the EEH program. Due to complications with obtaining simulation files from NRCan, EEH program savings data was used instead. A participant survey and builder interviews were used to calculate the net-to-gross ratio, including free-ridership, internal spillover, and market effects.

ulate the net-to-gross ratio for this program, including free-ridership, internal spillover and market effects. The NTGR established was used to calculate program net savings. 4.2 GROSS SAVINGS As mentioned previously, the 2011 evaluation...

AI summary The document discusses the calculation of net-to-gross ratio for the Performance Plus program, including free-ridership, internal spillover, and market effects. Gross savings are calculated using parameters such as incremental energy savings per EnerGuide point and energy-to-demand ratio for demand savings.

tive Effects Interactive Effects Parameters % of Residences during Heating Period during Cooling Period Electric Baseboard Heating with 37% x 18% = 6.7% -100% x 8/12 = -67% +100% x 2/12 = +17% Air Conditioning Electric ASHP or GSHP Heating...

AI summary The document presents a breakdown of interactive effects on energy use by different heating and cooling systems, including calculations for percentages of residences and weighted effects. It also discusses the Net-to-Gross Ratio (NTGR) evaluation method for a program, which uses a self-report approach from participant surveys to assess the impact of the program on energy efficiency measures.

questions designed to measure the influence of the program on participants’ decision to implement program-eligible energy efficiency measures. These questions were included in the participant survey. This section presents the methodology u...

AI summary This section discusses the methodology for calculating the Net-to-Gross Ratio (NTGR) for the Performance Plus Program, focusing on free-ridership, internal spillover, and market effects. It describes how survey responses are used to assess these distortion effects.

g equivalent weight to both market effect percentages found; i.e., from participating and non-participating builder interviews. The final market effects were therefore evaluated at 5 percent for 2011. In light of the above, Econoler recomm...

AI summary The evaluation of the Performance Plus program in 2011 found that market effects were estimated at 5%, based on interviews with participating and non-participating builders. Econoler recommended increasing the number of interviews in future evaluations to better capture market effects. Net savings were calculated using the interactive effects factors and the Net-to-Gross Ratio (NTGR).

Net savings = Gross Evaluation Savings × (1 + Interactive Effects Factor) × NTGR This equation was used for both demand and energy savings. The results obtained are presented in the next table. Ref.: 5725 36 Performance Plus Program Effici...

AI summary The document presents a formula for calculating net savings, incorporating gross evaluation savings, interactive effects, and the net-to-gross ratio (NTGR). The formula is applied to both energy and demand savings, with results detailed in a subsequent table.

acked Savings from ENSC 1.560 MW 1.560 MW 0.46 0.717 MW Evaluation Results 1.324 MW 1.180 MW 0.73 0.861 MW As per the last table, the evaluated net energy savings exceeded those tracked by ENSC by more than 80 percent. This is mainly due t...

AI summary The evaluation of the Performance Plus Program by ENSC shows that net energy savings exceeded initial tracking by over 80%, primarily due to adjustments in the house rating baseline and the inclusion of energy and demand savings from efficient lighting. The Net-to-Gross Ratio (NTGR) increased from 0.46 to 0.73, reflecting changes in free-rider evaluation approaches. Demand savings realization was lower at 120% due to adjustments in peak demand savings calculations.

n and interactive effects affecting program demand and energy savings. All of these activities were used to establish an adjustment ratio for the gross energy savings calculated in the tracking sheet. The participant surveys provided infor...

AI summary The document discusses the calculation of the net-to-gross ratio (NTGR) for the Business Energy Rebates Program, incorporating factors like free-ridership and internal spillover. It also outlines the sampling methodology used for on-site visits based on the tracking sheet project list from 2011.

nd at 1.710 MW, respectively. 8 ADS ASSOCIÉS, “Évaluations des effets énergétiques combinés des mesures d’économies d’énergie – résidence unifamiliale,” report presented to Hydro-Québec, 1992. Ref.: 5725 32 Business Energy Rebates Efficien...

AI summary This section discusses the methodology used to evaluate the Net-to-Gross Ratio (NTGR) for the Business Energy Rebates (BER) program. It focuses on identifying free-ridership and internal spillover effects, which are used to calculate the NTGR using a specific formula. ENSC began screening participants for free-ridership in 2011.

Efficiency Nova Scotia Corporation 2011 Evaluation Report The 2010 program evaluation revealed no internal spillover. This year, a new approach using in-depth interviews with participants was used to capture potential internal spillover. N...

AI summary The 2011 evaluation of Efficiency Nova Scotia Corporation's program found minimal internal spillover, with only one participant purchasing additional energy-efficient products. Spillover accounted for 0.2% of total energy savings. The net-to-gross ratio (NTGR) was estimated at 0.83, used to calculate net savings for the program.

or the program were estimated using the NTGR above. The equation below was used to calculate the program net savings. Net savings = gross evaluation savings × net-to-gross ratio This equation was used for both demand and energy savings. Th...

AI summary The document presents calculations of net savings from energy and demand programs using the Net-to-Gross Ratio (NTGR). For 2011, total net energy savings at the generator level are estimated at 7.002 GWh, and net demand savings are estimated at 1.419 MW.

a Corporation 2011 Evaluation Report The SLC program aimed at achieving net electricity savings of 8.04 GWh in 2011. KEY FINDINGS The 2011 evaluation of the SLC program demonstrated that the latter is well designed and has a good potential...

AI summary The SLC program achieved significant energy and demand savings in 2011, with net energy savings of 7.954 GWh and demand savings of 2.050 MW. The program's success was supported by increased product sales and a 19% free-ridership level, leading to a net-to-gross ratio of 0.81.

Net-to-Gross Ratio 0.81 The evaluation revealed that the SLC program had generated net energy savings of 7.954 GWh and demand savings of 2.050 MW at the generator in 2011. Ref.: 5725 v Smart Lighting Choices Program Efficiency Nova Scotia...

AI summary The evaluation of the Smart Lighting Choices Program (SLC) by Efficiency Nova Scotia Corporation (ENSC) found that the program generated 7.954 GWh of net energy savings and 2.050 MW of demand savings at the generator in 2011. The net-to-gross ratio (NTGR) for the SLC program was 0.81, indicating the proportion of gross savings that were net savings after accounting for interactive effects.

blish installation rates, hours of operation and interactive effects on program demand and energy savings. The gross energy savings evaluation is the result of data collection and savings adjustments. The distributor interviews provided in...

AI summary The document discusses the evaluation of the Smart Lighting Choices Program, including the calculation of net-to-gross ratio based on free-ridership and sampling methodology for on-site visits. Data on lamp and ballast sales from distributors is used to assess program effectiveness.

