E-22021 DSM Evaluation Reports
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Evaluated savings Gross and net energy or peak demand savings calculated by the Evaluator using the parameters (unitary savings values, installation rates, interactive effects, net-to-gross ratio, etc.) validated or measured during the eva...
AI summary The text outlines the evaluation process for energy efficiency programs, including data collection, impact evaluation, net-to-gross ratio, lifetime energy savings, and greenhouse gas emission reductions. It also covers portfolio performance, market evolution, and evaluation research related to market transformation and demand response pilots.
3 IMPACT EVALUATION RESULTS This section presents an analysis of the impact evaluation results for all program components by comparing 2021 tracked energy and peak demand savings with evaluated energy and peak demand savings. Evaluated net...
AI summary This section presents the impact evaluation results for program components by comparing 2021 tracked energy and peak demand savings with evaluated energy and peak demand savings. It also includes evaluated net-to-gross ratios, lifetime energy savings, and GHG emission reductions.
3.1 Individual Impact Evaluation Results [Table](#page-27-0) 6 and [Table](#page-28-0) 7 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 The section presents the results of individual impact evaluations for energy and peak demand savings from 2021 programs. Net savings are calculated using the net-to-gross ratio (NTGR), and lifetime energy savings are based on the effective useful life (EUL) of efficiency measures. Line loss factors were submitted to the Nova Scotia Utility and Review Board (NSUARB) as part of a 2014 study.
Table 7: Comparison of 2021 Evaluated and Tracked Peak Demand Savings at the Generator Tracked Results Evaluated Results10 DSM Program Program Component Annual Gross Savings (MW) Annual Net Savings (MW) Annual Gross Savings (MW) NTGR Annua...
AI summary Table 7 compares the evaluated and tracked peak demand savings for various demand-side management (DSM) programs in 2021, including residential and BNI programs, with metrics such as annual gross and net savings, net-to-gross ratio (NTGR), and net realization rates.
Custom The key findings of the Custom impact evaluation overall were as follows: - › Custom net electrical energy and peak demand savings fell short of targets in 2021. - › Compared to 2020, Custom participation increased in 2021 due in pa...
AI summary The Custom impact evaluation found that energy and peak demand savings fell short of targets in 2021, though participation increased. Adjustments were made to savings estimates, and free-ridership trends were noted. The Retrofit and New Construction evaluations highlighted successful client-led M&V approaches and design influences, while the OEM Operational Demand Savings Pilot showed positive results but opportunities for improvement in program guidelines and M&V methodologies.
3.2 Net-to-gross Ratio The NTGRs outlined in [Table](#page-34-1) 8 below were applied to gross savings to estimate net savings. NTGRs were established based on the levels of free-ridership and, in some cases, spillover. Based on the establ...
AI summary The net-to-gross ratio (NTGR) is calculated using free-ridership and spillover levels to estimate net savings from energy efficiency programs. The calculation is based on a self-reporting approach and uses a formula that subtracts the percentage of free-ridership and adds the percentage of spillover from 1. Appendix III provides examples of these calculations for the 2021 evaluation.
APPENDIX III NTGR CALCULATIONS This appendix provides some examples to illustrate the Evaluator's calculations of free-ridership, participant spillover, and net-to-gross ratio values in the 2021 evaluation. To demonstrate how to apply the...
AI summary This appendix provides examples of the Evaluator's calculations for free-ridership, participant spillover, and net-to-gross ratios in the 2021 evaluation, using lighting measures from the SBES do-it-yourself path as an example. Similar methods were applied to other program components, with more details available in individual evaluation reports.
DEFINITIONS Accuracy Reflects the proximity of measurements to the true value. Net-to-gross ratio The ratio of net energy savings to gross energy savings. Non-sampling error Errors arising during the course of all survey activities other t...
AI summary The document defines several key terms related to energy efficiency and measurement accuracy, including net-to-gross ratio, peak demand savings, precision, and random sampling error, among others. These definitions are essential for understanding how energy savings are measured and evaluated.
Instant Savings Findings and Recommendations This subsection presents the key findings and recommendations from the Instant Savings evaluation. 2021 Instant Savings-Finding: Instant Savings net electrical energy savings and peak demand sav...
