The RTF uses building energy simulation to develop climate zone specific energy savings estimates for both residential and commercial measures. For measures that are weather dependent, the RTF uses a consistent methodology to determine savings across the region given a variety of climates. In 2018, the RTF worked to improve its methodology for selecting representative weather stations for use in these building energy simulations.
That updated methodology can be found here.
In a later expansion of this methodology, the RTF also explored the energy impacts of extreme weather events. The memo produced by that work can be found here.
Below are materials that support the RTF's weather dependent energy savings analyses.
File | Upload Date | Notes |
---|---|---|
Climate Zone Calculation Workbook v3.2 (67 MB) | 12/19/2022 | "Utility List" sheet has been updated to correct errors in the formulas assigning HZ and CZ to each utility based on HDD and CDD. |
Climate Zone Weather Station Analysis Workbook v2.1 (49.6 MB) | 10/12/2022 | QC complete |
All TMYx for PNW Workbook (228.3 MB) | 10/12/2022 | QC Complete |
Weather File Recommendation Memo | 07/07/2022 | Methodology memo recommending TMYx. |
TMYx Weather Files (Box Folder) | 09/12/2022 | Climate data files from Climate.OneBuilding.Org |
Past Climate Zone Files | Upload Date | Notes | |
---|---|---|---|
Climate Zone Calculation Workbook v3.1 (67 MB) |
|
QC complete | |
Climate Zone Calculation Workbook v3.0 (61.9 MB Excel) | 07/07/2022 | Undergoing QC | |
Climate Zone Weather Station Analysis Workbook v2.0 (49.6 MB Excel) | 07/07/2022 | Undergoing QC | |
Climate Zone Calculation Workbook v2.3 (126 MB Excel) | 10/15/2021 | Corrected an error discovered in the previous version that impacted HDD and CDD values for a select number of NCEI climate normal sites. | |
Climate Zone Calculation Workbook v2.2 (88.1 MB Excel) | 08/30/2021 | QC Complete | |
Climate Zone Elevation Workbook v2.0 (34 MB Excel) | 05/17/2021 | QC Complete | |
Climate Zone Characteristics TMY3 v1.0 (72 MB Excel) | 05/17/2021 | QC Complete | |
Climate Zone Calculation Workbook v2.1 (89 MB Excel) |
07/19/2021 |
Undergoing QC |
|
Climate Zone Calculation Workbook v2.0 (17 MB Excel) |
05/17/2019 |
QC Complete |
|
02/19/2019 | Undergoing QC | ||
Climate Zone Characteristics TMY3 (72 MB Excel) |
02/19/2019 | Undergoing QC | |
Climate Zone Elevation Workbook (34 MB Excel) |
02/19/2019 | Undergoing QC | |
RTF_ClimateZoneCalculation_v1_2.xlsx (21 MB Excel) |
09/27/2017 | QC review complete. | |
07/10/2017 |
Climate Zone Presentation/Explanation |
||
AllTMY3forPNW_CDDcalculatedHourlyv1_1.xlsx (233 MB Excel) |
09/27/2017 | Updated version. Corresponds to Climate Zone file 1.2 | |
07/10/2017 | Supporting workbook | ||
07/10/2017 |
Supporting workbook, updated with version 1.1. | ||
07/10/2017 |
Undergoing QC. |
||
6/4/2013 | |||
PNW Utility Climate Zone Assignments |
6/4/2013 |