Parameters Buildings Electric heating with air conditioning 14.71% -43.4% Electric heating without air conditioning 8.82% -49.0% No electric heating with air conditioning 52.94% 5.7% No electric heating without air conditioning 23.53% 0.0%...

AI summary The document presents data on the distribution of electric heating and air conditioning usage, along with a weighted interactive effect factor. It references a 1992 report by ADS ASSOCIÉS on energy efficiency evaluations and discusses the Net-to-Gross Ratio (NTGR) methodology for the Smart Lighting Choices (SLC) program, including the assessment of free-ridership.

ew questions into a NTGR. For the SLC program, the NTGR includes the assessment of one distortion effect: free-ridership. Once this effect is quantified, the NTGR is calculated based on this equation: Net-to-gross ratio = (1 – % free-rider...

AI summary The text discusses the calculation of the Net-to-Gross Ratio (NTGR) for the SLC program, focusing on free-ridership as a distortion effect. Distributors were interviewed to estimate the program's influence on customer purchasing decisions and the percentage of products that would have been sold without the program. Free-ridership was calculated as a weighted average based on energy savings per product category.

ucts. The final free-ridership value for the program was obtained by calculating the weighted average of the free- ridership with the corresponding total energy savings, for each category of products. Using this approach, in-depth intervie...

AI summary The evaluation report discusses the Smart Lighting Choices (SLC) program, calculating a free-ridership level of 19% and a Net-to-Gross Ratio (NTGR) of 0.81. The SLC program significantly influenced the sale of high-performance lighting products, while the UBER sub-program had a NTGR of 1 due to the recent introduction of expensive lighting products.

s 0.81. For the UBER sub- program, a NTGR of 1 was used since this program included relatively expensive lighting products that had only recently been introduced in the market. 4.6 NET SAVINGS The net savings for the program were estimated...

AI summary The document discusses the calculation of net savings for energy and demand programs, using the Net-to-Gross Ratio (NTGR). For the UBER sub-program, an NTGR of 1 was used due to the inclusion of expensive, newly introduced lighting products. Net savings for 2011 are estimated at 7.954 GWh for energy and 2.050 MW for demand.

gs for all sample projects, in accordance with the specifics of each project type. This calculation resulted in adjustment factors that are used to estimate the overall gross savings of both programs. Afterwards, the Evaluator determined t...

AI summary The evaluation determined a free-ridership level of 7% and no spillover effects for the C&IC and CINC programs in 2011, leading to a net-to-gross ratio of 0.93. This ratio was used to calculate net energy and peak demand savings.

Free-Ridership Level 7% Spillover Level 0% Net-to-Gross Ratio 0.93 The evaluation revealed that the C&IC and CINC programs had respectively generated net energy savings of 30.323 GWh and 2.607 GWh at the generator in 2011. Regarding electr...

AI summary The evaluation of the C&IC and CINC programs in 2011 showed higher net energy savings compared to ENSC's tracked savings, attributed to a reduction in free-ridership from 10% in 2010 to 7% in 2011. This improvement was due to an enhanced screening process implemented by ENSC for participants who signed the PDA in 2011.

of forecast energy savings of the two C&I Custom programs (C&IC and CINC) accounted for approximately 30 percent of the total expected savings to be generated by all ENSC programs for the same period. This section presents the work complet...

AI summary The document discusses the evaluation of the impact of the C&IC and CINC programs in 2011, including on-site visits and calculations of energy and peak demand savings. The evaluation involved determining adjustment factors and net-to-gross ratios to estimate overall savings.

ence of the program on participants’ decision to purchase eligible energy-efficient products. These questions were included in the participant survey and in five in-depth interviews conducted on site. This section presents the methodology...

AI summary This section discusses the methodology used to calculate the Net-to-Gross Ratio (NTGR) for the C&IC program, considering distortion effects such as free-ridership and internal spillover. It also notes that the CINC program has a minimal spillover effect and uses the same NTGR as the C&IC program due to similar characteristics.

Efficiency Nova Scotia Corporation 2011 Evaluation Report With the aim of refining the spillover evaluation, the Evaluator also carried out four in-depth interviews with C&IC program participants in November 2011.15 Through these interview...

AI summary The 2011 evaluation report for Efficiency Nova Scotia Corporation's C&IC program found no internal spillover, despite using a new approach combining phone surveys and in-depth interviews. Net savings for the C&IC and CINC programs were calculated using the net-to-gross ratio.

Net savings = gross evaluation savings × net-to-gross ratio This equation was used for both demand and energy savings. The results obtained are presented in the next table. Table 22: 2011 Net Demand and Energy Savings for C&IC and CINC Pro...

AI summary The document discusses the calculation of net savings using the net-to-gross ratio (NTGR) applied to energy and demand savings from the C&IC and CINC programs. The results of the evaluation are presented in a table, and an interview with a CINC program participant did not reveal significant internal spillover effects.

munication need to be observed closely considering the fact that more changes will be made to the program in 2012. Indeed, ENSC is planning on including measures other than lighting to the program. Ref.: 5725 vi Small Business Energy Solut...

AI summary The evaluation of the Small Business Energy Solutions (SBES) program in 2011 found net energy savings of 23.176 GWh and demand savings of 6.820 MW. Free-ridership was estimated at 12.8%, and internal spillover at 0.8%, resulting in a net-to-gross ratio of 0.88.

aimed at determining the gross and net savings of the program for 2011. Both energy and demand savings were considered in this evaluation. To do so, the following parameters were analyzed by Econoler: > unitary wattage of the lighting prod...

AI summary The evaluation of the program's energy and demand savings for 2011 considered various parameters such as unitary wattage, hours of operation, and free-ridership. Data was collected through on-site visits, program tracking sheets, and participant surveys to assess gross and net savings, including interactive effects and diversity factors.

rovided information to calculate the net-to-gross ratio (NTGR) for this program, including free-ridership and internal spillover. The NTGR established was used to calculate the program net savings. Ref.: 5725 24 Small Business Energy Solut...

AI summary The document discusses the calculation of the net-to-gross ratio (NTGR) for the Small Business Energy Solutions Program, including free-ridership and internal spillover. It also outlines the sampling methodology used in the 2011 evaluation report, focusing on project categorization and data retrieval.

ts installed in refrigerated areas. The gross savings including interactive effects are presented in Table 22. Table 22: Gross Savings at the Meter – Including Interactive Effects Energy Savings (GWh) Demand Savings (MW) Lighting Lighting...

AI summary The text presents gross energy and demand savings from the SBES program, including interactive effects, with a net-to-gross ratio calculation discussed in the following section.

hting measures for regular spaces, the total gross energy and demand savings at the meter for the SBES program are estimated at 24.449 GWh and at 7.209 MW, respectively. 4.4 NET-TO-GROSS RATIO The NTGR evaluation of the program is based on...