AI summary The 2021 Instant Savings program exceeded its energy and peak demand savings targets by 35% and 36%, respectively. Despite the challenges of the pandemic, participation remained high. Non-lighting products contributed significantly to savings, while free-ridership and spillover effects for LED lamps and fixtures increased. The report includes figures and tables summarizing performance metrics and NTGRs.
Table 4: 2021 Instant Savings, Free-ridership, Spillover, and Net-to-gross Ratios Product Category Free-ridership Spillover Net-to-gross Ratio LED Lamps 46% 9% 0.63 LED Fixtures 41% 32% 0.91 All Other Products - - 1.00
AI summary Table 4 outlines the 2021 Instant Savings, Free-ridership, Spillover, and Net-to-gross Ratios for different product categories, highlighting the proportion of free-ridership and spillover effects for LED Lamps and LED Fixtures, along with the corresponding Net-to-gross Ratios.
an A-type lamps that are considered a mature market. LED fixtures are similarly in a sustained growth phase, although less information specific to the residential market was available on this product. 2021 Instant Savings-Finding: The eval...
AI summary The 2021 Instant Savings-Finding indicates that evaluated net energy and peak demand savings for LED fixtures are 4% higher than the initial net savings tracked by EOne. This is attributed to an increase in spillover levels and a decrease in free-ridership levels, resulting in a higher NTGR for LED fixtures.
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 energy efficiency and...
AI summary EfficiencyOne (EOne) is a non-profit organization responsible for energy efficiency programs in Nova Scotia, funded by Nova Scotia Power ratepayers. EOne's 2021 DSM program portfolio includes the Residential Efficient Product Rebates program, which has two components: Appliance Retirement and Instant Savings. The evaluation report discusses the impact evaluation methodology, including baseline definitions, savings calculation, parameters, and net-to-gross ratios.
3 ARET IMPACT EVALUATION This section presents the findings of the 2021 impact evaluation aimed at determining gross and net electrical energy and peak demand savings.
AI summary This section presents the findings of the 2021 impact evaluation aimed at determining gross and net electrical energy and peak demand savings.
3.3 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 ARet, the NT...
AI summary The Evaluator calculated net energy and peak demand savings by estimating the Net-to-Gross Ratio (NTGR), considering factors like free-ridership and spillover effects for the Appliance Retirement (ARET) program. For appliances replaced through HomeWarming and MHEEP, a NTGR of 1 was assumed due to strict eligibility criteria.
3.3.3 Net-to-gross Ratio Calculation Given the methodology used to obtain net savings, the NTGR could not be calculated as a sum of the percentages of all effect values. To obtain an NTGR that takes into account both effects applied to uni...
AI summary The document discusses the calculation of the Net-to-Gross Ratio (NTGR) using a specific equation that accounts for unitary savings, free-ridership, secondary market impacts, and spillover effects. The NTGR is presented in Table 14 for each appliance type, with a default NTGR of 1.00 for dehumidifiers due to insufficient data.
3.3.4 Evaluated Net Savings Net savings represent the savings that can be reliably attributed to a program component. For ARet, net savings are calculated by applying the NTGR values to gross savings as illustrated in the following equatio...
AI summary The document calculates net savings for the Appliance Retirement (ARET) program by applying the Net-to-Gross Ratio (NTGR) to gross savings. Total net energy and peak demand savings are reported as 2.474 GWh and 0.357 MW, respectively, with net lifetime energy savings of 9.925 GWh and an average Energy Use Life (EUL) of 4.0 years.
Table 17: Comparison of 2021 ARet 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 4.542 GWh 0.56 2.549 GWh Evaluation R...
AI summary Table 17 compares 2021 ARet tracked and evaluated savings at the generator, showing energy and peak demand savings tracked by EOne and evaluation results, including net-to-gross ratios and realization rates.
Table 35: 2021 Instant Savings Net-to-gross Ratios Free-ridership Product Category Level Margin of Error Spillover Net-to-gross Ratio LED Lamps 46% 5.5% 9% 0.63 LED Fixtures 41% 5.3% 32% 0.91 All Other Products - - - 1.00 8.3.4 Evaluated N...
