E-22023 DSM Programs Evaluation Reports
98 passages
5 Market Evaluation Results For the 2023 evaluation, the Evaluator conducted a market evaluation for Green Heat, focused on mini-split heat pumps (MSHPs).
AI summary The 2023 market evaluation focused on Green Heat, specifically assessing the market for mini-split heat pumps (MSHPs).
Green Heat: Mini-split Heat Pumps To understand the evolution of the MSHP market for the residential sector in Nova Scotia since the last evaluation in 2021, the Evaluator spoke to heat pump distributors in the province regarding high-effi...
AI summary The Evaluator spoke to heat pump distributors in Nova Scotia to understand the evolution of the mini-split heat pump (MSHP) market since 2021, with a key finding related to the Green Heat market evaluation.
› The MSHP market is in a sustained growth phase. NS Power data indicated a marked increase in annual incremental heat pump installations in 2022 and forecasted that 40% of Nova Scotia households used a heat pump in 2023. Heat pump distrib...
AI summary The MSHP market in Nova Scotia is experiencing sustained growth, with increasing installations and consumer interest. Financial incentives like the Canada Greener Homes Grant are driving this growth, but challenges remain for low-income households and those with additional home challenges, which may limit future participation in Green Heat as the market matures.
Table 14: 2023 Recommendations on Residential Program Components No. Recommendation As noted above, many Nova Scotian households have installed heat pumps, but 60% of households still do not have one. It is likely that a proportion of the...
AI summary The table discusses the need for increased incentives to promote heat pump adoption among low to moderate-income households in Nova Scotia, emphasizing the importance of cost-effectiveness in expanding residential energy efficiency programs.
ection 2.2 – HVAC Minnesota Department of Commerce Division of Energy Resources, State of Minnesota Technical Reference Manual for Energy Conservation Improvement Programs Version 3.1 , January 2020 NRCan for air-source heat pump [(https:/...
AI summary The section references various technical and programmatic resources related to HVAC systems, including energy efficiency manuals, heat pump guidelines, and program evaluations from multiple jurisdictions. These materials are cited for their relevance to energy conservation and improvement initiatives.
ding: Free-ridership levels increased for Green Heat measures, particularly for MSHPs (48% in 2023). Free-ridership for biomass measures was evaluated at 47% and for demand reduction measures at 9%. 2023 Green Heat-Finding: The MSHP market...
AI summary Free-ridership levels for Green Heat measures increased in 2023, especially for MSHPs at 48%. The MSHP market is growing due to consumer interest, rising fossil fuel costs, and incentives. Many low and moderate-income households without heat pumps face barriers to installation. Recommendation #4 suggests increasing incentives for these households and for heat pump replacements if cost-effective.
Table 21: 2023 Savings Overlap to Deduct from HEA Overlap Net Energy Savings at Generator (GWh) Net Peak Demand Savings at Generator (MW) Overlap with Green Heat 0.043 0.012 Overlap with EPI 0.038 0.007 Total 0.081 0.019 4.3.6 Evaluated Ne...
AI summary Table 21 shows the overlap of energy savings from various programs with the Home Energy Assessment (HEA) in 2023, including overlaps with Green Heat and Efficient Product Installation (EPI), and the total net energy and peak demand savings at the generator level.
6 Green Heat Overview This section describes Green Heat, follows up on past evaluation recommendations, and provides an overview of participation history.
AI summary This section provides an overview of Green Heat, outlines follow-up actions on past evaluation recommendations, and summarizes participation history in the program.
6.2 Follow-up on Past Evaluation Report Recommendations The Evaluator evaluated Green Heat in previous years and issued improvement recommendations. However, there were no new recommendations in 2022 and the past recommendations that were...
AI summary The Evaluator previously assessed the Green Heat program and provided improvement recommendations. In 2022, no new recommendations were issued, and past recommendations that had not been implemented are now considered irrelevant, meaning no further follow-up is required.
Table 26: 2023 Green Heat Survey Sample Sizes and Margins of Error Measure Final Population Population at Time of Survey Sample Size Sampling Margins of Error at 90% Confidence Level MSHPs 1,132 858 90 ±5.5% Biomass 213 176 29 ±8.2% ETS 31...
AI summary Table 26 presents sample sizes and margins of error for the 2023 Green Heat Survey, including data on MSHPs, Biomass, ETS, and total responses. The table provides insights into the survey's statistical reliability.
In October and November 2023, Narrative Research conducted 20 interviews with contractors involved in Green Heat to obtain their perspectives on the component and their feedback on the Nova Scotia MSHP market. The guide used for the contra...
AI summary In October and November 2023, Narrative Research interviewed 20 contractors involved in Green Heat to gather their perspectives and feedback on the Nova Scotia MSHP market. The interview guide is provided in Appendix XI.
8 Green Heat Stakeholder Perspectives This section presents an analysis of stakeholder perspectives on Green Heat. Stakeholders include Green Heat MSHP, biomass, and ETS participants, MSHP and ETS contractors, and MSHP distributors. It sho...
AI summary This section analyzes stakeholder perspectives on Green Heat, including participants, contractors, and distributors. Due to a small sample size for Green Heat ETS participants (n=5), results are presented as numbers rather than percentages.
