Single-Family Residential, 2025 Energy Code
Program Name | Research Versions Available | Contact Information | Additional Information |
---|---|---|---|
California’s Building Energy Code Compliance Software – Residential (CBECC-Res) |
CBECC-Res 2025.0.2 RV contains the 2025 systemwide life cycle cost and hourly source energy factors, and 2025 weather data. This research version is based on CBECC-Res 2022.2.0 and contains the 2022 standard designs and ruleset. Latest Research Version |
California Energy Commission |
See the CBECC-Res Website for:
Support: cbecc.res@energy.ca.gov |
Nonresidential and Multifamily, 2025 Energy Code
Program Name | Compliance Software Versions | Contact Information | Additional Information |
---|---|---|---|
California’s Building Energy Code Compliance Software (CBECC) |
CBECC 2025.0.4 RV contains the 2025 long-term systemwide cost and hourly source energy factors, and 2025 weather data Additional CBECC 2025 building prototypes are available on the CBECC project website. |
California Energy Commission Building Standards Office 715 P Street, MS 37 Sacramento, CA 95814 ATTN: RJ Wichert 916-897-3450 cbecc@energy.ca.gov |
See the CBECC Website for:
Support: cbecc.com@energy.ca.gov |
Help With the Energy Code
For assistance with understanding or locating information in the Energy Code, contact the Energy Standards Hotline at: 800-772-3300 (toll-free in California); 916-654-5106 (outside California); or via email at title24@energy.ca.gov.