AI summary The evaluation report discusses the Net-to-Gross Ratio (NTGR) for the Small Business Energy Solutions (SBES) program, focusing on free-ridership and internal spillover effects. The NTGR is calculated using a self-report approach based on participant survey responses.

rchases correspond to energy savings attributable to the program totalling 4.71 MWh for these participants. Spillover represented 0.8 percent of total energy savings for all the participants surveyed. Using the free-ridership level establi...

AI summary The evaluation report estimates the net savings for the Small Business Energy Solutions Program in 2011, using the NTGR value and accounting for interactive effects. Total net energy savings at the generator are estimated at 23.176 GWh, while net demand savings are estimated at 6.820 MW.

The 2011 program evaluation was carried out by Econoler. This is the first year Econoler has served as the independent evaluator. Econoler's full evaluation report is a document of 1,474 pages consisting of an impact evaluation for each of...

AI summary In 2011, Econoler conducted the first independent evaluation of the programs, producing a 1,474-page report. The evaluation included impact and process assessments for multiple programs, as well as the development of a Net-to-Gross methodology. ENSC also commissioned a socket study and an independent review of energy impacts at the New Page paper mill.

Net-to-Gross Evaluation Methodology EFFICIENCY NOVA SCOTIA CORPORATION December 15, 2011

AI summary The document outlines the Net-to-Gross Evaluation Methodology employed by Efficiency Nova Scotia Corporation in a regulatory proceeding dated December 15, 2011. It addresses the methodology for assessing energy efficiency programs, though specific details are not provided in the excerpt.

1.4 Efficient Products – Low-Income Renter The Low-Income Renter program was implemented in 2011. This program works with Community Services, local housing authorities, and landlords of low-income housing to offer free energy efficient upg...

AI summary The Low-Income Renter program (2011) partners with Community Services and local housing authorities to provide free energy upgrades for low-income tenants. The program assumes no distortion effects, resulting in a 100% Net-to-Gross Ratio (NTGR).

Free-Ridership The free-ridership level for this program is measured through questions included in a participant survey. Participants are considered to be free-riders when they declare they would have replaced their heating equipment if th...

AI summary Free-ridership is measured via participant surveys assessing whether replacements would have occurred without the program. Criteria include prior replacement plans, contractor contact, and timing. The Net-to-Gross Evaluation Methodology evaluates the program's influence on replacement decisions.

2011 DSM Program Evaluation Efficiency Nova Scotia Corporation Net-to-Gross Evaluation Methodology In the event that the decision maker is the builder, a general free-ridership level is determined for all builders through questions include...

AI summary The 2011 DSM Program Evaluation by Nova Scotia Corporation outlines a Net-to-Gross (NTG) methodology to assess free-ridership levels. Builder decision-makers are surveyed via in-depth interviews, and free-ridership is calculated using the ratio of homeowner to builder decision-makers from participant surveys.

Internal Spillover Following their participation in the program, some participants may have installed additional energy efficient products. If the program taught them about energy efficiency in general or raised their awareness about effic...

AI summary The document discusses internal spillover from a program, where participants may install additional energy-efficient products post-participation, leading to additional savings. Spillover is measured via surveys and follow-up calls to validate equipment purchases and program influence. The Net-to-Gross (NTG) evaluation methodology is used to quantify spillover effects.

Net-to-Gross Evaluation Methodology Efficiency Nova Scotia Corporation September 14, 2011

AI summary The document outlines the Net-to-Gross (NTG) Evaluation Methodology, with Efficiency Nova Scotia Corporation as the primary entity involved. The text includes a date (September 14, 2011) but lacks detailed content on NTG calculations or regulatory arguments.

Table 3: Residential New Construction Program Results by Measure For Plan Year 2013 For Plan Year 2014 For Plan Year 2015 16 analysis conducted that results in the filed DSM Plan. New information received by 17 ENSC between the Stakeholder...

AI summary The document outlines updates and refinements made to the DSM Plan, including revised avoided costs, changes in measure benefit cost analysis, and adjustments to program measures and budgets based on new information received by ENSC.

upgrades, in the Low Income program. 1 Request IR-2: 25 Lifetime Benefits is a summation of the avoided energy costs and avoided capacity costs 26 by measure within a program. 27 28 Incremental Annual Net Energy Savings at Generator (GWh)...

AI summary The text discusses the calculation of Lifetime Benefits, Incremental Annual Net Energy Savings, and Incremental Annual Net Demand Savings within the Low Income program. It also introduces the TRC and PAC tests used to evaluate program components, such as the Efficient Products program, including the Screw-In (<=15W) Efficient Products measure.

upgrades, in the Low Income program. 1 Request IR-2: 23 within a Program, plus the summation of the ENSC incentive costs by measure within a 24 program. 25 26 Lifetime Benefits is a summation of the avoided energy costs and avoided capacit...

AI summary The text discusses the Low Income program, focusing on the calculation of incentive costs, energy savings, and demand savings by measure. It outlines the TRC and PAC tests used to evaluate program effectiveness, including specific data for the Efficient Products program, such as measure life, NTG, participant numbers, and cost details.

2 Nature of the Error The systemic error relates to the erroneous application of the Net-to-Gross (NTG) factor, which is essentially equal to 1 - Free Rider %, in the determination of measure-specific incentive costs and energy savings. Es...

AI summary The error in the regulatory proceeding involves the incorrect application of the Net-to-Gross (NTG) factor in calculating measure-specific incentive costs and energy savings. The NTG factor was applied twice instead of once, leading to inaccuracies in parameters such as Net Avoided Cost Benefits and Technology Costs. The error also affected the ENSC Investment and Program Administrator Cost (PAC) Test, which was based on net instead of gross incentives.

Table 1: Parameters for Screw-In (<=15W) Efficient Products, Replace on Burnout, Retail Markdown Comment Revision (BOLD) Remove Incentives paid to Free Riders from TRC calculation. TRC Test = (Energy Avoided Costs + Demand Avoided Costs) N...

AI summary The text discusses the calculation of the Total Resource Cost (TRC) for efficient screw-in products, including adjustments to remove incentives for free riders and parameters such as the Net-to-Gross factor, administrative costs, and energy avoided costs.

Within programs, the error has the greatest impact on those programs with a relatively high percentage of measures with relatively low NTG factors, such as the Existing Residential and New Residential programs. The following aggregate prog...

AI summary The error in the programs has the greatest impact on those with high percentages of measures with low NTG factors, such as the Existing Residential and New Residential programs. However, aggregate program and sectoral results like Incremental Annual Net Energy Savings and Incremental Annual Net Demand Savings were not materially affected.