8.3 Familiarity with and Differences Between Green Heat and Home Energy Assessment/CGH Grant
AI summary This section discusses the familiarity with and differences between Green Heat and the Home Energy Assessment/Community Grant for Homes (CGH) Grant. It highlights the distinctions in program objectives, eligibility criteria, and implementation approaches.
8.3.2 Contractor Familiarity When interviewed contractors were asked about their familiarity with Green Heat, 13 out of 20 indicated they knew the component well . Familiarity with HEA/CGH Grant is equally robust – 14 out of 20 are very fa...
AI summary Contractors were surveyed on their familiarity with Green Heat and HEA/CGH Grant programs. Most indicated strong knowledge, though some uncertainty remains regarding the differences between the two programs, as reflected in an average score of 7.6 on a clarity scale.
8.5 Strengths and Challenges According to contractors, the main strength of Green Heat is by far that the rebate incentivizes homeowners to install MSHPs and/or time of use systems (i.e. ETS). Contractors note that the money saved is a key...
AI summary The Green Heat program's main strength is its rebate, which incentivizes homeowners to install more efficient heating systems like MSHPs and ETS. Contractors highlight that the rebate benefits their sector by encouraging the switch from fossil fuels and educating homeowners on long-term affordability and environmental benefits. The program is also praised for its simplicity and clear eligibility criteria.
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.
Green Heat Strengths: - › MSHP/ETS incentives - › Encourages switch from fossil fuels - › Benefits contractors - › Educates participants - › Simple application - › Clear eligibility criteria
AI summary The Green Heat Strengths section highlights the benefits of MSHP/ETS incentives, including encouraging the switch from fossil fuels, benefiting contractors, educating participants, and offering a simple application process with clear eligibility criteria.
9 Green Heat Impact Evaluation The objectives of the 2023 Green Heat impact evaluation were to determine gross and net electrical energy and peak demand savings, annually avoided GHG emissions, as well as effective useful life (EUL) values...
AI summary The 2023 Green Heat impact evaluation aimed to assess gross and net electrical energy and peak demand savings, annually avoided GHG emissions, effective useful life values, and associated lifetime energy savings.
9.2.1 Installation Rates Installation rates represent the proportion of measures recorded in the tracking sheet that remain installed in participants' homes. Installation rates for all energy efficient heating systems under Green Heat were...
AI summary Installation rates for energy efficient heating systems under Green Heat are estimated at 100% due to their relatively high cost, indicating that all recorded measures remain installed in participants' homes.
Table 28: 2023 Green Heat Tracked and Evaluated Unitary Energy Savings Measure Tracked Savings per Capacity [kWh/Btu/h] Evaluated Savings [kWh/year] Heat Pumps MSHPs – Fully Electrically Heated 0.179 3,045 MSHPs – Mainly Electrically Heate...
AI summary Table 28 presents the 2023 Green Heat Tracked and Evaluated Unitary Energy Savings, detailing energy savings from various heating measures such as heat pumps, biomass, and solar. The data includes tracked savings per capacity and evaluated savings in kWh/year for different types of heating systems.
9.2.3 Unitary Peak Demand Savings Peak demand savings correspond to the demand savings that coincide in time with the peak demand period of the electricity system. The projected electricity peak demand period in Nova Scotia is defined as t...
AI summary Peak demand savings are calculated for specific periods in Nova Scotia, focusing on the coldest days between December and February. Unitary peak demand savings for measures like MSHPs, ETS units, and CASHPs are evaluated, with some revisions based on heating capacity and performance metrics. The 2020-2023 Measure Assessment provides the detailed calculations.
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.
[Figure](#page-53-0) 18 compares tracked gross energy savings to evaluated gross energy savings at the generator. As outlined in the figure, tracked and evaluated energy savings are the same for all measures. Figure 18: 2023 Green Heat Tra...
AI summary The figures and table compare tracked and evaluated energy and peak demand savings from the 2023 Green Heat program, showing they are the same for all measures. The table also outlines how GHG emissions reductions were calculated using a Nova Scotia-specific factor applied to electricity production emissions.
Table 31: Evaluated 2023 Green Heat GHG Gross Emission Reductions Total Gross Energy Savings – at the Generator (GWh) 5.561 Nova Scotia-specific GHG Emissions Factor for Electricity Production (tonnes of CO2 eq/GWh) 551.9 Gross Annual GHG...
AI summary Table 31 presents the evaluated 2023 Green Heat GHG gross emission reductions, showing 3,069 tonnes of CO2 eq reduced annually through energy savings of 5.561 GWh. This data is part of a broader analysis of emission reductions under the Green Heat program.
10.2 Market Share of Heat Pumps The data presented in this subsection are for all heat pumps, not just MSHPs. NS Power data indicate that, since 2013, over 90% of heat pumps installed through the NS Power on-bill financing program componen...
AI summary This section discusses the market share of heat pumps in Nova Scotia, noting that over 90% of installations through NS Power's on-bill financing program and 83% through EOne programs are MSHPs. The data show a significant increase in heat pump installations, particularly in existing homes, which may be attributed to the CGH Grant launched in 2021.
