E-22023 DSM Programs Evaluation Reports
70 passages
DEFINITIONS Accuracy Reflects the proximity of measurements to the true value. Net savings Energy or peak demand savings that can be reliably attributed to a program. This includes effects such as free-ridership and spillover that negative...
AI summary The document defines key terms used in energy efficiency and program evaluation, including accuracy, net savings, net-to-gross ratio, non-sampling error, and peak coincidence factor, providing precise explanations for each.
1.1 Impact Evaluation Objectives and Scope The impact evaluation activities were aimed at determining: - › Gross electrical energy and peak demand savings at the meter and at the generator - › Net-to-gross ratios (NTGRs), including free-ri...
AI summary The impact evaluation activities aimed to assess electrical energy and peak demand savings, net-to-gross ratios, effective useful life of program measures, and greenhouse gas emissions reductions. Two types of evaluations were conducted: comprehensive and condensed. Comprehensive evaluations were performed every three years for most program components, except for those with stable parameters or small savings contributions.
2.1.6 Net Savings Analysis
AI summary This section introduces the Net Savings Analysis, a critical component in evaluating the financial impact and effectiveness of energy efficiency and demand-side management initiatives within the regulatory proceeding.
struction, as well as Business Energy Rebates Instant Rebates and Application Rebates. In addition, the unconverted D assessment spillover from the past evaluation was used for Home Energy Assessment. In 2023, the Evaluator reassessed the...
AI summary The Evaluator reassessed the Strategic Energy Management NTGR assumption, concluding it remains valid. Free-ridership and spillover levels were not established for low-income and Mi'kmaw participants due to nil expectations. The evaluation also references past Home Energy Assessments and Business Energy Rebates.
3 Impact Evaluation Results This section presents an analysis of the impact evaluation results for all program components by comparing 2023 tracked energy and peak demand savings with evaluated energy and peak demand savings. Evaluated NTG...
AI summary This section analyzes the impact evaluation results for program components by comparing tracked energy and peak demand savings in 2023 with evaluated savings. It also presents evaluated NTGRs, lifetime energy savings, and GHG emission reductions.
3.1 Individual Impact Evaluation Results [Table](#page-24-0) 5 and [Table](#page-25-0) 6 below respectively list the evaluated energy and peak demand savings as well as the corresponding savings tracked by EOne for each program component o...
AI summary This section presents the results of individual impact evaluations for energy and peak demand savings from 2023 programs. Net savings are calculated using the net-to-gross ratio, and lifetime energy savings are based on the effective useful life of efficiency measures. Line loss factors are referenced from a 2014 study submitted to the Nova Scotia Utility and Review Board.
b Subtotal NTGR values represent average values for the Residential and BNI portfolios. The Portfolio Total NTGR value represents an average value for all programs. c Evaluated gross and net peak demand savings at the generator include 0.0...
AI summary The text provides context on the evaluation of savings from various programs, noting that the net-to-gross ratio (NTGR) values are averages for different portfolios and excludes the Demand Response (DR) Program. It also mentions the inclusion of specific pilot programs in the evaluation of peak demand savings.
Green Heat - › Green Heat participation levels decreased by 11% compared to 2022, particularly for MSHPs (22% decrease). Conversely, MSHP installations incented through HEA increased over the same period (116% increase) due in large part t...
AI summary Green Heat participation levels dropped by 11% in 2023, especially for MSHPs, but installations incentivized by HEA increased significantly. Free-ridership for Green Heat measures rose, particularly for MSHPs. Net energy and peak demand savings were lower than EOne's tracked savings due to updated NTGRs for biomass, MSHP, and demand reduction measures.
3.2 Net-to-gross Ratio The NTGRs outlined in [Table](#page-30-0) 7 below were applied to gross savings to estimate net savings. NTGRs were established based on the free-ridership levels and spillover in some cases. Based on the established...
AI summary The document discusses the Net-to-gross Ratio (NTGR) used to estimate net savings from energy efficiency programs. NTGR is calculated using free-ridership and spillover levels, with the formula NTGR = (1 – % Free-ridership + % Spillover). The methodology relies on self-reporting and examples are provided in Appendix III.
