E-2EOne (NSUARB) RIR - 1 to 7
5 passages
1 Request IR-01: 2 3 In EfficiencyOne's (EOne) Q3 2024 Demand Side Management Report (Q3 Report), EOne noted 4 that a billing analysis to update the HOT2000 modelling software overestimation ratio was 5 planned for the 2024 DSM Evaluation....
AI summary EfficiencyOne (EOne) is asked about the HOT2000 model's calculation of energy savings, overestimation ratio, and recalibration process. EOne explains that HOT2000 is developed by Natural Resources Canada and calculates energy savings by comparing baseline and modified building designs.
The HOT2000 model can overestimate energy savings primarily because it often makes simplifying assumptions about building construction and occupant behaviour. Factors such as inconsistent installation quality and variable homeowner usage p...
AI summary The HOT2000 model may overestimate energy savings due to simplifying assumptions about building construction and occupant behavior. E1 adjusts for this by applying overestimation ratios derived from regression models and independent evaluations to more accurately reflect actual energy consumption in programs like Home Energy Assessment.
in the billing analysis, a regression model was built to express the energy consumption and compared to the heating consumption obtained in the HOT2000 software to calculate the overestimation ratios. 1 (b) As part of the 2024 DSM Evaluati...
AI summary The 2024 DSM Evaluation includes a billing analysis using AMI data to assess energy savings from the Home Energy Assessment program. Econoler, E1's independent consultant, is developing adjustment ratios to correct HOT2000's overestimation of savings. Results will be included in the 2024 DSM Evaluation Reports due in March 2025.
1 ratios for the new version of HOT2000 at that time, version 11. The billing analysis served 2 to compare each participant's electricity billing consumption to the electricity consumption 3 obtained from the HOT2000 simulation models. The...
AI summary The document discusses overestimation ratios for the HOT2000 software used in energy efficiency programs. It highlights that in 2018, the billing analysis showed overestimation ratios of 19% for participants without heat pumps, while those with heat pumps had 0% overestimation. E1 plans to apply adjustment ratios from the 2024 DSM Evaluation to improve accuracy in tracked savings calculations.
3 (d) Please see E1's response to part (c) of this IR response. 4 5 (e) E1's independent evaluation consultant recommends when billing analyses should be 6 performed to update overestimation ratios for HOT2000, which is done on an as neede...
AI summary E1's independent evaluation consultant recommends performing billing analyses to update overestimation ratios for HOT2000 as needed. The most recent analysis was done in 2018, and another was conducted as part of the 2023 DSM Evaluation, though the results were inconclusive. A new billing analysis is currently being performed as part of the 2024 DSM Evaluation, expected to be filed by March 31, 2025.