6.1 Testing of Prior RAM Tools Navigant confirms that the NTG duplication error was not present in the RAM Tool used in previous years. In checking the tool used to support ENSC in its 2012 DSM plan Navigant discovered that only net incent...

AI summary Navigant found that the NTG duplication error was not in the RAM Tool used in previous years. However, in the 2012 DSM Plan, only net incentives were considered, leading to an underforecast of ENSC's investment by $2.2M (4.8%) due to not accounting for incentives paid to free riders.

ENSC 2013-2015 DSM Plan Filing (NSUARB-E-ENSC-R-12) ENSC Responses to Multeese Information Requests 1 Request IR-12: 2 3 With respect to ENSC's revised response to Multeese IR-5(a) and 5(b) dated April 18, 2012, 4 the inclusion of NTG in t...

AI summary The document discusses the calculation of the Total Resource Cost (TRC) for ENSC's 2013-2015 DSM Plan, referencing previous methods used in 2011 and 2012. It confirms consistency in the TRC calculation method and notes that the net-to-gross evaluation approach was used in 2011.

We clarify today how the NTG ratio is to be applied to the cost-side of the TRC equation. As described in the SPM and reiterated in D.06-06-063, the intent of the TRC test of cost-effectiveness is to capture " all costs associated with the...

AI summary The document clarifies the application of the Net-to-Gross (NTG) ratio to the cost-side of the Total Resource Cost (TRC) equation, emphasizing the inclusion of all costs associated with energy efficiency activities, including those incurred by free rider participants.

WHAT ARE YOU CONCLUSIONS? - My conclusions are as follows: - a) The DSM programs proposed for 2013-15 are modified continuations of programs previously approved by the Board. The modifications of programs reflect ENSC's experience to date...

AI summary The conclusions support the approval of modified DSM programs for 2013-15, updated avoided cost calculations, inclusion of NTG ratios in TRC and PAC calculations, a multi-year approach for energy efficiency, and a modified methodology for allocating energy efficiency program costs.

David S. MacDougall Direct +1 (902) 444 8561 [email protected] Purdy's Wharf Tower II 1300-1969 Upper Water Street PO Box 730 Halifax NS Canada B3J 2V1 Tel +1 (902) 425 6500 I Fax +1 (902) 425 6350 Our File: DM-448 January...

AI summary Bowater Mersey Paper Company Ltd. challenges Efficiency Nova Scotia's proposed use of telephone surveys to assess free-ridership in the Custom-Retrofit and New Construction programs. They argue this method is unlikely to accurately identify free-riders, as participants may not admit to implementing energy efficiency measures without program incentives, contrary to DSM funding principles.

Re: Comments on Econoler Report The Consumer Advocate makes two suggestions in response to the Econoler report on Net-to-Gross Evaluation Methodology. (a) ENSC should consider more frequent updates of the surveys, and occasional calibratio...

AI summary The Consumer Advocate proposes improving the reliability of Net-to-Gross Evaluation Methodology by updating surveys more frequently and calibrating them with social service studies. They criticize the SRA method's unreliability due to social desirability bias and suggest using double-blind studies as a check. They also argue that NTGRs should be updated promptly when data becomes available, especially for new programs.

1.1 EVALUATION OBJECTIVES The objectives of the 2012 evaluation of ENSC's DSM programs involve: - > assessing the effectiveness of program design and delivery; - > determining the extent to which program implementation is proceeding as pla...

AI summary The 2012 evaluation of ENSC's DSM programs aimed to assess design effectiveness, verify implementation progress, measure gross and net energy/demand savings, and calculate the Net-To-Gross Ratio (NTGR) to evaluate program performance.

y the participant, the number of sites to be visited was increased for the 2012 evaluations to allow for establishing reliable installation rates and self-declaration ratios on the hours of operation. The 2011 verification study suggested...

AI summary The evaluation enhanced data collection methods by increasing site visits and using billing analysis to improve savings estimates. Direct measurement and expanded samples improved accuracy for programs like HEA and BES, while other programs relied on file reviews and literature. Net savings adjustments incorporated free-ridership and spillover factors via NTGR calculations.

net savings impacts, interactive effects factors as well as NTGRs that incorporated levels of free-ridership and, in some cases, spillover, were applied to the gross savings impacts, where applicable. The estimation of NTGRs for the 2012 e...

AI summary The text discusses the estimation of net-to-gross ratios (NTGRs) for ENSC's programs in 2012, incorporating free-ridership and spillover effects. A self-report approach with surveys and interviews was used to determine free-ridership levels, which were then applied to gross savings impacts. The methodology aligns with practices in other jurisdictions like California and New York.

& lt;sup>b The 2011 free-ridership level refers to Energuide for Existing Houses. & lt;sup>c The free-ridership level calculated for RDI is for the non-low-income participants. & lt;sup>d The 2011 free-ridership level refers to Smart Light...

AI summary The text discusses the calculation of the Net-to-Gross Ratio (NTGR) for ENSC's programs, using free-ridership and spillover levels. The NTGR formula is provided, and the evaluation includes the impact of spillover effects on program effectiveness.

Appliance Retirement The evaluated net savings of ARet fell short of those tracked by ENSC by 13 percent. This result is mainly due to the revision of the unitary savings values for each type of appliance. The revised unitary savings value...

AI summary The evaluated net savings of the Appliance Retirement program (ARET) were 13% lower than those tracked by ENSC, primarily due to revised unitary savings values for refrigerators and freezers, which were affected by newer units being retired. Additionally, the Net-to-Gross Ratio (NTGR) increased from 0.79 to 0.84 due to lower free-ridership.

Instant Savings The net evaluated energy savings of Instant Savings exceeded those tracked by ENSC by 6 percent although some unitary savings values were revised downward. The main element that explains this result is the difference betwee...

AI summary The Instant Savings program's net evaluated energy savings exceeded ENSC's tracking by 6%, primarily due to changes in the NTGR for CFLs and a lower freeridership rate. The inclusion of outdoor installation percentages improved the accuracy of savings evaluation.

Fuel Substitution The net energy savings calculated for Fuel Substitution are 3 percent higher than those calculated from the tracking sheet. This can be explained by the increase in the NTGR calculated for this evaluation in comparison to...

AI summary The net energy savings from Fuel Substitution are 3% higher than those from the tracking sheet due to an updated NTGR calculation. Free-ridership levels decreased in 2012, likely due to increased marketing efforts, but savings from wood and pellet stoves were reduced after billing analysis.

Residential Direct Install The net savings values calculated for RDI are slightly higher than those calculated from the tracking sheet. This can be explained by the difference in some of the parameters used by ENSC and the Evaluator to est...