APPENDIX III NTGR Calculations This appendix provides an example of net-to-gross ratio (NTGR) calculations. The example details the calculations of participant free-ridership levels and resulting NTGR for GH Biomass. The Evaluator used a s...
AI summary This appendix provides an example of net-to-gross ratio (NTGR) calculations, focusing on participant free-ridership levels and resulting NTGR for GH Biomass. The same approach was used for other program components, with more details available in individual program evaluation reports.
[Table](#page-70-0) 2 presents the participation levels, net-to-gross ratios (NTGRs), evaluated gross and net savings at the generator, annual GHG emission reductions, as well as effective useful life (EUL) values for each program componen...
AI summary Table 2 details participation levels, net-to-gross ratios, evaluated gross and net savings, annual GHG emission reductions, and effective useful life values for the 2023 Residential Efficient Product Rebates program.
Table 30: 2023 Instant Savings Spillover Levels Product Category Spillover Level LED Lamps 9% LED Fixtures 2% All Other Products - 8.3.3 Net-to-Gross Ratio Calculations
AI summary Table 30 outlines the 2023 Instant Savings Spillover Levels for various product categories, including LED Lamps and LED Fixtures. Section 8.3.3 discusses Net-to-Gross Ratio Calculations, which are relevant to energy efficiency programs and cost recovery mechanisms.
The NTGR is calculated using the following equation: NTGR = (1 – % Free-ridership + % Spillover) Using this equation, the NTGRs for LED lamps and fixtures were estimated at 0.50 and 0.53 respectively, as presented in [Table](#page-113-2) 3...
AI summary The NTGR is calculated using the equation (1 – % Free-ridership + % Spillover). For LED lamps and fixtures, NTGRs were estimated at 0.50 and 0.53, respectively. For other products, an NTGR of 1.00 was used due to difficulties in assessing free-ridership and spillover levels for non-LED products.
Net savings are defined as the changes in energy use that are attributable specifically to Instant Savings. Net program component impacts were estimated by applying the overall NTGR to gross savings, as exemplified in the following equatio...
AI summary Net savings from the Instant Savings program are calculated using the Net Total Gross Reduction (NTGR) applied to gross savings, resulting in 6,331 tonnes of CO2 eq in annual GHG emission reductions.
Table 1: 2023 ARet Corrected Tracked Savings Program Component Results Value Tracked by EOne Corrected Tracked Value Relative Difference Value Unit Value Unit Value ARet Gross Energy Savings at the Generator 2.773 GWh 2.773 GWh -0.03% Gros...
AI summary Table 1 presents the 2023 ARet Corrected Tracked Savings, showing minimal differences between tracked and corrected values. Minor discrepancies are attributed to incorrect equations, net-to-gross ratios, and rounding methods used by the Evaluator.
Program Tracked and Evaluated Savings [Table](#page 1-1) 3 below compares EOne tracked energy and peak demand savings to evaluated savings at the generator. It also includes the realization rate, representing the ratio of evaluated net sav...
AI summary The table compares energy and peak demand savings tracked by EOne to evaluated savings at the generator, including realization rates and NTGRs, which are rounded averages of net savings divided by gross savings.
EfficiencyOne (EOne), an independent, non-profit organization, is responsible for helping Nova Scotians improve the energy efficiency of their homes and workplaces by designing, marketing, and delivering demand-side management (DSM) for No...
AI summary EfficiencyOne (EOne) is an independent non-profit organization that delivers demand-side management (DSM) programs through the Efficiency Nova Scotia (ENS) franchise. EOne's 2023 DSM program portfolio includes residential and BNI programs, with an evaluation report focusing on the Existing Residential program and its components. The evaluation involves reviewing baseline definitions, savings calculation methodologies, and net-to-gross ratios (NTGRs).
Tracking Sheet Audit Prior to conducting the savings calculation review, the Evaluator performed an audit of the final 2023 tracking sheet to ensure it was complete and the entered data were consistent. The detailed protocol used for the t...
AI summary The Evaluator conducted an audit of the final 2023 tracking sheet to ensure completeness and data consistency. Additional satisfaction questions were added to assess the NTGR as part of a participant survey.
