E-22023 DSM Programs Evaluation Reports
51 passages
Program Components Bibliographic References Nova Scotia Power, Total System Emissions, https://www.nspower.ca/clean-energy/air-emissions-reporting (Last accessed December 1st, 2023) Emera inc., Management's Discussion & Analysis, as at Feb...
AI summary The text lists various program components and their associated bibliographic references, including reports from Nova Scotia Power and Emera Inc., as well as references to studies and methods from the National Renewable Energy Laboratory and the Nova Scotia Utility and Review Board.
2 ARet Evaluation Approach The 2023 ARet evaluation involved a condensed impact evaluation. The main objectives were as follows: › Calculate gross and net results, namely electrical first-year and lifetime energy savings, peak demand savin...
AI summary The 2023 ARet evaluation focused on calculating gross and net results, including energy savings and avoided GHG emissions. Key research questions were identified to achieve these objectives, with Table 6 outlining the evaluation objectives, research questions, and methods.
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 Net savings are calculated using NTGR values applied to gross savings, resulting in 937 tonnes of CO2 eq in annual GHG emission reductions. This calculation is specific to the ARet program component.
8.2.2 Unitary Energy Savings For ENERGY STAR certified LED lamps and fixtures, the unitary savings values were updated to include the wattage values of the most popular products sold in 2023. It should be noted that for R, BR, and decorati...
AI summary The document discusses updates to unitary energy savings values for ENERGY STAR certified LED lamps and fixtures, including adjustments based on market availability and regulations. It also introduces unitary savings values for ENERGY STAR certified dishwashers. The Evaluator recommends reviewing certain lamp models for potential phase-out in 2024 due to market conditions.
Table 25: Evaluated 2023 Instant Savings Gross GHG Emission Reductions Total Gross Energy Savings – at the Generator (GWh) 15.512 Nova Scotia-specific GHG Emissions Factor for Electricity Production (tonnes of CO2 eq/GWh) 551.9 Gross Annua...
AI summary Table 25 presents the evaluated 2023 Instant Savings Gross GHG Emission Reductions, showing gross energy savings, the Nova Scotia-specific GHG emissions factor, and the resulting annual GHG emission reductions in tonnes of CO2 eq.
1.1 HEA Description HEA is a home energy evaluation-based program component that encourages homeowners to improve the energy efficiency and comfort of their home by providing them with related information and financial incentives in the fo...
AI summary The Home Energy Assessment (HEA) program provides homeowners with evaluations and rebates to improve energy efficiency. It collaborates with Natural Resources Canada and includes a CGH Grant for retrofits. The program has seen changes in assessment fees, eligibility, and eligible measures, with some incentives now solely funded by the CGH Grant.
Net savings are defined as the energy use reductions specifically attributable to HEA. Net savings were calculated by applying the NTGR value, adding unconverted D assessment spillover savings, and subtracting Green Heat and EPI savings, a...
AI summary Net savings are calculated using the NTGR value, spillover savings, and deductions for Green Heat and EPI. The net energy savings resulted in 14,330 tonnes of CO2 eq in annual GHG emission reductions.
MSHP contractor quotes: "To promote more efficient heating equipment into the marketplace. … by far, HP industry is a money saver for homeowners. Great to be stressing how advantageous heat pumps are in terms of efficiency and cost." "Peop...
AI summary Contractors highlight the benefits of heat pumps and rebates in promoting energy efficiency but note that the Green Heat program lacks relevance due to the higher incentives offered by the CGH Grant. Five contractors believe Green Heat does not have a clear niche, and six emphasize that the CGH Grant provides better monetary value to homeowners.
Table 29: 2023 Green Heat Unitary Peak Demand Savings Measure Evaluated Peak Demand Savings [W] Heat Pumps MSHPs – Fully Electrically Heated 2,470 MSHPs – Mainly Electrically Heated 2,540 Air-to-water Heat Pumps 3,989 CASHPs 3,989 GSHPs N/...
AI summary Table 29 presents peak demand savings for various heating measures under the 2023 Green Heat initiative. The data includes savings for heat pumps, biomass, and solar technologies, with some entries marked as N/A. The savings are calculated based on specifications and installation data.
Table 34: Evaluated 2023 Green Heat Net Energy and Peak Demand Savings MSI HPs . Air-to-Water Measure Measure Fully Mainly Electrical Electrical CASHPs Heat Pumps Energy Savings Gross Energy Savings – at the Meter (GWh) 2.853 0.245 0.017 0...