AI summary The net savings values for the Residential Direct Install (RDI) program are slightly higher than those calculated from the tracking sheet due to differences in parameters used by ENSC and the Evaluator, including revised unitary savings values, installation rates, and a slightly higher NTGR measured during the evaluation.

Solar The net energy savings calculated for Solar were 43 percent higher than those tracked by ENSC. This can be mainly explained by the fact that the NTGR estimated by the Evaluator was 1.0 while that assumed by ENSC was 0.70. Also, a sma...

AI summary The net energy savings for Solar were 43% higher than those tracked by ENSC, primarily due to a higher NTGR estimate (1.0) compared to ENSC's assumption of 0.70. A minor adjustment for space heating had a negligible impact.

Business Energy Rebates For the mail-in rebate component of BER, the net energy and demand savings evaluated for 2012 were slightly lower than those tracked by ENSC, respectively by 7 percent and 3 percent. This could mainly be explained b...

AI summary The document discusses the evaluation of energy and demand savings for the Business Energy Rebates (BER) program in 2012. Mail-in rebates showed slightly lower savings than tracked by ENSC, while instant rebates showed higher savings. Adjustments, diversity factors, and NTGR values were used to refine the estimates of savings.

Custom New Construction The net energy savings at the generator calculated by Econoler are approximately 22 percent lower than those tracked by ENSC. This difference is mainly due to the NTGR ratio established as part of this year's evalua...

AI summary The net energy savings calculated by Econoler are 22% lower than those tracked by ENSC, mainly due to the NTGR ratio. The peak demand savings difference is 33%, influenced by adjustments in diversity factors and discrepancies in project claims. Free-ridership is also noted, with participants implementing energy efficiency measures for reasons beyond the program.

DEFINITIONS Base case A base case details the information on how assumed gross savings used in the tracking sheet have been established. Usually, these savings are calculated with a series of variables such as hours of operation, wattage o...

AI summary This section defines key terms related to energy efficiency programs, including base case, demand savings, distortion effects, and net-to-gross ratio. It provides clear explanations of concepts such as evaluated savings, free-ridership, and interactive effects, which are important for program evaluation and measurement.

Table 1: Distortion Effects and Net-to-Gross Ratio 2012 Free-Ridership Level 17% Spillover Level 1% Net-to-Gross Ratio 0.84 The evaluation revealed that ARet generated net energy savings of 6.795 GWh and demand savings of 0.999 MW at the g...

AI summary Table 1 presents the free-ridership level, spillover level, and net-to-gross ratio for 2012, along with the energy and demand savings generated by ARet in that year.

4.4 NET-TO-GROSS RATIO The net-to-gross ratio (NTGR) assessment is based on a self-report approach which relies on a series of questions designed to measure the influence of the program on customers' decision to participate in the program....

AI summary This section discusses the methodology for calculating the net-to-gross ratio (NTGR) using a self-report approach based on participant surveys. The NTGR accounts for free-ridership and spillover effects, with the formula NTGR = 1 - % free-ridership + % spillover.

Program Energy Savings The impact evaluation is the result of three main activities: a review of unitary savings used to estimate gross savings, the CFL and LED-buyer intercept survey and retailer interviews. To calculate the gross and net...

AI summary The impact evaluation of program energy savings involved analyzing unitary savings, conducting surveys on CFL and LED buyers, and interviewing retailers. Econoler calculated the net-to-gross ratio (NTGR) for regular CFLs, LED lamps, and clothes washers, considering free-ridership and spillover effects. For other products, a NTGR of 1 was used due to insufficient buyer data.

Table 2: Comparison of Tracked and Evaluated Savings at the Generator Initial Gross Savings Installed Gross Savings Installed Gross Savings with Interactive Effects NTGR Net Savings Energy Savings Tracked Savings from ENSC 19.009 GWh 16.31...

AI summary Table 2 compares tracked and evaluated energy and demand savings from Efficiency Nova Scotia Corporation (ENSC) programs, highlighting differences in gross and net savings, as well as the Net-to-Gross Ratio (NTGR) for each category of product.

These net evaluated energy savings exceeded those tracked by ENSC by 6 percent although some unitary savings values were revised downward. The main element that explains this result is the difference between the NTGR measured for this eval...

AI summary The evaluation found that net energy savings exceeded those tracked by ENSC by 6 percent, attributed to changes in the NTGR and more accurate free-ridership measurements. The NTGR for regular CFLs increased from 0.53 to 0.70, and the inclusion of outdoor installation percentages improved savings evaluation accuracy.

retailer's stores were applied manually by the cashier at the time of sale. However, ENSC ensured that the retailer was only reimbursed for the amount rebated to the customer when mistakes were made. To estimate the gross energy and demand...

AI summary The 2012 tracking sheet for the Instant Savings program is deemed complete and easy to use. ENSC used unitary savings values and net-to-gross ratios to calculate program savings. Econoler noted improvements from last year and recommended minor adjustments for future monitoring.

4.4 NET-TO-GROSS RATIO This section presents the methodology used to transform information obtained through the intercept survey and retailer interviews into a net-to-gross ratio (NTGR). For Instant Savings, the NTGR includes the assessmen...

AI summary This section explains the methodology used to calculate the net-to-gross ratio (NTGR) for the Instant Savings program, considering free-ridership and spillover effects for specific products. A NTGR of 1 is applied to other products due to challenges in assessing these effects.

Table 33: Net-to-Gross Ratios Category of Product Free-Ridership Spillover NTGR Regular CFLs 59% 29% 0.70 Specialty CFLs - - 1.00 LED Lamps 33% 20% 0.87 CEE Tier 3 Clothes Washers 78% 48% 0.70 LED Given Away During In-Store Events - - 1.00...

AI summary Table 33 presents net-to-gross ratios (NTGR) for various energy-efficient products, indicating the proportion of savings that are retained versus lost due to free-ridership and spillover effects. For example, regular CFLs have a 59% free-ridership rate and a 29% spillover rate, resulting in an NTGR of 0.70.

Line loss factor Percentage of the electrical energy losses occurring in the transmission and distribution system between the utility generator and the customer meter. Net energy savings Energy savings generated by energy efficiency measur...

AI summary The text defines key terms related to energy efficiency and measurement, including line loss factor, net energy savings, net-to-gross ratio, sampling error, sample size, spillover, and tracked savings, as calculated and used by EnerGuide for Existing Houses (ENSC).

4.1 OBJECTIVE AND APPROACH OF THE IMPACT EVALUATION The impact evaluation is aimed at determining the gross and net savings of the program for 2012. As explained in Section 1, HEA implementation started in April 2012 and can be seen as a m...