Table 18: 2023 HEA Participant Spillover Level Measure Number of Participants Generating Spillover Average Participant Spillover Level All Measures 11 1% 4.3.3 Net-to gross Ratio Calculation
AI summary Table 18 presents the 2023 HEA Participant Spillover Level, showing that 11 participants generated an average spillover level of 1%. Section 4.3.3 discusses the calculation of the Net-to-Gross Ratio.
Table 19: 2023 HEA NTGR Measure Free-ridership Participant Spillover NTGR Energy Efficiency Upgrades 17% 0.84 Solar PV Measures 26% 1% 0.75 4.3.4 Unconverted Assessment Spillover
AI summary Table 19 presents the 2023 HEA NTGR, showing energy efficiency upgrades and solar PV measures with their respective free-ridership, participant spillover, and NTGR values. Section 4.3.4 discusses unconverted assessment spillover, indicating potential impacts of energy efficiency programs on non-participants.
Table 22: Evaluated 2023 HEA Net Energy and Peak Demand Savings 17.910 - 0.75 13.432 1.095 - 14.708 25.0 (1.814) - 0.75 (1.361) 1.095 - (1.490) 21.0 27.928 1.776 - 23.787 - (0.081) 25.966 23.1 367.707 (31.292) 600.938 - (1.617) 7.363 - 0.7...
AI summary Table 22 presents the evaluated 2023 HEA (Home Energy Assessment) net energy and peak demand savings. The table includes various numerical values and calculations, indicating the performance of energy efficiency programs, such as EPI (Efficient Product Installation), and metrics like NTGR (Net-to-Gross Ratio) and CGH (Clean Green Homes).
9.3.2 Net-to-gross Ratio Calculation The NTGR was calculated using the following equation. $$NTGR = (1 - \% Free-ridership)$$ Using the free-ridership level established for each measure category, the Evaluator calculated the NTGR values pr...
AI summary The Net-to-Gross Ratio (NTGR) is calculated using the formula (1 - % Free-ridership), with free-ridership levels established for each measure category. The Evaluator used these levels to calculate the NTGR values presented in Table 33.
Table 33: 2023 Green Heat NTGRs Measure Free-ridership NTGR MSHPs 48% 0.52 Biomass and Solar 47% 0.53 Demand Reduction 9% 0.91 CASHPs and GSHPs 33% 0.67 9.3.3 Evaluated Net Savings
AI summary Table 33 presents the 2023 Green Heat Net-to-Gross Ratios (NTGRs) for various measures, including MSHPs, Biomass and Solar, Demand Reduction, and CASHPs and GSHPs. The table also includes free-ridership percentages and NTGR values for each measure. Section 9.3.3 discusses the evaluated net savings from these initiatives.
Net savings are defined as the energy use reductions specifically attributable to Green Heat. Net savings were estimated by applying the NTGRs listed above to the evaluated gross savings using the following equation: Net Savings = Gross Sa...
AI summary Net savings from Green Heat are calculated using the Net-to-Gross Ratio (NTGR) applied to gross savings, resulting in 1,611 tonnes of CO2 eq in annual GHG emission reductions.
Table 35: Comparison of 2023 Green Heat Tracked and Evaluated Savings at the Generator Gross Savings NTGR Net Savings Realization Value Unit Value Unit Rate Energy Savings Tracked Savings by EOne 5.561 GWh 0.60 3.352 GWh Evaluation Results...
AI summary Table 35 compares tracked and evaluated energy and peak demand savings from the 2023 Green Heat program. It includes gross savings, net savings, and the net-to-gross ratio (NTGR) for both energy and peak demand, with realization rates provided for energy savings.
14.3 Net Savings The Evaluator determined the net energy and peak demand savings, i.e. the electrical energy and peak demand savings that can be reliably attributed to a program component, by estimating the NTGR. In the case of EPI, the NT...
AI summary The Evaluator calculated net energy and peak demand savings by estimating the NTGR, taking into account free-ridership and participant spillover effects, particularly in the context of the Efficient Product Installation program.