AI summary Table 34 provides an evaluation of the 2023 Green Heat Net Energy and Peak Demand Savings for various measures, including heat pumps, wood stoves, and pellet stoves. The table includes metrics such as gross and net energy savings, NTGR, line loss factor, and peak demand savings at both the meter and generator levels.
Evaluated 2023 Green Heat Net Energy and Peak Demand Savings (Continued) Measure Solar DHW Solar Thermal Air Heating Electric Thermal Storage Three-element Water Heaters DHW Heater Timers Total Energy Savings Gross Energy Savings – at the...
AI summary The 2023 Green Heat program underperformed its energy and peak demand savings targets by 19.6% and 12.3% respectively, as outlined in the evaluated data and figure provided.
17 MHEEP Evaluation Approach The 2023 MHEEP evaluation comprised a condensed impact evaluation. The main objectives of the 2023 MHEEP evaluation were as follows: › Calculate gross and net MHEEP results, namely electrical first-year and lif...
AI summary The 2023 MHEEP evaluation focused on calculating gross and net results, including energy savings, peak demand savings, and avoided GHG emissions. The evaluation objectives are mapped to research questions and methods in Table 57.
Table 65: Evaluated 2023 MHEEP Gross GHG Emission Reductions Total Gross Energy Savings – at the Generator (GWh) 0.577 Nova Scotia-specific GHG Emissions Factor for Electricity Production (tonnes of CO2 eq/GWh) 551.9 Gross Annual GHG Emiss...
AI summary Table 65 evaluates the 2023 MHEEP Gross GHG emission reductions, showing 0.577 GWh of energy savings, a 551.9 tonnes of CO2 eq/GWh emissions factor, and a total of 318 tonnes of CO2 eq in annual emission reductions.
Table 71: Evaluated 2023 AMH Gross GHG Emission Reductions Total Gross Energy Savings – at the Generator (GWh) 1.460 Nova Scotia-specific GHG Emissions Factor for Electricity Production (tonnes of CO2 eq/GWh) 551.9 Gross Annual GHG Emissio...
AI summary Table 71 evaluates the 2023 gross GHG emission reductions from Affordable Multifamily Housing (AMH) programs. It calculates reductions based on energy savings and Nova Scotia-specific emissions factors, using data from Nova Scotia Power and Emera Inc.
26.2.5 Evaluated Gross Savings The modelled and non-modelled measure annual gross savings at the meter are presented in [Table](#page-146-0) 77 and [Table](#page-146-1) 78 below respectively. As presented in [Table](#page-122-0) 63 above,...
AI summary The document discusses evaluated gross savings, presenting modelled and non-modelled measure annual gross savings at the meter and generator. Line loss factors provided by NS Power are used to estimate savings at the generator, corresponding to values submitted to the NSUARB in the 2014 Cost of Service Study Progress Update.
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.
[ASK SERIES IF SOLAR PV INSTALLED = IF B4I=1, OR IF [B1I](#page-160-2)=1 AND [(B2=](#page-160-0)2 OR [B3=](#page-160-1)1)] Now I would like to ask you a series of questions regarding your decision to install a solar PV system for which you...
AI summary The text outlines a series of questions aimed at determining whether the rebate for a solar PV system influenced the decision to install it. It asks if the installation was decided before the rebate was known and whether the rebate was a determining factor in paying for the system.
E. Product Adoption Curve Now, I am interested in hearing your thoughts on how the market for MSHPs has changed over the last two years. [SEND FIGURE BY EMAIL AHEAD OF INTERVIEW] - E1. Apart from price which we have already discussed, what...
AI summary The discussion focuses on changes in the MSHP market over the past two years, including factors like incentives, efficiency, and the impact of the Canada Greener Homes Grant. It also references a product adoption curve to assess the market lifecycle of MSHPs.
[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 4: Types of Evaluations Conducted for Each Program Component, 2023 Program Program Component Process Market Impact New Residential New Home Construction Condensed Key findings, electrical first-year and lifetime energy savings, peak...
AI summary Table 4 outlines the types of evaluations conducted for each program component in 2023, focusing on New Residential New Home Construction. Key findings include electrical first-year and lifetime energy savings, peak demand savings, and avoided GHG emissions.