AI summary The impact evaluation for 2012 assesses the gross and net savings of the HEA program, which replaced the EEH program. It considers energy and demand savings, using HOT2000 simulations, prescriptive measure savings, free-ridership, and internal spillover. The evaluation uses tracking sheets, billing calibration, and participant surveys to estimate net savings.

4.5 NET SAVINGS The net savings for the program were estimated using the interactive effects factors and the NTGR above. The equation below was used to calculate the net savings. Net savings = Gross Evaluation Savings × (1 + Interactive Ef...

AI summary The net savings for the program were calculated using an equation that incorporates gross evaluation savings, interactive effects factors, and the NTGR. This calculation was applied to both demand and energy savings, with results presented in a table.

DEFINITIONS Base Case A base case details the information on how assumed gross savings used in the tracking sheet have been established. Usually, these savings are calculated with a series of variables such as hours of operation, wattage o...

AI summary The text defines key terms related to energy efficiency programs, including base case, demand savings, distortion effects, gross and net energy savings, and net-to-gross ratio. It outlines the evaluation process for energy efficiency programs and highlights the importance of accounting for factors like free-ridership and interactive effects.

4.2.1 Unitary Savings Values Review Based on Billing Analysis 28 4.2.2 Unitary Savings Values Review Based on a Literature Review 35 4.2.3 On-Site Visit Results 38 4.2.4 Revised Gross Savings 39 4.3 Ne et-To-Gross Ratio 41 4.3.1 Free-Rider...

AI summary The text outlines various sections of a regulatory proceeding document, including reviews of unitary savings values, net-to-gross ratio analysis, free-ridership, spillover effects, and demographic data. It also references appendices containing recommendations, interview guides, on-site visit protocols, and algorithms for free-ridership calculation.

Table 1: Distortion Effects and Net-to-Gross Ratio 2012 Free-Ridership Level 32% Spillover Level 1% Net-to-Gross Ratio 0.69 The evaluation revealed that Fuel Substitution generated net energy savings of 1.549 GWh and demand savings of 0.85...

AI summary Table 1 presents distortion effects and the Net-to-Gross Ratio for 2012, showing a free-ridership level of 32% and a net-to-gross ratio of 0.69. The evaluation indicates that Fuel Substitution achieved energy savings of 1.549 GWh and demand savings of 0.857 MW at the generator in 2012.

Table 2: Comparison of Tracked and Evaluated Savings at the Generator Initial Gross Savings NTGR Net Savings Energy Savings Tracked Savings from ENSC 2.592 GWh 0.58 1.503 GWh Evaluation Results 2.245 GWh 0.69 1.549 GWh Demand Savings Track...

AI summary Table 2 compares tracked and evaluated energy and demand savings from the Efficiency Nova Scotia Corporation (ENSC) program in 2012. The net energy savings are 3% higher than tracked savings due to an improved NTGR and lower free-ridership, but unitary savings for wood and pellet stoves decreased after billing analysis.

4.1 OBJECTIVE AND APPROACH OF THE IMPACT EVALUATION The purpose of the impact evaluation is to determine the gross and net savings of the program for 2012. Both energy and demand savings were considered in this evaluation. To do so, the fo...

AI summary The impact evaluation for 2012 assesses the program's gross and net energy and demand savings. Key factors include unitary savings values, free-ridership, and spillover. The evaluation relied on reports, on-site visits, and a survey of participants to validate savings estimates and calculate the net-to-gross ratio (NTGR).

4.3 NET-TO-GROSS RATIO The NTGR evaluation of the program is based on a self-report approach which relies on a series of questions designed to measure the influence of the program on customers' decisions to reduce the level of electricity...

AI summary The section discusses the methodology for calculating the Net-to-Gross Ratio (NTGR) for a program, using a self-report approach based on customer survey responses. It evaluates distortion effects like free-ridership and spillover, and provides an equation to calculate the NTGR.

4.4 NET SAVINGS Net savings for the Program were estimated using the NTGR value obtained above. The equation below was used to calculate demand and energy net savings. Net Savings = Gross Evaluation Savings × NTGR This equation was used fo...

AI summary Net savings for the Program were calculated using the NTGR value, resulting in total net energy savings of 1.408 GWh at the meter and 1.549 GWh at the generator, and net demand savings of 0.779 MW at the meter and 0.857 MW at the generator.

DEFINITIONS Base case A base case details the information on how assumed gross savings used in the tracking sheet have been established. Usually, these savings are calculated with a series of variables such as hours of operation, wattage o...

AI summary The document defines key terms related to energy efficiency programs, including base case, demand savings, distortion effects, and net-to-gross ratio. It outlines how energy savings are calculated, evaluated, and tracked, considering factors like interactive effects and distortion effects.

Program Energy Savings To calculate the net savings of LIHS in 2012, Econoler reviewed the gross savings using two features, namely the savings per EnerGuide point increase and the savings generated in relation to the implementation of a s...

AI summary The document evaluates the energy savings of the Low-Income Home Upgrade (LIHS) program in 2012. It calculates net energy savings of 2.209 GWh and demand savings of 1.047 MW using revised unitary savings values, interactive effects factors, and a net-to-gross ratio (NTGR) of 1, assuming insignificant distortion effects.

4.4 NET-TO-GROSS RATIO LIHS offers no-cost energy assessments and implementation of energy efficiency measures for lowincome homeowners. Due to the nature of the measures proposed and the target customers, the distortion effects of the pro...

AI summary The LIHS program provides no-cost energy assessments and efficiency measures for low-income homeowners. The program's distortion effects are considered insignificant, leading to a net-to-gross ratio (NTGR) of 1.

Net energy savings Energy savings generated by energy efficiency measures after applying interactive effects and distortion effects. Net-to-gross ratio The ratio between the net energy savings and gross energy savings. Sampling error The a...

AI summary The document defines key terms related to energy savings and statistical sampling in the context of program tracking. It includes definitions for net energy savings, net-to-gross ratio, sampling error, sample size, and tracked savings, with references to ENSC's program tracking sheet and evaluation parameters.

Table 2: Distortion Effects and Net-to-Gross Ratio Distortion Effects 2012 Free-Ridership Level 37% Market Effects 13% (hhh((market(markeeffects) Net-to-Gross Ratio 0.76 The evaluation revealed that Performance Plus generated net energy sa...

AI summary Table 2 outlines distortion effects and the net-to-gross ratio for 2012, highlighting a free-ridership level of 37% and a net-to-gross ratio of 0.76. The evaluation also shows that the Performance Plus program achieved significant energy and demand savings in 2012.

4.4 NET-TO-GROSS RATIO The NTGR evaluation of the program is based on a self-report approach which relies on a series of questions designed to measure the influence of the program on the participants' decision whether to implement program-...