Table 53: 2023 EPI Participant Spillover Levels Average Participant Spillover Level Margin of Error Low-income Participants All Products 0% N/A Non-low-income Participants All Products 10% 7.5% 14.3.3 Net-to-gross Ratio Calculation
AI summary Table 53 presents the 2023 EPI Participant Spillover Levels, showing that low-income participants had 0% average spillover, while non-low-income participants had 10% with a 7.5% margin of error. Section 14.3.3 discusses the Net-to-gross Ratio Calculation.
15 EPI Key Findings and Recommendations As mentioned previously, the main objectives of the 2023 EPI evaluation were as follows: › Calculate gross and net EPI results, namely electrical first-year and lifetime energy savings, peak demand s...
AI summary The 2023 EPI evaluation found that net electrical energy and peak demand savings exceeded targets, with participation increasing by 16% compared to 2022. LED lamps and smart thermostats were the most popular measures, and the differences between evaluated and tracked savings were minimal due to updated NTGRs.
Table 57: 2023 MHEEP Evaluation Approach Evaluation Objectives Research Questions Methodology Calculate gross results › Are the data in the tracking sheet complete, accurate, and consistent? › What are the heating and building envelope mea...
AI summary This section outlines the evaluation approach for the 2023 MHEEP, focusing on calculating gross and net results through tracking sheet audits, unitary savings reviews, and calculations using evaluation results and a net-to-gross ratio of 1.
Table 67: 2023 AMH Evaluation Approach Evaluation Objectives Research Questions Methodology Calculate gross results › Are the data in the tracking sheet complete, accurate, and consistent? › Using the adjustment ratio from the 2022 evaluat...
AI summary Table 67 outlines the 2023 evaluation approach for the Affordable Multifamily Housing (AMH) program. It includes objectives such as calculating gross and net results, research questions regarding data accuracy and energy savings, and methodologies like tracking sheet audits and calculations using a Net To Gross Ratio (NTGR) of 1.
22.3 Net Savings The Evaluator determined the net energy and peak demand savings, i.e. the electrical energy and peak demand savings that can be reliably attributed to a program component, by estimating the net-to-gross ratio (NTGR). More...
AI summary The Evaluator calculated net energy and peak demand savings for the AMH program by using a net-to-gross ratio (NTGR) of 1.00, as free-ridership and spillover effects were considered negligible due to the program's target audience of non-profits and low-income housing owners.
CONCLUSION [Table](#page-150-0) 82 presents the participation levels, net-to-gross ratios (NTGRs), evaluated gross and net savings at the generator, annual GHG emission reductions, as well effective useful life (EUL) values for each progra...
AI summary Table 82 outlines participation levels, net-to-gross ratios, evaluated savings, GHG emission reductions, and effective useful life values for various program components and the Existing Residential category.
Table 1: Summary of 2023 New Residential Program Evaluation Program Component Evaluation Type Methodology Impact Process Market NHC Condensed › Tracking sheet audit › Use of the net-to-gross ratio (NTGR) results from 2020 › Calculations us...
AI summary The document provides a summary of the 2023 New Residential Program Evaluation, focusing on the NHC program component. It outlines the evaluation methodology, including tracking sheet audits, the use of the net-to-gross ratio from 2020, and avoided greenhouse gas emission calculations.
[Table](#page-101-2) 2 presents the participation levels, Net-to-gross ratios (NTGRs), evaluated gross and net savings at the generator, annual GHG emission reductions, as well as effective useful life (EUL) values for New Residential.
AI summary Table 2 provides data on participation levels, Net-to-gross ratios, evaluated gross and net savings, annual GHG emission reductions, and effective useful life values for New Residential programs.
Table 3: Comparison of 2023 NHC Tracked and Evaluated Savings at the Generator Gross Savings NTGR Net Savings Realization Rate Value Unit Value Value Unit Value Energy Savings Tracked Savings by EOne 5.868 GWh 0.91 5.340 GWh 99% Evaluation...
AI summary Table 3 compares the tracked and evaluated savings from the 2023 New Home Construction (NHC) program, including gross savings, net-to-gross ratio (NTGR), net savings, and realization rates for energy and peak demand savings.