Table 11: Evaluated 2023 NHC GHG Gross Emission Reductions Total Gross Energy Savings – at the Generator (GWh) 5.868 Nova Scotia-specific GHG Emissions Factor for Electricity Production (tonnes of CO2 eq/GWh) 551.9 Gross Annual GHG Emissio...
AI summary Table 11 presents evaluated 2023 NHC GHG gross emission reductions, showing 5.868 GWh of gross energy savings, a GHG emissions factor of 551.9 tonnes of CO2 eq/GWh, and 3,238 tonnes of CO2 eq annual GHG emission reductions.
[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.
The only differences between tracked and evaluated savings outlined in the figures are due to updating the HSPF and SEER values used in heat pump savings calculations to HSPF2 and SEER2. Figure 8: 2023 Application Rebates Tracked and Evalu...
AI summary The document discusses the differences between tracked and evaluated savings in the 2023 Application Rebates, attributing the differences to the update of HSPF and SEER values to HSPF2 and SEER2. Figures 8 and 9 illustrate gross energy and peak demand savings, while Table 10 outlines GHG emissions reductions using a Nova Scotia-specific factor.
Table 10: Evaluated 2023 Application Rebates Gross GHG Emission Reductions Total Gross Energy Savings – at the Generator (GWh) 11.406 Nova Scotia-specific GHG Emissions Factor for Electricity Production (tonnes of CO2 eq/GWh) 551.9 Gross A...
AI summary Table 10 presents the evaluated 2023 application rebates gross GHG emission reductions, including energy savings, emissions factor, and annual emission reductions. Section 3.3 discusses net savings, though the content is not detailed in the provided text.
Table 17: Evaluated 2023 Instant Rebates Gross GHG Emission Reductions Total Gross Energy Savings – at the Generator (GWh) 36.639 Nova Scotia-specific GHG Emissions Factor for Electricity Production (tonnes of CO2 eq/GWh) 551.9 Gross Annua...
AI summary Table 17 presents the evaluated 2023 instant rebates gross GHG emission reductions, showing energy savings and corresponding carbon emissions reductions in Nova Scotia. The table includes total gross energy savings, the GHG emissions factor for electricity production, and the resulting annual GHG emission reductions.
Table 2: Overall 2023 Custom Incentives Participation and Savings Participation Level Gross Savings NTGR Net S Net Savings Value Unit Value Unit Value Unit Value Custom Energy Savings Projects Completed 28.377 GWh 0.77 21.746 GWh Lifetime...
AI summary Table 2 summarizes the 2023 Custom Incentives Program's participation and savings, showing that the program nearly met its energy savings target but fell short of its peak demand savings target. The table includes metrics like energy savings, GHG emission reductions, and EUL.
Table 6: 2022 Custom Evaluation Approach Evaluation Objectives Research Questions Methodology Determine an adjustment ratio to be used for future solar PV projects › How do predicted energy production values compare to measured energy prod...
AI summary This section outlines a study to determine an adjustment ratio for future solar PV projects in Nova Scotia by comparing predicted energy production values with measured data, considering environmental factors and software bias.
Adjustment Ratio for Solar PV Projects In the fall of 2023, the Evaluator compared full-year energy production data provided by participants with modelled production for 18 solar PV projects with the objective of determining an average act...
AI summary In fall 2023, an Evaluator compared actual energy production data from 18 solar PV projects with modelled data to determine an average actual-to-modelled ratio. This ratio will be used to adjust future estimates of energy savings for custom solar PV projects in Nova Scotia.
3.1.5 Decarbonization and Electrification
AI summary This section introduces the topic of decarbonization and electrification, highlighting the importance of reducing greenhouse gas emissions through the transition to cleaner energy sources and the electrification of various sectors.
4.2.2 Adjustment Ratio for Solar PV Projects The Evaluator compared the full-year energy production data provided by participants with modelled production for 18 solar PV projects with the objective of determining an average actual-to-mode...
AI summary The Evaluator analyzed the energy production data from 18 solar PV projects to determine adjustment ratios for RETScreen Expert and PV Watts modeling tools. The ratios will help estimate actual energy savings for future projects. Adjustments were made for snow loss and irradiance variations, leading to low margin of error and reliable results.
14 For municipal utility participants, the line loss factor of the most similar NS Power rate code was assumed. \ \ The energy generated by solar PV systems coinciding with the Nova Scotia peak periods is considered nil, and none of the so...