Table 36: Green Heat Incented High-efficiency Mini-split Heat Pump Systems, 2019-2023 2019 2020 2021 2022 2023 Electrical Non-electrical Electrical Non-electrical Electrical Non-electrical Electrical Non-electrical Electrical Non-electrica...
AI summary Table 36 presents data on the number of Green Heat Incented High-efficiency Mini-split Heat Pump (MSHP) systems installed from 2019 to 2023, along with the average HSPF (Heating Seasonal Performance Factor) of the units. The data shows fluctuations in the number of systems installed annually, with a notable decline in 2022 and 2023.
2019 2020 2021 2022 2023 Number of Homes with MSHP Systems 585 514 503 2,253 4,876 \ For 2019-2021, the table indicates the number of MSHPs incented through HEA. In 2022 and 2023, the table indicates the number of homes in which MSHPs were...
AI summary The table shows the number of homes with MSHP systems from 2019 to 2023. From 2019 to 2021, the numbers represent homes incentivized through HEA, while 2022 and 2023 show actual installations. The numbers increased significantly from 2021 to 2023.
10.2.1 Green Heat Eligible Mini-split Heat Pumps The Evaluator interviewed five MSHP distributors in Nova Scotia to gain more in-depth understanding of MSHP market trends and sales of Green Heat-eligible high-performing cold climate MSHPs....
AI summary The Evaluator interviewed MSHP distributors in Nova Scotia to understand market trends and sales of Green Heat-eligible high-performing cold climate MSHPs. Distributors reported that a large proportion of their sales are high-performing units, but confusion and low incentives are barriers to Green Heat program participation.
tia population to find out more about heat pumps. Figure 25: Evolution of "Heat Pump" Keyword Search in Nova Scotia: Jan 2017 to Nov 2023 [https://trends.google.com/trends/explore?date=2017-01-01%202023-12-31&geo=CA-NS&q=heat%20pump&hl=](h...
AI summary The document discusses the outlook for mini-split heat pump (MSHP) sales in Nova Scotia, noting increasing sales due to declining oil furnace popularity and continued incentive programs. It also highlights challenges such as new HSPF2 and SEER2 standards, supply chain issues, and potential market saturation.
10.2.4 Codes and Standards The ultimate indicator of market transformation is the adoption of more stringent codes and standards. Electric resistance heating remains the minimal efficiency level as per building codes for new small resident...
AI summary The adoption of more stringent building codes and energy efficiency standards is a key indicator of market transformation. Nova Scotia's new building code, based on NECB 2020, requires a 50% increase in energy efficiency by 2028, likely necessitating high-efficiency heating systems like heat pumps. Canada's Amendment 17 to the Energy Efficiency Regulations also raises performance standards for heat pumps, especially under cold conditions.
Table 39: Analysis of 2023 Key Factors in Energy Efficiency Program Planning Factor Results Market share of heat pumps and efficient MSHPs NS Power data indicate a marked increase in new heat pump systems installed in 2022, an increase tha...
AI summary The document discusses the increasing adoption of heat pumps in Nova Scotia, driven by federal incentives and declining use of oil for heating. NS Power forecasts continued growth in heat pump installations, with a significant portion of these installations receiving incentives from EOne's Green Heat and HEA programs.
11 Green Heat Key Findings and Recommendations As mentioned previously, the main objectives of the 2023 Green Heat evaluation were as follows: - › Collect information on participant and partner perspectives - › Calculate gross and net resu...
AI summary The 2023 Green Heat evaluation aimed to collect perspectives, calculate energy savings and GHG emissions, and analyze the market evolution of mini-split heat pumps. This section outlines the evaluator's key findings related to these objectives.
2023 Green Heat-Finding: Both the evaluated gross energy and peak demand savings were identical to the savings tracked by EOne. Green Heat underwent a condensed impact evaluation in 2023. No changes were made by the Evaluator to gross ener...
AI summary The 2023 Green Heat-Finding evaluated gross energy and peak demand savings, finding them identical to those tracked by EOne. No changes were made to the evaluation parameters or calculations, resulting in matching results.
2023 Green Heat-Finding: Contractors/installers play an important role in recommending Green Heat. Contractors/installers play a very important role not only in promoting and informing about incentive programs, but also in recommending Gre...
AI summary Contractors and installers are key in promoting Green Heat, but they often recommend HEA/CGH Grant due to higher incentives. They are engaged with EOne programs and interested in education about Green Heat, though they lack clarity on the differences between Green Heat and HEA/CGH Grant.
2023 Green Heat-Finding: The MSHP market is in a sustained growth phase. NS Power data indicate a marked increase in annual incremental heat pump installations in 2022 and forecasted that 40% of Nova Scotia households were using a heat pum...
AI summary The MSHP market in Nova Scotia is growing rapidly, driven by consumer interest and financial incentives like the CGH Grant. However, challenges remain, particularly for low and moderate-income households and those needing heat pump replacements. The report recommends increasing incentives for these groups to boost participation in Green Heat.
24.3 Participation History Participation in ASFH is defined as "homes with upgrades that generated electrical savings". In 2023, 242 homes received upgrades. Among those homes, 224 implemented building envelope measures with 119 of them in...