Table 6: 2023 NHC Evaluation Approach Evaluation Objectives Research Questions Methodology Calculate gross results › Are the data in the tracking sheet complete, accurate, and consistent? › Were the savings correctly and consistently calcu...
AI summary The document outlines the evaluation approach for 2023 New Home Construction (NHC), focusing on calculating gross and net results through tracking sheet audits and using the net-to-gross ratio (NTGR) results from 2020. It includes research questions related to data accuracy, savings calculations, and GHG emissions.
3.3.3 Net-to-gross Ratio Calculation The NHC NTGR is calculated using the following equation. $$NTGR = (1 - \% Free - ridership + \% Spillover [Market Effects])$$ By applying the free-ridership and spillover levels discussed in the previou...
AI summary The Net-to-gross Ratio (NTGR) for New Home Construction (NHC) is calculated using the formula NTGR = (1 - % Free-ridership + % Spillover [Market Effects]). Based on free-ridership and spillover levels from previous subsections, the estimated NTGR value is 0.90.
Table 13: 2023 NHC NTGR Free-ridership Participant Spillover NTGR 24% 14% 0.90 3.3.4 Evaluated Net Savings
AI summary The document presents Table 13, which outlines the 2023 NHC NTGR with free-ridership at 24%, participant spillover at 14%, and a net-to-gross ratio of 0.90. It also references the section on 'Evaluated Net Savings' in the proceeding.
Net savings represent the savings that can be reliably attributed to a program component. For NHC, net savings are calculated by applying the NTGR calculation above to the evaluated gross savings as exemplified in the following equation. $...
AI summary Net savings are calculated using the NTGR formula applied to gross savings, resulting in 2,915 tonnes of CO2 eq in annual GHG emission reductions for NHC. This calculation is used for both energy and peak demand savings.
Table 1: Summary of 2023 Efficient Product Rebates Program Evaluation Program Evaluation Type Component Methodology Impact Process Market BER Condensed › Tracking sheet audit › Effective useful life (EUL) update › Calculations using evalua...
AI summary The 2023 Efficient Product Rebates Program Evaluation summarizes the performance of the BER program, using methodologies such as tracking sheet audits, effective useful life updates, and avoided greenhouse gas emission calculations. It also references the net-to-gross ratio results from previous years.
[Table](#page-133-0) 2 presents the participation levels, NTGRs, evaluated gross and net savings at the generator, annual GHG emission reductions, as well EUL values for each service and Efficient Product Rebates as a whole.
AI summary Table 2 provides an overview of participation levels, net-to-gross ratios, evaluated gross and net savings, annual GHG emission reductions, and effective useful life values for each service and Efficient Product Rebates as a whole.
Table 3: Comparison of 2023 Tracked and Evaluated Savings at the Generator Gross Savings Net Savings Realization Rate Value Unit Value Unit Energy Savings Tracked Savings by EOne 48.166 GWh 0.81 38.907 GWh 100% Evaluation Results 48.045 GW...
AI summary Table 3 compares 2023 tracked and evaluated energy and peak demand savings at the generator level. Tracked savings by EOne and evaluation results are presented in GWh and MW, with realization rates and net-to-gross ratios (NTGR) noted. Different NTGRs apply to Application Rebates and Instant Rebates.
3.3.3 Net-to-gross Ratio Calculation The NTGR is calculated using the following equation. NTGR = (1 – % Free-ridership + % Spillover) Using the free-ridership and spillover levels established for Application Rebates, the Evaluator calculat...
AI summary The document discusses the calculation of the Net-to-gross Ratio (NTGR) using the formula NTGR = (1 – % Free-ridership + % Spillover). The calculation is based on free-ridership and spillover levels established for Application Rebates, with the result presented in Table 12.
Table 12: 2023 Application Rebates NTGR Measure Category Free-ridership Spillover NTGR All 26% 0% 0.74 3.3.4 Evaluated Net Savings
AI summary The text presents Table 12, which outlines the 2023 Application Rebates NTGR, including free-ridership, spillover, and NTGR percentages. It also references Section 3.3.4, which evaluates net savings.
Net savings are defined as the changes in energy use attributable specifically to Application Rebates. Net savings were estimated by applying the above NTGR to the evaluated gross savings, as illustrated in the following equation. Net Savi...
