Water Heaters
Resources for determining deemed water heater measure savings are provided in the table below.
2020-11-05 - A 1-hour training video for the calculator is available here: DEER_Water_Heater_Calculator_v4.2_Training_2020-11-05.mp4
| Download | Title | Notes | Start Date | End Date | Date Posted | Actions |
|---|---|---|---|---|---|---|
| DEER Commercial Heat Pump Water Heater Calculator_V1.0.3.2 | DEER Commercial Heat Pump Water Heater Calculator — Calculator for estimating deemed commercial heat pump water heater (HPWH) savings in support of measure package updates. The tool provides prototype-based normalized electric and gas UEC/UES outputs, hourly load-shape outputs, equipment sizing calculations, documented assumptions and sources, version history, and a Read Me with acronym definitions. Prepared for CPUC by Quantum Energy Analytics. | 2026 May 14 | 2026 May 14 | See history | ||
| DEER Water Heater Calculator v6.0 | This version (6.1) includes updates to the permutation-generation macros. The newer macro buttons are located to the right of the original tool buttons and are labeled “NEW COM IMPACTS” and “NEW RES IMPACTS.” This version also updates the TechID nomenclature to align with the latest protocols. Additionally, a new normalization option has been added, allowing normalization to be based either on the measure-case values or the standard-case values, depending on the measure. This option can be selected in cell $M$5 of the EnImpacts-Com tab. The pre-existing IDs in the EnImpacts-Com and EnImpacts-Res tabs have also been updated to match the IDs in the Measure tab. Finally, the load shape CSV creation macro has been updated to include a status bar. | 2026 May 14 | See history | |||
| DEER Binning Tool, Commercial |
Binning tool used (for DEER Water Heater Calculator v.5.0) to establish efficiencies and characteristics of measure, code/standard, and pre-existing cases for commercial water heaters and boilers. |
2023 Jan 1 | 2022 Jan 23 | See history | ||
| DEER Binning Tool, Residential |
Binning tool used (for DEER Water Heater Calculator v.5.0) to establish efficiencies and characteristics of measure, code/standard, and pre-existing cases for residential water heaters. |
2023 Jan 1 | 2022 Jan 23 | See history | ||
| Central Multifamily HPWH EnergyPlus models |
EnergyPlus files for the Central Multifamily HPWH |
2023 Jan 1 | 2022 May 19 | See history | ||
| Documentation for DEER Water Heater Calculator |
This documentation describes the assumptions used by the DEER Water Heater Calculator v5.0 and the companion binning workbooks (residential and commercial). It also provides guidance for using the calculator to establish new water heating measures. |
2023 Jan 1 | 2022 Apr 5 | See history | ||
| DEER Water Heater Calculator | v5.1 in which the normalizing unit (NormUnit) was changed from Cap-kBTUh (to reflect the input capacity of the water heater) to CapOut-kBtuh (to reflect the output capacity of the water heater). It was necessary to do this to align the water heater equipment capacities for fuel substitution measures. No other changes were made to the workbook. | 2023 Jan 1 | 2022 Aug 29 | See history |