AI summary The participation history for the Affordable Single-Family Homes (ASFH) program in 2023 shows that 242 homes received upgrades, with 224 implementing building envelope measures and 119 installing heat pumps. Additionally, 18 homes only installed heat pumps, and 53 appliances were replaced. However, appliance replacements are not counted in participation numbers as they occur after the program is completed.
Green Heat Appendix IX Green Heat Participant Survey Questionnaire Appendix X Green Heat Participant Survey Results Appendix XI Green Heat Contractor Interview Guide Appendix XII Green Heat Distributor Interview Guide Appendix XIII Green H...
AI summary The document includes various appendices related to the Green Heat initiative, such as participant surveys, contractor and distributor interview guides, tracking sheets, algorithms for free-ridership calculation, and 2023 recommendations.
[ASK [B8](#page-162-0) IF A HEAT PUMP IS INSTALLED – IF [B4A](#page-161-0)=1, OR IF [B1A](#page-160-2)=1 AND [(B2=](#page-160-0)2 OR [B3=](#page-160-1)1)] - B8. Prior to installing your heat pump, did you already have a working air conditi...
AI summary The text contains a series of questions related to the installation of heat pumps and the likelihood of purchasing an air conditioner. It includes conditional logic based on prior responses and asks respondents to rate their likelihood on a numerical scale.
Series A: Questions on the decision to install a heat pump - D1. Had you already decided to install a heat pump before you had your home evaluated by an energy advisor? - 1. Yes - 2. No - 98. Don't know - 99. Refused - D2. [IF [D1=](#page-...
AI summary This section of the document contains questions related to the decision-making process of installing a heat pump, including whether the decision was made before an energy advisor's evaluation and alternative actions if there were no program incentives.
[VOLUNTEERED] - 98. Don't know [GO TO F SECTION] - 99. Refused [GO TO F SECTION] - D4. [IF [B8=](#page-162-0)1 AND [D1=](#page-164-0)2, 98, 99 OR [D2=](#page-165-0)2, 98, 99] If there were no program, which of the following actions would y...
AI summary The text outlines a questionnaire section where respondents are asked about their heating system choices in the absence of a program, with options including maintaining an existing system, purchasing a new non-electric system, or buying a heat pump.
Series B: Questions on the decision to install a high-efficiency heat pump Only high-efficiency heat pump models are eligible for a rebate under the program, so the heat pump you installed is much more efficient than the standard heat pump...
AI summary The document contains questions regarding the decision to install a high-efficiency heat pump, focusing on awareness of available models and the impact of rebates on purchasing decisions. It explores whether respondents were aware of high-efficiency models before an energy evaluation and whether they would have purchased the model without the rebate.
B9. If you had not installed a heat pump through your participation in the program, what is the likelihood that would you have purchased an air conditioner? Please answer on a scale of 0 to 10, where 0 is "Definitely not" and 10 is "Defini...
AI summary The question asks about the likelihood of purchasing an air conditioner if a heat pump had not been installed through a program, using a 0 to 10 scale.
2023 Sample Size 31 MEAN 5.6 Base: Did not already have a working air conditioner prior to installing a heat pump
AI summary The document presents a statistical summary from 2023, highlighting a sample size of 31 and a mean value of 5.6, focusing on individuals who did not previously have a working air conditioner before installing a heat pump.
Just to confirm: before you had your home evaluated by an energy advisor, you had already made the decision to install a heat pump to heat your home? 2023 Sample Size 14 Yes 71% No 29% Base: Respondents who installed a heat pump but no oth...
AI summary The text confirms that 71% of respondents who installed a heat pump had already decided to do so before their home was evaluated by an energy advisor, while 29% had not. This data is based on a sample size of 14 in 2023.
D3. If there were no program, which of the following actions would you have taken? 2023 Sample Size 4 (#) Kept your existing heating system 2 Kept your existing heating system and purchased an air conditioner 1 Purchased a new non-electric...
AI summary The question asks what actions respondents would have taken if there were no program, with responses indicating that most would have kept their existing heating system, while a few would have purchased additional equipment.
D6. Were you aware that high efficiency heat pumps that operate at temperatures below -15°C were available, before you had your home evaluated by an energy advisor? 2023 Sample Size 9 (#) Yes 5 No 4 D7. Before you had your home evaluated b...
AI summary The document asks respondents if they were aware of high efficiency heat pumps operating below -15°C before an energy advisor evaluation and whether they had decided to install such a model. In 2023, 5 out of 9 respondents were aware, and all 5 who decided to install a high-efficiency heat pump had already made that decision prior to evaluation.
D8. Efficiency Nova Scotia gave you a rebate for your new high efficiency heat pump. If you had not received the rebate, would you have paid the total cost of your high-efficiency heat pump? Please answer on a scale of 0 to 10, where 0 mea...
AI summary The question asks whether a rebate from Efficiency Nova Scotia influenced the decision to purchase a high-efficiency heat pump, using a scale from 0 to 10 to gauge the impact of the rebate on the purchase decision.
'Don't know' and 'Refused' are excluded from the mean calculation D9A. I would like you to rate the influence of the following three factors in your decision to install a highefficiency heat pump. Use a scale from 0 to 10 where 0 is "No in...