AI summary Net savings from Application Rebates are calculated using the Net to Gross Evaluation (NTGR) applied to evaluated gross savings. This resulted in 4,658 tonnes of CO2 eq in annual GHG emission reductions.
Table 13: Evaluated 2023 Application Rebates Net Energy and Peak Demand Savings Measure Category Agriculture Commercial Kitchen Compressed Air DHW HVAC Lighting Energy Savings Gross Energy Savings – at the Meter (GWh) 0.185 0.011 0.001 0.0...
AI summary Table 13 presents the evaluated 2023 application rebates for net energy and peak demand savings across various measure categories. The table includes data on gross and net energy savings, net-to-gross evaluation (NTGR), line loss factors, and lifetime energy savings for each category. This information is used to assess the effectiveness of energy efficiency programs.
Table 18: 2023 Instant Rebates Free-ridership Measure Category Average Distributor Influence Level (from distributor interviews) Free-ridership Level (from participant survey) Overall Free-ridership Level Margin of Error LED Linear Fixture...
AI summary Table 18 presents free-ridership levels for instant rebates in 2023, showing the influence of distributors and participant survey results for LED lighting measures. The data indicates varying degrees of free-ridership across different categories, with margin of error provided for each.
The NTGR is calculated using the following equation: NTGR = (1 – % Free-ridership) 13 At the time of writing, 2023 data were not yet available. The Nova Scotia-specific factor was obtained from Nova Scotia Power's 2022 total system emissio...
AI summary The document explains the calculation of the Net to Gross Evaluation (NTGR) using the formula NTGR = (1 – % Free-ridership). It references Nova Scotia Power's 2022 emissions data and electricity generation figures from multiple sources to establish NTGRs for different measure categories.
Table 19: 2023 Instant Rebates NTGRs Measure Free-ridership NTGR LED Linear Fixtures 14% 0.86 LED Linear Lamps 27% 0.73 LED Outdoor Fixtures 18% 0.82 Other Measures 0% 1.00 4.3.3 Evaluated Net Savings
AI summary Table 19 presents the 2023 Instant Rebates NTGRs for various energy efficiency measures, including LED Linear Fixtures, LED Linear Lamps, LED Outdoor Fixtures, and Other Measures, along with their respective free-ridership rates and NTGR values. Section 4.3.3 discusses the evaluated net savings.
Net savings are defined as the changes in energy use that are specifically attributable to Instant Rebates. Net savings were estimated by applying the overall NTGR presented above to evaluated gross savings as exemplified in the following...
AI summary The text defines net savings as energy use changes attributable to Instant Rebates and calculates net energy savings using the Net to Gross Evaluation (NTGR) method, resulting in 16,763 tonnes of CO2 eq in annual GHG emission reductions.
Table 20: Evaluated 2023 Instant Rebates Net Energy and Peak Demand Savings Measure Category LED Linear Fixtures LED Linear Lamps LED Outdoor Fixtures LED Directional and Architectural Fixtures Outdoor Motion Sensors Indoor Occupancy /Moti...
AI summary Table 20 presents the evaluated 2023 Instant Rebates Net Energy and Peak Demand Savings across various measures. It includes gross and net energy savings, line loss factors, effective useful life, and net lifetime energy savings, as well as peak demand savings at the meter and generator levels.
CONCLUSION Table 23 presents the participation levels, net-to-gross ratios (NTGRs), evaluated gross and net savings at the generator, annual GHG emission reductions, as well effective useful life (EUL) values for each service and Efficient...
AI summary Table 23 outlines participation levels, net-to-gross ratios, evaluated savings, GHG emission reductions, and effective useful life values for various services and the Efficient Product Rebates program.
Table 23: Overall 2023 Efficient Product Rebates Participation and Evaluated Savings Participa ation Level Gros s Savings NTGR Net Savings Value Unit Value Unit Value Value Unit Application Rebates • Energy Savings 227 Projects 11.406 GWh...
AI summary Table 23 presents data on the participation levels and evaluated savings from efficient product rebates in 2023, including energy savings, peak demand savings, GHG emission reductions, and EUL values for both application rebates and instant rebates. The NTGR (Net to Gross Evaluation) ratio is used to calculate net savings from gross savings.