AI summary Table 35 presents the 2021 Instant Savings Net-to-gross Ratios for various product categories, including LED Lamps, LED Fixtures, and All Other Products, with corresponding free-ridership percentages and spillover values. Section 8.3.4 discusses the evaluated net savings.
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 The document defines net savings as changes in energy use attributable to Instant Savings, using the NTGR to estimate net program component impacts. Instant Savings achieved 14.314 GWh in net electrical energy savings and 1.629 MW in net peak demand savings, with a weighted average EUL of 8.4 years for net electrical energy savings.
2021 Instant Savings-Finding: The evaluated net energy and peak demand savings determined by the Evaluator are higher than the initial net savings tracked by EOne. The evaluated net energy and peak demand savings are 4% higher than the val...
AI summary The evaluated net energy and peak demand savings are 4% higher than those tracked by EOne, primarily due to increased spillover levels and decreased free-ridership for LED fixtures, leading to higher NTGR for this product category. Unitary energy savings from LED lamps and certified heat pump water heaters also slightly contributed to the increase.
Program Performance Table 2 presents the participation levels, net-to-gross ratios (NTGRs), as well as evaluated gross and net savings at the generator for each program component and for the Existing Residential program as a whole.
AI summary Table 2 provides data on participation levels, net-to-gross ratios (NTGRs), and evaluated gross and net savings at the generator for each program component and the Existing Residential program overall.
Table 3: Comparison of 2021 HEA 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 3.618 GWh 0.96 3.481 GWh Evaluation Res...
AI summary Table 3 compares 2021 Home Energy Assessment (HEA) tracked and evaluated savings, including energy and peak demand savings. It highlights gross savings, net savings, and realization rates, with NTGR values calculated as the ratio of net to gross savings. The table also notes the inclusion of unconverted D assessment spillover savings and deductions from Green Heat and EPI savings.
Green Heat Findings and Recommendations This subsection presents the key findings from the Green Heat evaluation. The Evaluator has no specific recommendation for Green Heat. 2021 GH-Finding: Green Heat net electrical energy and peak deman...
AI summary The Green Heat program exceeded its 2021 energy and peak demand savings targets by 22% and 13%, respectively. Participation levels reached a new high, driven by demand reduction measures. Participant satisfaction remained high, though rebate amounts received lower scores. Free-ridership for MSHPs decreased due to algorithm updates, while remaining stable for other categories. The NTGR values for 2021 are summarized in Table 4.
Table 4: 2021 Green Heat NTGRs Measure Free-ridership NTGR MSHPs 39% 0.61 CASHPs and GSHPs 33% 0.67 Biomass and Solar 41% 0.59 Demand Reduction - 1.00 2021 GH-Finding: Both the evaluated net energy and peak demand savings determined by the...
AI summary Table 4 presents the 2021 Green Heat NTGRs for various measures, including MSHPs, CASHPs, and biomass. The 2021 GH-Finding highlights that evaluated savings were higher than those tracked by EOne due to a new free-ridership level for MSHPs.
[Table](#page-77-1) 5 compares the tracked and evaluated results. Table 5: Comparison of 2021 Green Heat Tracked and Evaluated Savings at the Generator Net Savings Realization Value Unit Value Unit Rate 11.218 GWh 0.50 5.580 GWh 11.218 GWh...
AI summary Table 5 compares the 2021 Green Heat program's tracked and evaluated savings at the generator level, showing net savings and realization rates for different efficiency measures. The table highlights the net savings in GWh and MW, along with the net-to-gross ratio (NTGR) for each category.
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 energy efficiency and...
AI summary EfficiencyOne (EOne), a non-profit organization, delivers energy efficiency programs in Nova Scotia, funded by Nova Scotia Power (NS Power) ratepayers. EOne's 2021 DSM program portfolio includes residential programs evaluated by Econoler, focusing on impact evaluation components such as baseline definitions, savings calculation methodologies, and net-to-gross ratios.
2 HEA EVALUATION APPROACH The 2021 HEA evaluation comprised a condensed impact evaluation. The main objective of the 2021 HEA evaluation was as follows: › Calculate gross and net HEA results, namely electrical first-year and lifetime energ...