AI summary The text requests a rating of the influence of three factors in the decision to install a high-efficiency heat pump, using a scale from 0 to 10.
2023 Sample Size Mean The program rebate 9 9.0. Information provided by the retailers or contractors on the benefits of high efficiency heat pumps 9 7.3 Information provided by Efficiency Nova Scotia on the benefits of high efficiency heat...
AI summary The data table shows the sample size and mean responses regarding heat pump installation and information provided by retailers, contractors, and Efficiency Nova Scotia. The base refers to respondents who decided to install and purchase a heat pump before home evaluation.
E6. If there were no program, which of the following actions would you have taken? 2023 Sample Size 3 (#) Kept your existing heating system 1 Purchased a heat pump 2 Base :Respondents who prior to installing their heat pump had a working a...
AI summary In the absence of a program, 1 out of 3 respondents would have kept their existing heating system, while 2 would have purchased a heat pump. This data is based on a sample size of 3 respondents who had a working air conditioner and no plans for upgrades.
Table 2: Free-Ridership Algorithm for Heat Pump and No Other Energy-efficient Upgrades Series A: Questions on the decision to install a heat pump
AI summary The text introduces Table 2, which outlines a free-ridership algorithm for the installation of heat pumps without other energy-efficient upgrades. The table is structured with a series of questions aimed at assessing the decision-making process behind installing a heat pump.
[ASK [C1](#page-22-1) TO [C10](#page-25-1) IF EQUIPMENT = MINI-SPLIT HEAT PUMPS (MSHP) IN SAMPLE] Moving along to another topic… I would like to ask you a series of questions regarding your decision to install a high efficiency heat pump i...
AI summary The text introduces a series of questions about the decision to install high efficiency heat pumps (MSHP) instead of other heating systems or maintaining the existing system.
Series A: Questions on the decision to install a heat pump - C1. Prior to installing your heat pump, did you already have a working air conditioner in your home? - 1. Yes - 2. No - 98. Don't Know - 99. Refused - C2. Had you already decided...
AI summary This section of the regulatory proceeding document includes questions about the decision-making process of homeowners regarding the installation of heat pumps. It explores whether respondents had existing air conditioners, had already decided to install a heat pump prior to learning about rebate programs, and what actions they would have taken in the absence of such programs.
[VOLUNTEERED] - 98. Don't know [GO TO G SECTION] - 99. Refused [GO TO G SECTION] - C5. [IF C1= 1 AND [C2=](#page-23-0)2, 98, 99 OR [C3=](#page-23-1)2, 98, 99] If there were no Heating System Rebates program, which of the following actions...
AI summary The text presents a series of survey questions related to the Heating System Rebates program, asking respondents what actions they would take if the program did not exist and how likely they would be to delay purchasing a heat pump. The questions are structured with response options and instructions for proceeding.
Series B: Questions on the decision to install a high-efficiency heat pump Only high-efficiency heat pump models are eligible for a rebate under the Heating System Rebates program, so the heat pump you have installed is much more efficient...
AI summary The text discusses a survey regarding the installation of high-efficiency heat pumps, focusing on customer awareness and decision-making influenced by rebate programs. It includes questions about prior knowledge of high-efficiency models and whether the rebate influenced the decision to purchase.
APPENDIX X Green Heat Participant Survey Results
AI summary This appendix presents the results of the Green Heat Participant Survey, providing insights into customer experiences and feedback related to the Green Heat program.
C1. Prior to installing your heat pump, did you already have a working air conditioner in your home? 2023 MSHP Biomass ETS Sample Size 90 90 - - Yes 31% 31% - - No 69% 69% - - Base: Respondents who installed a mini-split heat
AI summary The data shows that 31% of respondents who installed a mini-split heat pump already had a working air conditioner in their home, while 69% did not. The sample size for both 2023 and MSHP was 90 respondents.
C2. Had you already decided to install a heat pump before you heard about the Heating System Rebates program? 2023 MSHP Biomass ETS Sample Size 90 90 - - Yes 79% 79% - - No 20% 20% - - Refused 1% 1% - - Base: Respondents who installed a mi...
AI summary The table shows that 79% of respondents who installed a mini-split heat pump had already decided to do so before learning about the Heating System Rebates program, while 20% decided after hearing about the program.
C3. Just to confirm: before you learned about the Heating System Rebates program, you had already made the decision to install a heat pump to heat your home? 2023 MSHP Biomass ETS Sample Size 71 71 - - Yes 97% 97% - - No 1% 1% - - Refused...
AI summary The chunk confirms that the majority of respondents (97%) had already decided to install a mini-split heat pump before learning about the Heating System Rebates program, with only 1% refusing to answer and 1% indicating they did not make the decision beforehand.
C2/C3 COMBINED. Had you already decided to install a heat pump before you heard about the Heating System Rebates program? Just to confirm: before you learned about the Heating System Rebates program, you had already made the decision to in...
AI summary The question asks whether the individual had already decided to install a heat pump prior to learning about the Heating System Rebates program, seeking confirmation on their decision-making process.