Table 1: 2023 Application Rebates Corrected Tracked Savings Program Component Results Value Tracked by EOne Corrected Tracked Value Relative Difference Value Unit Value Unit Value Application Rebates Gross Energy Savings – at the Generator...
AI summary Table 1 shows the corrected tracked savings for the 2023 Application Rebates, with minimal differences in net energy and demand savings due to the correction of the net-to-gross ratio (NTGR) for six individual measures.
The differences between tracked and corrected peak demand savings at the generator were larger for both the gross and net values with differences of 24% and 23% respectively. These were due to many entries having inconsistent interactive e...
AI summary The text highlights discrepancies between tracked and corrected peak demand savings at the generator level, with differences of 24% and 23% for gross and net values, respectively. These discrepancies were caused by inconsistent input factors and errors in the 2020-2022 Measure Assessment (MA).
Evaluation Approach The 2023 evaluation was aimed at calculating program component gross and net results, namely electrical first-year and lifetime energy savings, peak demand savings, as well as avoided greenhouse gas (GHG) emissions. For...
AI summary The 2023 evaluation aimed to calculate program component gross and net results, including electrical first-year and lifetime energy savings, peak demand savings, and avoided greenhouse gas emissions. A process evaluation was also conducted for Custom Retrofit.
Program Performance Table 2 below presents the participation levels, average net-to-gross ratios (NTGRs), evaluated gross and net savings at the generator, annual GHG emission reductions, as well as average EUL values for each program comp...
AI summary Table 2 provides data on program participation levels, net-to-gross ratios, gross and net savings, GHG emission reductions, and average effective useful life values for each program component and Custom Incentives as a whole.
EfficiencyOne (EOne), an independent, non-profit organization, is responsible for helping Nova Scotians improve the energy efficiency of their homes and workplaces by designing, marketing, and delivering demand-side management (DSM) for No...
AI summary EfficiencyOne (EOne), a non-profit organization, delivers energy efficiency programs in Nova Scotia through the Efficiency Nova Scotia (ENS) franchise. EOne's 2023 Custom Incentives program, including Custom and Strategic Energy Management (SEM) components, was evaluated by Econoler. The evaluation focuses on baseline definitions, savings calculation methodologies, parameter values, and net-to-gross ratios.
[Table](#page-21-1) 13 presents an example of how the true-up adjustment was applied to the gross energy savings of a multiyear project completed in 2023.
AI summary Table 13 illustrates the application of a true-up adjustment to the gross energy savings of a multiyear project completed in 2023, providing insight into how adjustments are made to reflect actual energy savings.
The Evaluator determined net energy and peak demand savings, i.e. the electrical energy and peak demand savings that can be reliably attributed to a service, by estimating a NTGR. More precisely, the NTGR includes effects such as free-ride...
AI summary The Evaluator calculated net energy and peak demand savings for Retrofit projects by determining a Net-to-Gross Ratios (NTGR), which accounts for free-ridership and spillover effects. Three distinct NTGRs were determined for the three Retrofit project categories, as described in Table 16.
Table 16: 2023 NTGR Approach per Retrofit Project Category Retrofit Project Category Number of Projects Completed in 2023 NTGR Methodology Sample Size (Unique Participant Interviews) Regular Retrofit 54 Free-ridership and spillover were me...
AI summary Table 16 outlines the 2023 NTGR approach for different retrofit project categories, including Regular Retrofit, Solar PV, and Compressed Air Leak Audit. It details the number of projects completed, the NTGR methodology used, and the sample size for participant interviews.
4.3.3 Net-to-gross Ratio Calculation The NTGR was calculated using the following equation: NTGR = (1 – % Free-ridership + % Participant Spillover) [Table](#page-25-1) 18 outlines the free-ridership and spillover levels established for Retr...
AI summary The Net-to-gross Ratio (NTGR) is calculated using the equation NTGR = (1 – % Free-ridership + % Participant Spillover). Table 18 outlines free-ridership and spillover levels for Retrofit, along with corresponding NTGR values for each project category.