AI summary The 2021 Home Energy Assessment (HEA) evaluation focused on calculating both gross and net results, including electrical energy savings, peak demand savings, and avoided GHG emissions. The evaluation involved auditing tracking sheets, reviewing savings calculations, and using net-to-gross ratio (NTGR) results from a 2020 survey.
3.3 Net 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 program component, by estimating the net-to-gross ratio (NTGR). In the cas...
AI summary The Evaluator calculated net energy and peak demand savings by considering the net-to-gross ratio (NTGR), free-ridership, participant spillover, and deductions from Green Heat and EPI savings in the case of HEA.
3.3.3 Net-to-gross Ratio Calculation The NTGR is calculated using the following equation. NTGR = (1 – % Free-ridership + % Participant Spillover) Based on the free-ridership and spillover levels established for HEA, the NTGR value was esti...
AI summary The Net-to-Gross Ratio (NTGR) is calculated using the formula (1 – % Free-ridership + % Participant Spillover). Based on free-ridership and spillover levels from the Home Energy Assessment (HEA), the NTGR value was estimated at 0.75.
Table 25: Comparison of 2021 HEA 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 3.618 GWh 0.96 3.481 GWh Evaluation Re...
AI summary Table 25 compares 2021 Home Energy Assessment (HEA) tracked and evaluated savings at the generator level. It shows gross and net energy and peak demand savings, along with realization rates. The Net-to-Gross Ratios (NTGR) account for unconverted D assessment spillover savings and deductions from Green Heat and EPI programs.
8.3.2 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 as (1 - % Free-ridership). The Evaluator used the free-ridership level for each measure category to calculate NTGR values, which are presented in Table 35.
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 EPI program.
Table 56: 2021 EPI Participant Spillover Level – Non-low-income Participants Average Participant Spillover Level Margin of Error All Products 10% 7.5% 43 The 2019 values for owners were used as a comparison point since owners and tenants w...
AI summary Table 56 presents the 2021 EPI Participant Spillover Level for non-low-income participants, showing an average spillover level of 10% with a margin of error of 7.5%. The 2019 values for owners were used as a comparison point because owners and tenants were not differentiated in 2021.
14.3.3 Net-to-gross Ratio Calculation The NTGR was calculated using the following equation: NTGR = (1 – % Free-ridership + % Internal Spillover) The NTGR for low-income participants is assumed to be 1.00. Using both the free-ridership and...
AI summary The Net-to-Gross Ratio (NTGR) was calculated using the formula (1 – % Free-ridership + % Internal Spillover). The NTGR for low-income participants is assumed to be 1.00, while overall NTGR values for different products were established at 0.90, 1.00, and 1.07. The weighted average NTGR for all participants combined was calculated as 0.96.
14.3.4 Evaluated Net Savings Net savings are defined as the energy use reductions that are specifically attributable to EPI. Net savings were estimated by applying the overall NTGR to gross savings as exemplified in the following equation:...
AI summary The section discusses the calculation of net savings for the Efficient Product Installation (EPI) program using the Net-to-Gross Ratio (NTGR). It provides specific figures for energy and peak demand savings in 2021 and over the lifetime of the program, along with a weighted average energy useful life (EUL) value of 8.3 years.
Table 58: Evaluated 2021 EPI Net Energy and Peak Demand Savings LED Lamps Product Category 9 W Replacing 25 W 29 W 40 W 43 W 60 W 72 W 100 W 150 W Energy Savings Gross Energy Savings – at the Meter (GWh) 0.004 0.013 0.183 0.018 2.353 0.005...
AI summary Table 58 presents the evaluated 2021 EPI (Efficient Product Installation) net energy and peak demand savings for LED lamps across various wattages. It details gross and net energy savings at the meter and generator, line loss factors, and lifetime energy savings. The table provides data on energy efficiency and demand reduction for different lighting products.
Table 60: Comparison of 2021 EPI Tracked and Evaluated Savings at the Generator Gross Savings Realization Value Unit Value Value Unit Rate Value 8.347 GWh 0.91 7.621 GWh 103% 8.174 GWh 0.96 7.812 GWh 1.157 MW 0.92 1.062 MW 103% 1.143 MW 0....