AI summary The text discusses assumptions made for municipal utility participants using NS Power rate codes, the nil consideration of solar PV energy during peak periods in 2023, and the use of 2021 adjustment ratios for compressed air leak audit projects. It also references a 2014 Cost of Service Study Progress Update from the Nova Scotia Utility and Review Board.
Table 15: Evaluated 2023 Retrofit GHG Gross Emission Reductions Total Gross Energy Savings – at the Generator (GWh) 21.178 Nova Scotia-specific GHG Emissions Factor for Electricity Production (tonnes of CO2 eq/GWh) 551.9 Gross Annual GHG E...
AI summary Table 15 presents evaluated 2023 retrofit greenhouse gas (GHG) emission reductions, showing gross energy savings, a Nova Scotia-specific GHG emissions factor, and resulting annual GHG emission reductions. The data supports analysis of energy efficiency programs' environmental impact.
Net savings represent the savings that can be reliably attributed to a service. For New Construction, net savings are calculated by applying the NTGR value in the following equation: Net Savings = Gross Savings × NTGR The results are liste...
AI summary Net savings are calculated using the NTGR value, with an average EUL of 18.0 years resulting in 2,500 tonnes of CO2 eq in annual GHG emission reductions for new construction.
9 SEM Overview This section describes the Strategic Energy Management (SEM) program component, follows up on past evaluation recommendations, and provides an overview of participation history.
AI summary This section outlines the Strategic Energy Management (SEM) program, addresses past evaluation recommendations, and provides an overview of participation history.
11.1.1 SEM Awareness, Motivations for Participating, and Challenges Before taking part in SEM, four of the nine interviewed participants indicated already being aware of what a strategic energy management program was, and three of those we...
AI summary The document discusses participants' awareness, motivations, and challenges related to joining a Strategic Energy Management (SEM) program. Most participants expected energy mapping and treasure hunts to be useful, but found employee engagement more beneficial. Motivations included reducing energy costs and lack of internal resources. Key barriers included competing priorities, lack of qualified staff, and difficulties in coordination between the Service Provider and participants.
11.1.2 Satisfaction with SEM The Evaluator assessed two key aspects of participant satisfaction, overall satisfaction with SEM and satisfaction with the Service Provider. There was a high level of satisfaction with SEM overall with an aver...
AI summary Participants expressed high satisfaction with the Strategic Energy Management (SEM) program, with an average rating of 8.0. They praised the support and expertise of SEM and Service Provider staff. One participant was not satisfied due to difficulty in identifying energy saving opportunities. Interviews also highlighted satisfaction with the Service Provider's responsiveness, technical expertise, and the program's value relative to time and cost.
Table 37: Evaluated 2023 SEM Gross GHG Emission Reductions Total Gross Energy Savings – at the Generator (GWh) 3.381 Nova Scotia-specific GHG Emissions Factor for Electricity Production (tonnes of CO2 eq/GWh) 551.9 Gross Annual GHG Emissio...
AI summary Table 37 presents evaluated 2023 SEM gross GHG emission reductions, showing 3.381 GWh of energy savings and 1,866 tonnes of CO2 eq reduction. Section 12.3 discusses net savings related to these emissions reductions.
t and expertise provided by EOne staff and the Service Provider. 2023 SEM-Finding: The bottom-up M&V approach adopted in 2022 has not prevented SEM from meeting its energy management objectives. In the 2022 evaluation report, the Evaluator...
AI summary The 2023 SEM evaluation highlights that while the bottom-up M&V approach has not hindered SEM's energy management objectives, plant-level KPIs are missing from annual reports, making performance improvements less visible. The program lacks metrics for tracking capital energy efficiency projects and faces barriers such as time commitment, staff availability, and low priority for energy management.
SEM Appendix XIV SEM Service Provider Interview Guide Appendix XV SEM Participant Interview Guide Appendix XVI SEM Tracking Sheet Audit Appendix XVII SEM Project Review Protocol Appendix XVIII SEM Detailed Project Review Adjustments Append...
AI summary The document includes appendices related to the Strategic Energy Management (SEM) program, such as interview guides, audit sheets, project review protocols, and recommendations from 2023. It also contains contact information for an organization in Quebec City.
D. Decarbonization and Electrification - D1. Have your customers discussed decarbonization or electrification with you? If yes, what are their concerns? [PROBE: carbon credits] - D2. In your opinion, how do participant's decarbonization an...
AI summary The section asks about customer discussions on decarbonization and electrification, their concerns, and how these objectives influence participation in Retrofit and SEM programs. It also explores whether marketing SEM as an all-fuel program would increase its appeal.