5.3.2 Net-to-gross Ratio Calculation The NTGR is calculated using the following equation: $$NTGR = (1 - \% Free-ridership)$$ [Table](#page-33-0) 23 outlines the free-ridership level established for New Construction along with the NTGR valu...
AI summary The net-to-gross ratio (NTGR) is calculated as 1 minus the percentage of free-ridership. The free-ridership level for New Construction is outlined in Table 23, along with the resulting NTGR value. Participant spillover is not included in the calculation, as it was assumed to be zero.
6.3.1 Net-to-gross Ratio Calculation The NTGR was calculated using the following equation: NTGR = (1 – % Free-ridership + % Participant Spillover) [Table](#page-38-1) 28 outlines the free-ridership and spillover levels established for Buil...
AI summary The Net-to-gross Ratio (NTGR) is calculated using the formula (1 – % Free-ridership + % Participant Spillover). Table 28 provides the free-ridership and spillover levels for Building Optimization and the resulting NTGR value.
[Table](#page-168-0) 2 presents the participation levels, net-to-gross ratios (NTGRs), evaluated gross and net savings at the generator, annual GHG emission reductions, as well effective useful life (EUL) values for the Direct Installation...
AI summary The text discusses the Direct Installation program, including participation levels, net-to-gross ratios, evaluated savings, GHG emission reductions, and effective useful life values. It mentions a condensed impact evaluation for the Commercial Direct Install (CDI) pilot.
Table 2: Overall 2023 Direct Installation Participation and Evaluated Savings 2 Participation Level Gross Savings NTGR Net Savings Value Unit Value Unit Value Value Unit Energy Savings 467 Projects 9.180 GWh 0.81 7.451 GWh Lifetime Energy...
AI summary Table 2 outlines the 2023 Direct Installation Participation and Evaluated Savings, including energy savings, lifetime energy savings, peak demand savings, and annual GHG emission reductions. The table also provides the Net-to-Gross Ratio (NTGR) for SBES, which is the ratio of net savings to gross savings.
INTRODUCTION EfficiencyOne (EOne), an independent, non-profit organization, is responsible for helping Nova Scotians improve the energy efficiency of their homes and workplaces by designing, marketing, and delivering demand-side management...
AI summary EfficiencyOne (EOne), a non-profit organization, manages demand-side management (DSM) programs through the Efficiency Nova Scotia (ENS) franchise. The report evaluates the Direct Installation program, specifically the Small Business Energy Solutions (SBES) component, focusing on baseline definitions, savings calculation methodologies, parameter values, and net-to-gross ratios (NTGRs).
4.3.3 Net-to-gross Ratio Calculation The NTGR for SBES was calculated using the following equation. NTGR = (1 – % Free-ridership + % Participant Spillover) Based on the established DIY and Audit path free-ridership levels, the NTGRs were e...
AI summary The Net-to-Gross Ratio (NTGR) for the SBES program was calculated using the formula (1 – % Free-ridership + % Participant Spillover). The NTGRs were estimated at 0.88 for the Audit path and 0.80 for the DIY path, with the CDI pilot assumed to have an NTGR of 1.00.
4.3.4 Evaluated Net Savings Net savings are defined as the energy use reductions that are specifically attributable to SBES. Program component net impacts were estimated by applying the above NTGRs to the revised gross savings by using the...
AI summary Net savings are calculated as the product of revised gross savings and the net-to-gross ratio (NTGR), resulting in 4,112 tonnes of CO2 eq in annual GHG emission reductions from the SBES program.
Table 24: Comparison of 2023 SBES Tracked and Evaluated Savings at the Generator 13 Gross Savings NTGR Net Savings Realization Rate Value Unit Value Unit Energy Savings Tracked Savings by EOne 8.915 GWh 0.86 7.629 GWh 98% Evaluation Result...
AI summary Table 24 compares the 2023 SBES tracked and evaluated savings at the generator. Tracked savings by EOne show 8.915 GWh of energy savings and 1.825 MW of peak demand savings, while evaluation results indicate slightly higher savings of 9.180 GWh and 1.840 MW, respectively. The net-to-gross ratio (NTGR) is used to calculate net savings from gross savings.