AI summary Table 60 compares the 2021 EPI tracked and evaluated savings at the generator level, including gross savings, realization rates, and net savings. The table shows that the net-to-gross ratio (NTGR) varied by product type, with the average NTGR calculated by dividing net savings by gross savings.
2021 EPI Impact Evaluation Highlights - › EPI achieved 7.812 GWh in net electrical energy savings and 1.098 MW in net peak demand savings at the generator in 2021. - › Updating the installation rates based on the 2021 on-site visit finding...
AI summary In 2021, the EPI program achieved 7.812 GWh in net electrical energy savings and 1.098 MW in net peak demand savings. However, updated installation rates led to a slight reduction in gross savings, particularly due to a decrease in LED lamp installation rates. Free-ridership levels remained similar to 2019, but spillover effects increased significantly. Evaluated savings were 3% higher than tracked values due to an increase in NTGR.
2021 EPI-Finding: Overall satisfaction with EPI is high among participants. Using a 10-point scale, participants provided an average score of 8.7 for their satisfaction with EPI. Participants were mainly satisfied with the installer (26%),...
AI summary Participants in the 2021 EPI program expressed high satisfaction, with an average score of 8.7 on a 10-point scale. They were particularly satisfied with the installer, information received, and overall service. The differences between evaluated net energy and peak demand savings by the Evaluator and EOne were minimal, with a 3% variation attributed to adjustments in NTGR values and updated installation rates.
17 MHEEP EVALUATION APPROACH The 2021 MHEEP evaluation comprised a condensed impact evaluation. The main objective of the 2021 MHEEP evaluation was as follows: › Calculate gross and net MHEEP results, namely electrical first-year and lifet...
AI summary The 2021 MHEEP evaluation aimed to calculate both gross and net results, including energy savings, peak demand savings, and avoided GHG emissions. The evaluation approach included tracking sheet audits, measure assessments, and calculations using a net-to-gross ratio of 1.
18.3 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. More precisely, the NTGR r...
AI summary The Evaluator used the Net-to-Gross Ratio (NTGR) to determine net energy and peak demand savings from a program component, accounting for spillover and free-ridership effects. A NTGR of 1.00 was applied due to the unique housing budget constraints of Mi'kmaw communities.
Table 66: Comparison of 2021 MHEEP Tracked and Evaluated Savings at the Generator Gross Savings Net Savings Realization Value Unit NTGR Value Unit Rate Energy Savings Tracked Savings by EOne 0.316 GWh 1.00 0.316 GWh Evaluation Results 0.31...
AI summary Table 66 compares the 2021 MHEEP tracked and evaluated savings at the generator. The energy and peak demand savings determined by the Evaluator were identical to the initial savings tracked by EOne, with a 100% realization rate.
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 precisely, the NT...
AI summary The Evaluator used the net-to-gross ratio (NTGR) to determine the net energy and peak demand savings from a program component. For AMH, a NTGR of 1.00 was applied because free-ridership and spillover effects were considered nil due to participants being non-profits or low-income housing owners with limited budgets for building improvements.
Table 1: Verification of 2021 EPI Data Field Completeness and Accuracy Data Fields Complete (Y/N/Partial) Consistent with Previous Evaluation If Incomplete or Inconsistent, Action Taken by the Evaluator Net-to-gross Ratios (Column BC; Refe...
AI summary This table verifies the completeness and accuracy of 2021 EPI data fields, highlighting inconsistencies in net-to-gross ratios and effective useful life values compared to the 2020 evaluation. EOne used slightly different values for lighting measures and low-flow showerheads, as well as for several LED replacement measures.
Table 1: Summary of 2021 New Residential Program Evaluation Program Evaluation Type Component Impact Process Market Methodology NHC Condensed - - › Tracking sheet audit › Use of the net-to-gross ratio (NTGR) results from 2020 › Calculation...
AI summary This section presents a summary of the 2021 New Residential Program Evaluation, focusing on the New Home Construction (NHC) component. It outlines the evaluation methodology, including tracking sheet audits, the use of net-to-gross ratio (NTGR) results from 2020, and calculations related to GHG emission reductions.
[Table](#page-184-2) 2 presents the participation level, net-to-gross ratios (NTGRs), as well as evaluated gross and net savings at the generator for the New Residential program.