AI summary This section discusses the net-to-gross ratio (NTGR) evaluation methodology, which uses a self-report approach to assess the influence of a program on participants' decisions to implement energy efficiency measures. The NTGR calculation accounts for free-ridership and spillover effects using the equation: Net-to-gross ratio = (1 - % free-ridership + % spillover).

4.4.3 NTGR Calculation Using the free-ridership and spillover levels established, the NTGR value for the program is estimated at 0.76: $$NTGR = (1 - 37\% + 13\%) = 0.76$$ This value is applied to the gross savings.

AI summary The NTGR value for the program is calculated as 0.76, derived from free-ridership and spillover levels. This value is applied to the gross savings to determine net savings.

Table 38: Evaluation Results – Net Energy and Demand Savings Product Category Savings per EnerGuide Point DWHR Pipe Insulation Program mable Thermo stats 13-Watt CFLs Solar DHW ETS Forced Air Furnaces ETS Central Hydronic Systems ETS Room...

AI summary Table 38 presents the evaluation results of net energy and demand savings across various product categories, including Drain Water Heat Recovery (DWHR), Pipe Insulation, and Energy Storage Systems (ETS). The table includes gross and net energy and demand savings at both the meter and generator levels, factoring in Interactive Effects, Net-to-Gross Ratio (NTGR), and Line Loss Factor.

Program Energy Savings To calculate the net savings of RDI in 2012, Econoler reviewed the gross savings estimated by ENSC and conducted 100 on-site visits to establish the installation rates for each category of products installed through...

AI summary Econoler calculated the net savings of the Residential Direct Install (RDI) program in 2012 by reviewing ENSC's gross savings estimates and conducting on-site visits. Free-ridership and spillover effects were considered, resulting in an overall Net-to-Gross Ratio (NTGR) of 0.91 applied to the gross savings calculation.

Table 1: Distortion Effects and Overall Net-to-Gross Ratio Calculation Group of Participants Non-Low-Income Low-Income Free-Ridership Level 19% - Spillover Level 3% - NTGR 0.84 1.00 Proportion1 58% 42% Overall NTGR 0.91 The evaluation reve...

AI summary Table 1 presents distortion effects and the overall net-to-gross ratio (NTGR) calculation for different participant groups. The evaluation found that the Residential Direct Install (RDI) program achieved significant energy and demand savings in 2012.

KEY FINDINGS To calculate the net savings of Solar for 2012, Econoler first reviewed the parameters used for estimating the unitary savings values of each type of equipment installed and then completed some RETScreen simulations to validat...

AI summary Econoler evaluated the net savings of Solar in 2012 by reviewing parameters, conducting RETScreen simulations, and performing on-site visits. Due to low participation and energy savings, no survey was conducted, and the evaluator assumed zero free-ridership with a net-to-gross ratio (NTGR) of 1 for Solar.

4.3 NET-TO-GROSS RATIO To estimate the tracked net savings, ENSC used a Net to Gross Ratio (NTGR) of 0.7 (30% freeridership), based on participants' responses to a single screening question asked in the pre-approval application process. Th...

AI summary The document discusses the use of a Net-to-Gross Ratio (NTGR) of 0.7 to estimate tracked net savings by ENSC, based on a single screening question from pre-approval applications. However, due to a small number of participants and low energy savings, the Evaluator assumes zero free-ridership and an NTGR of 1 for the 2012 evaluation.

4.4 NET SAVINGS Since the NTGR for the program is 1, the net savings will be exactly the same as the gross savings. Net savings = Gross Evaluation Savings x NTGR Overall, the total net energy savings amount to 0.109 GWh at the meter, and 0...

AI summary The net savings for the program are calculated using an NTGR of 1, resulting in net savings equal to gross savings. The total net energy savings are reported as 0.109 GWh at the meter and 0.120 GWh at the generator.

2.4 NET-TO-GROSS RATIO Due to the special nature of this program, the short target period and the fact that it requires special involvement from the participant, the distortion effects of the LHLE are assumed to be negligible. Consequently...

AI summary The document assumes that the distortion effects of the LED Holiday Light Exchange (LHLE) program are negligible due to its special nature, short target period, and the need for special participant involvement, leading to an assumed Net-to-Gross Ratio (NTGR) of 1.

2.5 NET SAVINGS Since the NTGR for the LHLE is assumed to be 1, the net savings were calculated using the interactive effects only. Net savings = Gross Evaluation Savings × (1 + Interactive effects factor) The net energy savings calculated...

AI summary The net savings calculation for the LED Holiday Light Exchange (LHLE) uses an assumed NTGR of 1 and interactive effects. The net energy and demand savings for 2012 are reported as 0.317 GWh and 0.685 MW at the meter, and 0.349 GWh and 0.753 MW at the generator.

Table 6: Evaluation Results – Total Net Savings Energy Savings Total gross energy savings – at meter (GWh) 0.396 Interactive effects factor -19.80% NTGR 1.00 Total Net Energy Savings – at Meter (GWh) 0.317 Line loss factor 1.100 Total Net...

AI summary Table 6 presents evaluation results for total net energy and demand savings from a program. It includes gross and net energy savings at the meter and generator, interactive effects, line loss factors, and the net-to-gross ratio (NTGR). These metrics help assess the overall effectiveness of energy efficiency initiatives.

4.1 OBJECTIVE AND APPROACH OF THE IMPACT EVALUATION The impact evaluation for mail-in rebate is aimed at determining the gross and net savings of this component of BER for 2012. Both energy and demand savings were considered in the evaluat...

AI summary The impact evaluation for the mail-in rebate component of the Business Energy Rebates (BER) program in 2012 aimed to determine gross and net savings, considering energy and demand savings. The evaluation involved analyzing parameters such as savings methodology, equipment characteristics, and free-ridership, supported by tracking sheets, 50 on-site visits, and participant surveys.

4.4 NET-TO-GROSS RATIO The NTGR evaluation for the mail-in rebate is based on a self-report approach which relies on a series of questions designed to measure the influence of the program on participants' decision to implement program-elig...

AI summary The section discusses the Net-to-Gross Ratio (NTGR) evaluation for a mail-in rebate program, using a self-report approach to measure the influence of the program on participants' decisions to implement energy efficiency measures. The NTGR is calculated as (1 - % free-ridership), incorporating an assessment of free-ridership.

5.4 NET-TO-GROSS RATIO For the instant rebate approach, the NTGR evaluation includes the assessment of only one distortion effect: the free-ridership. Since the instant rebates are offered all year long through the program and so spillover...

AI summary The section discusses the Net-to-Gross Ratio (NTGR) evaluation for the instant rebate approach, focusing on the free-ridership distortion effect. The NTGR is calculated using the formula NTGR = (1 - % free-ridership), as spillover or market effects are not considered due to the year-round nature of the rebates.