C4. If there were no Heating System Rebates program, which of the following actions would you have taken? 2023 MSHP Biomass ETS Sample Size 14 14 - - Kept your existing heating system 36% 36% - - Kept your existing heating system and purch...
AI summary This question explores how respondents would have acted if the Heating System Rebates program did not exist. The data shows that 36% would have kept their existing heating system, 21% would have kept their system and purchased an air conditioner, and 36% would have purchased a heat pump.
C5. If there were no Heating System Rebates program, which of the following actions would you have taken? 2023 MSHP Biomass ETS Sample Size 7 7 - - Kept your existing heating system 29% 29% - - Purchased a heat pump 71% 71% - - Base: Respo...
AI summary This section presents a survey result indicating that 71% of respondents would have purchased a heat pump even without the Heating System Rebates program, assuming they had a working air conditioner and had not previously decided to install a heat pump.
2023 MSHP Biomass ETS Sample Size 79 79 - - 10 - Definitely 15% 15% - - 9 3% 3% - - 8 4% 4% - - 7 8% 8% - - 6 1% 1% - - 5 9% 9% - - 4 0% 0% - - 3 3% 3% - - 2 3% 3% - - 1 3% 3% - - 0 - Definitely not 51% 51% - - Don't know 1% 1% - - Refused...
AI summary The table presents survey results on customer perceptions of heat pumps and other heating systems in Nova Scotia. It shows that 51% of respondents definitely would not install a heat pump, while only 15% would definitely install one. The mean rating is 3.3, indicating generally low satisfaction or interest.
C6. If there were no Heating System Rebates program, what is the likelihood that you would have postponed the purchase of a heat pump by at least one year? Please answer on a scale of 0 to 10, where 0 is "Definitely not" and 10 is "Definit...
AI summary The question asks about the impact of removing the Heating System Rebates program on the purchase timing of heat pumps, using a scale from 0 to 10.
C7. Were you aware that high efficiency heat pumps that operate at temperatures below -15°C were available before you heard about the Heating System Rebates program? 2023 MSHP Biomass ETS Sample Size 79 79 - - Yes 70% 70% - - No 27% 27% -...
AI summary The question asks whether respondents were aware of high efficiency heat pumps operating below -15°C before the Heating System Rebates program. The table shows 70% of respondents were aware, 27% were not, and 4% were unsure, based on those who had already decided to install heat pumps or would have done so regardless of the program.
C8. Before you heard about the Heating System Rebates program, had you already made the decision to install a highefficiency heat pump model? 2023 MSHP Biomass ETS Sample Size 55 55 - - Yes 84% 84% - - No 16% 16% - - Base: Respondents who...
AI summary The question asks whether respondents had already decided to install a high-efficiency heat pump before learning about the Heating System Rebates program. The data shows that 84% of respondents had already made the decision, while 16% had not.
C9. Efficiency Nova Scotia gave a rebate of $ for your new high efficiency heat pump. If you had not received the rebate from Efficiency Nova Scotia, would you have paid the total cost of your high-efficiency heat pump? Please answer on a...
AI summary Efficiency Nova Scotia provided a rebate for a high-efficiency heat pump. The question asks whether the respondent would have paid the full cost of the heat pump without the rebate, on a scale from 0 to 10.
Responses of 'Don't know' and 'Refused' are excluded from the table C10A. I would like you to rate the influence of the following three factors in your decision to install a high-efficiency heat pump. Use a scale from 0 to 10 where 0 is "N...
AI summary The text prompts respondents to rate the influence of three factors in their decision to install a high-efficiency heat pump, using a scale from 0 to 10.
The program rebate 2023 MSHP Biomass ETS 79 79 - 16% 16% - 3% 3% - - 11% 11% - - 6% 6% - - 3% 3% - - 14% 14% - - 6% 6% - - 5% 5% - - 5% 5% - - 1% 1% - - 29% 29% - - 0% 0% - - 0% 0% - - 30 30 - - 4.6 4.6 - - - - Base: Respondents who instal...
AI summary The document presents a table detailing program rebate percentages for different technologies, including MSHP (mini-split heat pumps), Biomass, and ETS (Electric thermal storage) in 2023. The base for these rebates is respondents who installed mini-split heat pumps.
Responses of 'Don't know' and 'Refused' are excluded from the mean calculation C10B. I would like you to rate the influence of the following three factors in your decision to install a high-efficiency heat pump. Use a scale from 0 to 10 wh...
AI summary The text asks respondents to rate the influence of three factors on their decision to install a high-efficiency heat pump, using a scale from 0 to 10, with 0 being 'No influence' and 10 being 'Great influence'.
Responses of 'Don't know' and 'Refused' are excluded from the mean calculation C10C. I would like you to rate the influence of the following three factors in your decision to install a high-efficiency heat pump. Use a scale from 0 to 10 wh...
AI summary The text asks respondents to rate the influence of three factors in their decision to install a high-efficiency heat pump on a scale from 0 to 10, with 0 indicating no influence and 10 indicating great influence.
Information on the benefits of high efficiency heat pumps provided by the retailers or contractors 2023 MSHP Biomass ETS 79 79 - - 42% 42% - - 8% 8% - - 18% 18% - - 5% 5% - - 4% 4% - - 8% 8% - - 3% 3% - - 3% 3% - - 4% 4% - - 1% 1% - - 6% 6...