AI summary Table 2 outlines the participation level, net-to-gross ratios (NTGRs), and evaluated gross and net savings at the generator for the New Residential program.
Table 2: Overall 2021 New Residential Participation and Evaluated Savings Participation Level Gross Savings NTGR Net Savings Value Unit Value Unit Value Value Unit NHC Energy Savings 6.245 GWh 0.91 5.683 GWh Lifetime Energy Savings 853 Par...
AI summary Table 2 outlines the 2021 participation and evaluated savings from new residential programs, including energy savings, lifetime energy savings, and peak demand savings, along with the net-to-gross ratio (NTGR) for each category.
Table 3: Comparison of 2021 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 6.245 GWh 0.88 5.496 GWh Evaluation Res...
AI summary Table 3 compares the tracked and evaluated energy and peak demand savings from 2021 New Home Construction (NHC) programs. Tracked savings by EOne and evaluation results are presented, along with metrics such as net-to-gross ratio (NTGR), net savings, and realization rate.
3.3 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). The NT...
AI summary The Evaluator calculated net energy and peak demand savings by estimating the net-to-gross ratio (NTGR), considering free-ridership and market spillover effects for the NHC program component.
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 NHC NTGR is calculated using an equation that accounts for free-ridership and spillover effects. With the values from previous subsections, the NTGR was estimated at 0.91.
Table 13: 2021 NHC NTGR Free-ridership Participant Spillover NTGR 24% 15% 0.91 3.3.4 Evaluated Net Savings
AI summary Table 13 presents free-ridership and participant spillover percentages along with the NTGR value of 0.91. Section 3.3.4 discusses evaluated net savings, which is a key metric in assessing the effectiveness of programs.
Table 1: Verification of 2021 NHC Data Field Completeness and Accuracy Data Fields Complete (Y/N/Partial) Consistent with Previous Evaluation If Incomplete or Inconsistent, Action Taken by the Evaluator Data for Each Project or Participant...
AI summary This table verifies the completeness and accuracy of the 2021 NHC data fields, including heating system types, energy consumption models, heat pump performance metrics, and reference data. Most fields are complete and consistent, though some cold climate heat pump data fields are marked as N/A for consistency.
BER Findings and Recommendations This subsection presents the key findings and recommendations from the BER evaluation. 2021 BER-Finding: BER net electrical energy and peak demand savings fell short of targets. As outlined in Figure 1, BER...
AI summary The 2021 BER evaluation found that net electrical energy and peak demand savings fell short of targets by 6% and 25%, respectively. Participation in Mail-in and Instant Rebates increased, and overall satisfaction with BER was high. However, inaccuracies in reported parameters such as hours of use and peak coincidence factors were identified, leading to downward adjustments in savings. The Evaluator recommended changes to the lighting measure worksheet to improve accuracy.
Table 5: Comparison of 2021 BER Tracked and Evaluated Savings at the Generator Gross Savings Net Savings Realization Value Unit NTGR Value Unit Rate Energy Savings Tracked Savings by EOne 49.141 GWh 0.76 37.345 GWh Evaluation Results 48.96...
AI summary Table 5 compares the tracked and evaluated savings from the 2021 Business Energy Rebates (BER) program. It shows energy and peak demand savings tracked by EOne and evaluated results, with Net-to-Gross Ratios (NTGR) and realization rates provided for both categories.
4.3 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 p...
AI summary The Evaluator calculated net energy and peak demand savings by estimating the net-to-gross ratio (NTGR), taking into account factors like free-ridership and spillover effects that influence energy savings.
4.3.3 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 Mail-in, the Evaluator calculated the...
AI summary The Net-to-gross Ratio (NTGR) is calculated using the equation NTGR = (1 - % Free-ridership + % Spillover). The Evaluator used free-ridership and spillover levels established for Mail-in to calculate NTGR values, which are presented in Table 15.
Table 15: 2021 Mail-in NTGRs Measure Category Free-ridership Spillover NTGR All 26% 0% 0.74 4.3.4 Evaluated Net Savings
AI summary The document presents Table 15, which outlines the 2021 Mail-in NTGRs, including free-ridership at 26%, spillover at 0%, and an NTGR of 0.74. It also references section 4.3.4, which evaluates net savings.