APPENDIX II Retrofit and Solar Participant Interview Guide
AI summary This document outlines an interview guide for participants in the Retrofit and Solar program, likely used to gather feedback or insights from individuals or organizations involved in energy efficiency and renewable energy initiatives.
D. Participation Process - D1. We would like to validate with you which elements of the SEM process your organization has completed so far. Do you have: - i) An energy policy signed by the organization management? - ii) An assigned energy...
AI summary This section outlines the participation process for the Strategic Energy Management (SEM) program, asking organizations about their current energy management practices, reasons for non-implementation, and considerations regarding energy management information systems and program selection.
E. Decarbonization and Electrification - E1. Does your organization have a decarbonization or an electrification target? - E2. [SKIP IF E1=NO] How, if at all, has reducing GHG emissions reductions and/or electrification influenced your par...
AI summary The document asks whether an organization has a decarbonization or electrification target and, if so, how these goals have influenced their participation in Strategic Energy Management (SEM). It also inquires if these efforts have increased involvement of the energy team or shifted focus to non-electric fuels.
Table 30: Solar Domestic Hot Water Measure Summary Parameter Green Heat Reference Measure Description and Identification Measure Description Solar domestic hot water heating for water heating from renewable energy N/A Additional Notes - Ge...
AI summary Table 30 summarizes the Solar Domestic Hot Water Measure, including its description, installation rate, useful life, and energy savings parameters. The table highlights that the measure has a 100% installation rate, a 20-year useful life, and no unitary energy savings as it is calculated using RETScreen.
3.7.2 Peak Demand Savings Factors For solar PV projects, peak demand savings are nil since the solar PV energy production from those systems coinciding with the peak period is negligible.
AI summary For solar PV projects, peak demand savings are nil because solar PV energy production during peak periods is negligible.
(1) Solar Photovoltaic Systems
AI summary This section introduces the topic of Solar Photovoltaic Systems, indicating that it will cover relevant information and discussions related to solar energy in the regulatory proceeding.
Table 181: Summary of Solar PV Measures Parameter Custom Retrofit Reference Measure Description and Identification Measure Description Solar PV systems for commercial, industrial, and agricultural facilities N/A Additional Notes - General...
AI summary Table 181 summarizes solar PV measures, including installation rates, effective useful life, and energy savings parameters. The table outlines details for commercial, industrial, and agricultural facilities, with specific values and references to subsections for calculations and assumptions.
Electrical Unitary Energy Savings The electrical unitary energy savings for solar PV systems installed in commercial, industrial, and agricultural applications are calculated using the variables defined and listed in the equations and tabl...
AI summary The document outlines the method for calculating electrical unitary energy savings for solar PV systems in commercial, industrial, and agricultural applications. It specifies that energy production should be modelled using tools like PV Watts or RETScreen Expert, with a 14% loss factor included.
Table 182: Electrical Savings Values for Solar PV Systems Parameter Symbol Value Source Modelled Energy Production [kWh] - Varies per project Project documentation For panel tilt angles ≥ 25°: 1% Northern Alberta Snow Loss Factor [%] - For...
AI summary Table 182 outlines electrical savings values for solar PV systems, including parameters like modelled energy production, snow loss factors, adjustment ratios, and unitary energy savings. The table includes data from various sources and models, such as PV Watts and RETScreen Expert.
214 Public Utility Commission of Wisconsin, Wisconsin Focus on Energy 2023 Technical Reference Manual , State of Wisconsin, January 2023, p. 945 & lt;sup>215 National Renewable Energy Laboratory, Photovoltaic Degradation Rates — An Analyti...
AI summary The text cites two external documents: the Wisconsin Focus on Energy 2023 Technical Reference Manual and a National Renewable Energy Laboratory report on photovoltaic degradation rates. These references provide technical information relevant to energy efficiency and renewable energy topics.
Table 192: Lifetime Energy Savings for Solar Fixtures Initial Baseline Wattage (W) 2 Years (2023-2024) LED Equivalent Baseline (W) – American Legislation 8 Years (2025-2032) Measure Life (years) Lifetime Energy Savings (kWh) Equivalent EUL...
AI summary Table 192 presents lifetime energy savings for solar fixtures, comparing initial baseline wattage to an LED equivalent baseline under U.S. federal legislation. The table shows energy savings over a 10-year measure life and equivalent energy use life (EUL) of 2.6 years.