AI summary The document provides information on the benefits of high efficiency heat pumps installed by retailers or contractors in 2023, with data presented in a table showing various metrics for mini-split heat pumps (MSHP), biomass, and electric thermal storage (ETS).
HEATING SYSTEM REBATES (GREEN HEAT) PROGRAM EVALUATION
AI summary The document is titled 'HEATING SYSTEM REBATES (GREEN HEAT) PROGRAM EVALUATION,' indicating it involves an assessment of a program aimed at providing rebates for heating system upgrades as part of a green energy initiative.
APPENDIX XII Green Heat Distributor Interview Guide
AI summary This document is an appendix containing an interview guide for distributors involved in the Green Heat program, providing a framework for assessing their roles and performance in the distribution of green heating technologies.
Table 1: Overview of Data Collection Activity Descriptor This Instrument Instrument Type Interview Guide Estimated Time to Complete 15 min. Target Audience Distributors of mini-split heat pumps Expected Number of Completions n = 5 Contact...
AI summary The document outlines data collection activities focused on mini-split heat pumps, including interview guides, timelines, and research objectives. The study targets distributors and explores market size, product adoption, and rebate programs.
[PROBE: Please think of your most popular standard model. What is this model and what is its current selling price? ] B7. And what would be the average price of a high-performing cold climate MSHP with a 12,000 Btu/hour cooling capacity? R...
AI summary The probe asks about the most popular standard model and its current selling price, with a specific question about the average price of a high-performing cold climate MSHP with a 12,000 Btu/hour cooling capacity.
C. Market Size of Mini-Split Heat Pumps Now, I would like to specifically discuss your sales of MSHPs, and here we are talking about all MSHP sales not just high-performing MSHPs. C1. To the best of your knowledge, did your overall sales o...
AI summary The discussion focuses on the sales trends of mini-split heat pumps (MSHPs) from 2021 to 2023. The inquiry seeks to determine whether sales increased, decreased, or remained the same, along with the percentage change and the reasons behind the trend, including factors such as federal incentives, the impact of the COVID-19 pandemic, supply chain issues, renovation demand, and inflation.
2021 Response (if available) 2023 Letter on the Curve Why do you think that? Mini Split Heat Pumps E3. How do you expect the MSHP market to evolve in the next two years (2024 – 2025)? What makes you say that?
AI summary The document asks about the expected evolution of the Mini Split Heat Pump (MSHP) market from 2024 to 2025, seeking reasons for the anticipated changes.
Table 7: 2023 NHC Overestimation Ratio Values Scenario OR To-code Model – With Neither Heat Pump nor Wood/Pellet Stove 9% As-built Model – With Heat Pump 0% As-built Model – Without Heat Pump 19%
AI summary Table 7 presents the 2023 NHC overestimation ratio values for different scenarios, including models with and without heat pumps, showing varying levels of overestimation.
[DO NOT ACCEPT A RANGE – POSE D14 – D15 SEQUENCE IN ORDER/DO NOT RANDOMIZE; REPEAT SCALE ONLY AS NECESSARY] D14. If there was no program rebate or financing, what is the likelihood that you would have installed exactly the same high-effici...
AI summary This question asks about the likelihood of installing a high-efficiency heat pump without program rebate or financing, focusing on the impact of financial incentives on customer behavior.
0-10 SCALE WITH END POINT LABELS– RECORD NUMBER - 98. Don't Know - 99. Refused - D15. [ASK IF [D12](#page-22-2) OR [D13](#page-23-1) ≥5] If there was no program rebate or financing, what is the likelihood that you would have postponed inst...
AI summary The text presents a 0-10 scale for respondents to rate the influence of various factors on their decision to install high-efficiency heat pumps, with specific questions about program rebates, financing, and likelihood of postponing installation.
Base: DIY respondents who installed HVAC upgrades and received a rebate and financing for the heat pumps
AI summary The text refers to DIY respondents who installed HVAC upgrades and received a rebate and financing for heat pumps.
D14. If there was no program rebate or financing, what is the likelihood that you would have installed exactly the same high-efficiency heat pump that were rebated or financed through the Program? 2023 2021 Sample Size 20 8 MEAN 1.6 4.6 Me...
AI summary The question asks about the likelihood of installing the same high-efficiency heat pump without program rebate or financing. The data shows a mean response of 1.6 in 2023 and 4.6 in 2021, indicating a lower likelihood in 2023 compared to 2021.
D15. If there was no program rebate or financing, what is the likelihood that you would have postponed installing the heat pumps by at least one year? 2023 2021 Sample Size 7 4 MEAN 4.6 6.5 Mean excludes responses of 'Don't know' and 'Refu...
AI summary The question asks about the likelihood of postponing heat pump installation without program rebates or financing. The table shows mean responses for 2023 and 2021, indicating a decrease in the likelihood of postponement over time.
Interactive Effects on Heat Pump Heating Since the interactive effects factors for electrical heating are based on a heating system efficiency of 100%, some adjustments are necessary for homes that use a heat pump as a primary heating syst...