5.3 Net Savings The Evaluator determined the net energy savings. i.e. the electrical energy savings that can be reliably attributed to a program component. by estimating the NTGR. In the case of Instant Rebates. the NTGR is established by...
AI summary The Evaluator calculated net energy savings by estimating the NTGR, with special consideration for free-ridership in the case of Instant Rebates.
5.3.2 Net-to-gross Ratio Calculation The NTGR is calculated using the following equation. $$NTGR = (1 - \% Free-ridership)$$ As presented in [Table](#page-73-1) 23, using the free-ridership levels outlined in Subsection [5.3.1](#page-71-1)...
AI summary The Net-to-gross Ratio (NTGR) is calculated as (1 - % Free-ridership). Based on free-ridership levels from Subsection 5.3.1, NTGRs were established for main measure categories, while a NTGR of 1.00 was applied for other measures sold through Instant Rebates.
2021 BER-Finding: Following the site visits, the Evaluator made downward adjustments to energy and peak demand savings for Mail-in. The Mail-In lighting project review and site visit results revealed that the parameters used to determine t...
AI summary The 2021 BER-Finding highlights downward adjustments to energy and peak demand savings for the Mail-in program due to incorrect reporting of parameters like HOUs and peak coincidence factors. It also notes a decline in the NTGR for Mail-in and Instant Rebates, attributed to increased free-ridership. The LED fixture market is approaching maturity, with stabilizing prices and growing shares despite overall shipment declines.
Table 2: Verification of 2021 Instant Rebates Data Field Completeness and Accuracy – Pumping Data Fields Complete (Y/N/Partial) Consistent with Previous Evaluation If Incomplete or Inconsistent, Action Taken by the Evaluator Data for Each...
AI summary This table verifies the completeness and accuracy of 2021 instant rebates data fields related to pumping. It highlights inconsistencies in the net-to-gross ratio for energy and peak demand savings, as well as estimated energy and demand savings per unit, which were corrected by the evaluator.
Table 3: 2021 Custom Net-to-gross Ratios for Energy Savings Retrofit New Construction Building Optimization Free-ridership Level 16% 15% 9% Spillover Level 0% 0% 0% Net-to-gross Ratio 0.84 0.85 0.91 For the OEM Operational Demand Savings P...
AI summary Table 3 presents the 2021 custom net-to-gross ratios for energy savings across different categories. The free-ridership levels are 16%, 15%, and 9% for Retrofit, New Construction, and Building Optimization, respectively, with spillover levels at zero. The net-to-gross ratios are 0.84, 0.85, and 0.91. The OEM Operational Demand Savings Pilot assumed zero free-ridership and spillover due to its limited scope.
4.3 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 service, by estimating the net-to-gross ratio (NTGR). More precisely,...
AI summary The Evaluator calculated net energy and peak demand savings using the net-to-gross ratio (NTGR), which accounts for spillover and free-ridership effects. For the OEM Operational Demand Savings Pilot, free-ridership and spillover were assumed to be zero due to the pilot's limited scope and participant selection.
6.3 Net 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 net-to-gross ratio (NTGR). More precisely, the NT...
AI summary The Evaluator calculated net energy and peak demand savings by estimating a net-to-gross ratio (NTGR), which accounts for factors like free-ridership and spillover effects. These factors influence the energy savings attributed to a service, particularly for Retrofit programs.
6.3.3 Net-to-gross Ratio Calculation The NTGR was calculated using the following equation: NTGR = (1 – % Free-ridership + % Participant Spillover) [Table](#page-55-2) 19 outlines the free-ridership and spillover levels established for Retr...
AI summary The Net-to-gross Ratio (NTGR) is calculated using the formula NTGR = (1 – % Free-ridership + % Participant Spillover). Table 19 outlines the free-ridership and spillover levels for Retrofit projects in 2021, along with the calculated NTGR values for different project categories.