Initial Gross Savings Adjusted Gross Savings Adjusted Gross Savings with Interactive Effects NTGR Net Savings Energy Savings Tracked Savings from ENSC 26.680 GWh 26.680 GWh 26.680 GWh 0.78 20.819 GWh Evaluation Results 26.804 GWh- 27.295 G...

AI summary The table presents energy and demand savings data from ENSC and evaluation results, including initial gross savings, adjusted gross savings, and net savings. It also includes the Net-to-Gross Ratio (NTGR), which measures the efficiency of rebate programs by comparing net savings to installed gross savings.

4 IMPACT EVALUATION This section presents the Evaluator's assessment of the actual impact (energy and peak demand savings) of Custom Retrofit in 2012. It first presents a short overview of the methodology used for impact evaluation and the...

AI summary This section evaluates the impact of the Custom Retrofit program in 2012, focusing on energy and peak demand savings. It outlines the methodology used and provides a detailed assessment of gross and net savings, including the determination of net-to-gross ratios.

Table 18: 2012 Net Demand and Energy Savings for Custom Retrofit Energy Savings – at the Meter (GWh) Energy Savings – at the Generator (GWh) Demand Savings – at the Meter (MW) Demand Savings – at the Generator (MW) Evaluation Results – Gro...

AI summary Table 18 provides data on energy and demand savings for the Custom Retrofit program in 2012, including gross and net savings at both the meter and generator levels, along with the Net-to-Gross Ratio (NTGR).

4 IMPACT EVALUATION This section describes the work that the Evaluator completed to assess the actual impact (energy and peak demand savings) of NC in 2012. Apart from a short overview of the methodology used for program impact evaluation,...

AI summary This section outlines the impact evaluation of new construction (NC) in 2012, detailing the methodology used to assess energy and peak demand savings. It includes an analysis of gross and net savings, as well as the determination of net-to-gross ratios (NTGRs) for net savings calculations.

4.1 OBJECTIVES AND APPROACH OF THE IMPACT EVALUATION The impact evaluation for NC is aimed at determining the gross and net savings of this program for 2012. Both energy and demand savings were examined in this evaluation. To do so, Econol...

AI summary The impact evaluation for NC in 2012 aimed to determine gross and net energy and demand savings. Econoler analyzed feasibility studies, design validation reports, and conducted on-site interviews to assess free-ridership. Gross savings were calculated using project-specific parameters, and the net savings were determined using the NTGR based on interview data.

4.4 NET-TO-GROSS RATIO The NTGR evaluation of the program is based on a self-report approach which relies on a series of questions designed to measure the influence of the program on participants' decision to implement program-eligible ene...

AI summary The net-to-gross ratio (NTGR) for the program is calculated as (1 – % free-ridership), based on self-reported data from participant interviews assessing the influence of the program on energy efficiency design decisions in newly constructed buildings.

4.5 NET SAVINGS The net savings for the program were estimated using the NTGR calculated in the previous section. The equation below was used to calculate the net savings. Net savings = Gross Evaluation Savings × NTGR The previous equation...

AI summary The net savings for the program were calculated using the NTGR from the previous section, with the formula 'Net savings = Gross Evaluation Savings × NTGR' applied to both demand and energy savings. The results are presented in a table.

5.1 OBJECTIVE AND APPROACH OF THE IMPACT EVALUATION This Impact Evaluation section aims at determining the gross and net savings of CDI for 2012. Both energy and demand savings are considered in this evaluation. To do so, the following par...

AI summary This section outlines the approach used to evaluate the impact of the Commercial Demand Initiative (CDI) in 2012, focusing on energy and demand savings. Econoler analyzed factors such as unitary savings values, installation rates, interactive effects, and free-ridership, using data from program tracking sheets, literature, on-site visits, and participant surveys to calculate net savings.

Table 36: Interactive Effects Factor for Hot Water Tank Wraps and Pipe Insulation Parameters % of Facilities Interactive Effects During Heating Period Interactive Effects During Cooling Period Electric heating with air conditioning 17% -10...

AI summary Table 36 presents the Interactive Effects Factor for Hot Water Tank Wraps and Pipe Insulation across different heating and cooling periods. It shows the percentage of facilities and corresponding interactive effects during these periods. The weighted interactive effects factor is calculated as -17.0%.

5.5.2 NTGR Calculation Using the free-ridership of 13 percent established for this evaluation, the NTGR value for CDI is estimated at 0.87.

AI summary The NTGR value for CDI is estimated at 0.87, calculated using a free-ridership rate of 13 percent established for this evaluation.

5.6 NET SAVINGS The net savings for CDI were estimated using the interactive effects factors and the NTGR value obtained above. The following equation was used to calculate the net savings. Net Savings = Gross Evaluation Savings × (1 + Int...

AI summary The net savings for the Commercial Demand Improvement (CDI) program were calculated using the interactive effects factors and the Net-to-Gross Ratio (NTGR) value. The calculation method involved multiplying the gross evaluation savings by (1 + Interactive Effects Factor) and NTGR, resulting in total net energy and demand savings of 9.886 GWh and 0.929 MW at the meter, and 10.717 GWh and 1.007 MW at the generator.

Table 38: Evaluation Results – Net Energy and Demand Savings by Product – CDI (Other Products) Ca f Pr du te t g or y o o c L E D Ex i t S ig n Fa t Ae uc e to ra r Lo -F lo w w S ho w er - he d a Pr R in e- se Sp y Va ra lve Ho W t te r T...

AI summary Table 38 presents evaluation results for net energy and demand savings by product under the Commercial Demand Improvement (CDI) program, showing varying percentages of savings across different products and a consistent Net-to-Gross Ratio (NTGR) of 0.87.

6.5 NET-TO-GROSS RATIO For this year's evaluation, Econoler did not plan any survey to measure distortion effects for the LED Blitz pilot that took place at the end of December. Due to the special nature of this pilot initiative, the NTGR...

AI summary Econoler did not conduct a survey to measure distortion effects for the LED Blitz pilot, which concluded in December. As a result, the Net-to-Gross Ratio (NTGR) for this year's evaluation is set at 1.

6.6 NET SAVINGS The net savings for the LED Blitz pilot were estimated using the interactive effects factors and the NTGR estimated at 1. The following equation was used to calculate the net savings. Net Savings = Gross Evaluation Savings...

AI summary The net savings for the LED Blitz pilot were calculated using an equation that incorporates gross evaluation savings, interactive effects factors, and the Net-to-Gross Ratio (NTGR). The total net energy and demand savings are reported as 2.795 GWh and 0.263 MW at the meter, and 2.980 GWh and 0.280 MW at the generator.