AI summary The document discusses adjustments to interactive effects factors for homes using heat pumps as primary heating systems, noting that these systems have an efficiency higher than 100%. It references data from 2018 and 2019 EPI participants, and calculates an adjusted interactive effects factor of -26.4% for heating based on the COP of a standard mini-split heat pump.
Other DHW Measures For the remaining DHW measures, interactive effects are nil, with the exception of HPWHs. For HPWH measures, interactive effects are already included in the engineering equation used to calculate the unitary savings valu...
AI summary The text discusses DHW (Domestic Hot Water) measures, noting that interactive effects are nil except for HPWHs (Heat Pump Water Heaters), which already account for interactive effects in their engineering calculations.
(3) Heat Pump Water Heater
AI summary The document section discusses the topic of Heat Pump Water Heater, likely in the context of energy efficiency programs or regulations, though no further details are provided in the text.
Installation Rates Installation rates for heat pump water heaters are estimated at 100% due to their relatively high cost. 51 Ecotope inc., NEEA Heat Pump Water Heater Model Validation Study , 2015.
AI summary The installation rate for heat pump water heaters is estimated at 100%, attributed to their relatively high cost. The estimate is based on a 2015 study by Ecotope inc. titled 'NEEA Heat Pump Water Heater Model Validation Study'.
Table 49: Peak Demand-to-energy Ratios for Space Heating Measures Measure Peak Demand-to energy Ratio (W/kWh) Source Mini-split Heat Pumps Central Air-source Heat Pumps N/A Ground-source Heat Pumps Wood Stoves/Fireplace Inserts N/A Pellet...
AI summary Table 49 presents peak demand-to-energy ratios for various space heating measures, including heat pumps, wood and pellet stoves, and thermostats. The table includes data sources and assumptions, highlighting the energy efficiency of different technologies.
(1) Mini-split Heat Pumps
AI summary The section discusses mini-split heat pumps, which are a type of heating and cooling system. These systems are relevant in the context of energy efficiency and residential programs.
Table 50: Mini-split Heat Pump Measure Summary Parameter Green Heat HEA MHEEP Reference Measure Description and Identification Measure Description Mini-split heat pumps for high-efficiency space heating Additional Notes Fully electrically...
AI summary Table 50 provides a summary of the Mini-split Heat Pump Measure, including details on installation rates, effective useful life, and energy savings parameters. The table compares two programs, Green Heat and HEA, and references additional information in subsections of the document.
Table 51: Unitary Peak Demand Savings Values for Mini-split Heat Pumps Variable Symbol Green Heat Source Rated heating capacity of the new heat pump at outdoor air temperature of -15°C [kBTU/h] 𝐻𝐶𝑚𝑖𝑛 Specification data for each installed s...
AI summary The table presents unitary peak demand savings values for mini-split heat pumps, including variables like rated heating capacity and coefficient of performance at -15°C. For models lacking data at -15°C, savings are considered nil or adjusted using performance ratios and simulation software.
Summary [Table](#page-197-1) 52 presents a summary of the values used to calculate central air-source heat pump (CASHP) savings. The detailed methodology follows.
AI summary Table 52 summarizes the values used to calculate central air-source heat pump (CASHP) savings, with a detailed methodology provided in the following text.
Table 52: Central Air-source Heat Pump Measure Summary Parameter Green Heat HEA Reference Measure Description and Identification Measure Description Central air-source (air-to-air and air-to-water) heat pumps for high-efficiency space heat...
AI summary Table 52 provides a summary of the Central Air-source Heat Pump Measure, including parameters such as installation rate, effective useful life, and energy savings calculations. The table references various subsections and modeling techniques used in the analysis.
Table 53: Unitary Peak Demand Savings Values for Central Air-source Heat Pumps Variable Symbol Green Heat Source Rated heating capacity of the new heat pump at outdoor air temperature of -15°C [BTU/h] 𝐻𝐶𝑚𝑖𝑛 26,261 Average specification dat...
AI summary Table 53 presents unitary peak demand savings values for central air-source heat pumps, including parameters such as heating capacity, coefficient of performance, and calculated peak demand savings. The data is based on average specifications from the 2022 Green Heat tracking sheet.
(3) Ground-source Heat Pumps
AI summary This section discusses Ground-source Heat Pumps, which are a type of heating and cooling system that uses the stable temperature of the ground to provide energy-efficient climate control. It introduces key acronyms and concepts related to heat pump technologies.
3.3.3 Space Heating Measures
AI summary This section discusses space heating measures, focusing on initiatives and programs aimed at improving energy efficiency in residential and commercial buildings through technologies such as heat pumps and building retrofits.
Measure Name Program Component EUL Value Source Space Heating Mini-split Heat Pumps Green Heat, HEA, AMH 18 GDS, 2007 (Table 1 – Residential Measures, value for AC/heat pumps) Central Air-source Heat Pumps Green Heat, HEA 18 GDS, 2007 (Tab...
AI summary The document outlines various energy efficiency measures with their respective Energy Use Life (EUL) values, including heat pumps, air sealing products, and thermostats. These measures are part of programs such as Green Heat and EPI, with EUL values sourced from different organizations and studies.