Table 26: Evaluated 2021 New Construction NTGRs All Other Projects Fully Claimed in 2021 Free-ridership Level 15 % Participant Spillover Level 0 % NTGR 0.85 9.4 Evaluated Net Savings
AI summary Table 26 presents the evaluated 2021 new construction NTGRs with a free-ridership level of 15% and a participant spillover level of 0%, resulting in an NTGR of 0.85. Section 9.4 discusses the evaluated net savings related to these figures.
11.3.3 Net-to-gross Ratio Calculation The NTGR was calculated using the following equation: NTGR = (1 – % Free-ridership + % Participant Spillover) [Table](#page-82-2) 31 outlines the free-ridership and spillover levels established for Bui...
AI summary The Net-to-gross Ratio (NTGR) is calculated using the formula NTGR = (1 – % Free-ridership + % Participant Spillover). Table 31 provides free-ridership and spillover levels for Building Optimization, along with the resulting NTGR value.
16.4.1 Evaluated Net Savings Net savings are defined as the changes in energy use that are specifically attributable to EMIS. Since spillover and free-ridership effects were considered nil, the net program component impacts are equal to th...
AI summary Net savings from the EMIS program are calculated based on changes in energy use specifically attributable to the system, with no spillover or free-ridership effects. In 2021, the program achieved 0.027 GWh of energy savings and 0.003 MW of peak demand reduction, resulting in 16 tonnes of annually avoided CO2 eq emissions.
Table 1: Verification of 2021 EMIS Data Field Completeness and Accuracy Data Fields Complete (Y/N/Partial) Consistent with Previous Evaluation If Incomplete or Inconsistent, Action Taken by the Evaluator Data for Each Project or Participan...
AI summary This table verifies the completeness and accuracy of 2021 EMIS data fields, focusing on energy savings, peak demand savings, rate class, and net-to-gross ratios. It notes that the Effective Useful Life (EUL) of 3 years is uniformly applied, though it will be reviewed individually for each participant.
Table 1: Verification of 2021 SEM Data Field Completeness and Accuracy Data Fields Complete (Y/N/Partial) Consistent with Previous Evaluation If Incomplete or Inconsistent, Action Taken by the Evaluator Data for Each Project or Participant...
AI summary This table verifies the completeness and accuracy of 2021 SEM data fields, particularly focusing on energy and peak demand savings, rate class, and net-to-gross ratios. It notes inconsistencies in the effective useful life (EUL) application and plans for a review as part of the impact evaluation.
[Table](#page-20-2) 2 presents the participation levels, net-to-gross ratios (NTGRs), as well as evaluated gross and net savings at the generator for the Direct Installation program.
AI summary Table 2 outlines participation levels, net-to-gross ratios (NTGRs), and evaluated gross and net savings at the generator for the Direct Installation program.
Table 3: Comparison of 2021 SBES Tracked and Evaluated Savings at the Generator 3 Gross Savings Net Savings Realization Value Unit NTGR Value Unit Rate Energy Savings Tracked Savings by EOne 10.937 GWh 0.93 10.169 GWh Evaluation Results 11...
AI summary Table 3 compares the 2021 tracked and evaluated savings from the Small Business Energy Solutions (SBES) program at the generator level. It includes gross and net savings for energy and peak demand, along with realization rates and the Net-to-Gross Ratio (NTGR). The results include savings from the Commercial Direct Install (CDI) pilot.
4.3 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). The Ev...
AI summary The Evaluator calculated net energy and peak demand savings using the net-to-gross ratio (NTGR), considering free-ridership and spillover effects. A survey with 50 SBES participants was conducted to assess free-ridership, while no spillover updates were done in 2021.
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 DIY path free-ridership levels established for SBES in 2021, the 2019...
AI summary The Net-to-gross Ratio (NTGR) for SBES was calculated using a formula that accounts for free-ridership and participant spillover. The NTGR was estimated at 0.88 for the Audit path and 0.85 for the DIY path, with the CDI pilot having an NTGR of 1.00.
Project Path Free-ridership Participant Spillover NTGR Audit 12% 0% 0.88 DIY 15% 0% 0.85 CDI Pilot - - 1.00 Table 14: 2021 SBES NTGRs
AI summary Table 14 presents the 2021 SBES NTGRs for different project paths, including Audit, DIY, and CDI Pilot, along with their respective free-ridership and participant spillover percentages.