The California Energy Commission (Energy Commission) has approved the following energy analysis computer programs that includes all Alternative Calculation Methods approved for the 2019 Building Energy Efficiency Standards (2019 Energy Standards) in accordance with the California Code of Regulations: Title 24, Part 1, Article 1, Section 10-109.

The individual programs are listed below under specific categories. These are the only programs authorized to be used under the performance approach (energy budget) method of compliance for the 2019 Energy Standards.

Note: Price listings of proprietary programs are available from the vendors at addresses and telephone numbers listed.

Residential Buildings, 2019 Standards

Program Name Approved versions usable for permit Contact Information Additional
Information

California’s Building Energy Code Compliance Software – Residential (CBECC-Res)

CBECC-Res 2019.2.0 was approved 9/8/2021 for demonstrating performance compliance with the residential provisions of the 2019 Building Energy Efficiency Standards. Permit applications made on or after 1/1/22 must use CBECC-Res 2019.2.0. Download CBECC-Res 2019.2.0 setup (.exe file)

CBECC-Res 2019 versions 1.0, 1.1, 1.2, and 1.3 shall continue to be approved for demonstrating performance compliance with the residential provisions of the 2019 Building Energy Efficiency Standards until 12/31/21.

CBECC-Res 2019 Approved Software Archive (valid through 12/31/21):

CBECC-Res 2019 Resolutions:

California Energy Commission
Building Standards Office
1516 9th Street, MS 37
Sacramento, CA 95814
ATTN: Thao Chau
916-776-7974
cbecc.res@energy.ca.gov

Quick Start Guide

What’s New and Different

FAQs

User Manual

See the CBECC-Res Website for:

  • Software Archive
  • ACM Tests
  • Reference Documents

Support: cbecc.res@energy.ca.gov

Expiration Dates

EnergyPro

EnergyPro 8.3 was approved 12/31/2021 as an alternative calculation method for demonstrating performance compliance with the residential provisions of the 2019 California Building Energy Efficiency Standards.

Permit applications made on or after 1/1/22 must use EnergyPro 8.3 or newer software. Previously approved EnergyPro versions; 8.0, 8.1, and 8.2; are no longer valid for demonstrating compliance. See Expirations Dates document for details on approved compliance software versions.

EnergyPro 8.0 Residential Resolution
EnergyPro 8.1 Residential Approval
EnergyPro 8.2 Residential Approval
EnergyPro 8.3 Residential Approval

EnergySoft, LLC
1025 5th Street, Suite A
Novato, CA 94945-2413
415-897-6400

See the EnergyPro Website

Support: support@energysoft.com

Expiration Dates

Right-Energy Title 24

Wrightsoft Right-Energy Title 24 Version 2019.1.1 was approved on 02/20/2020 as an alternative calculation method for demonstrating performance compliance with the single family residential provisions of the 2019 California Building Energy Efficiency Standards.

Wrightsoft Right-Energy Title 24 Version 2019.1.1 is not valid for permit applications made on or after 1/1/22.

All 2019 Right-Energy Title 24 (Residential) resolutions

Wrightsoft Corporation
131 Hartwell Avenue
Lexington, MA 02421
800-225-8697
sales@wrightsoft.com

See the Wrightsoft Website

Support: support@wrightsoft.com

Expiration Dates

Nonresidential Buildings, 2019 Standards

Program Name Approved versions usable for permit Contact Information Additional
Information

California’s Building Energy Code Compliance Software – Commercial (CBECC-Com)

CBECC-Com 2019.2.0 was approved 9/8/2021 for demonstrating performance compliance with the nonresidential provisions of the 2019 Building Energy Efficiency Standards. Permit applications made on or after 1/1/22 must use CBECC-Com 2019.2.0. Download CBECC-Com 2019.2.0 setup (.exe file)

CBECC-Com 2019 versions 1.0, 1.1, 1.2, and 1.3 shall continue to be approved for demonstrating performance compliance with the nonresidential provisions of the 2019 Building Energy Efficiency Standards until 12/31/21.

CBECC-Com 2019 Approved Software Archive (valid through 12/31/21):

CBECC-Com 2019 Resolutions:

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-Com Website for:

  • SketchUp and OpenStudio SketchUp Plugin
  • Prototype Models & Tutorials
  • FAQ/Training
  • Software Archive
  • Quick Start Guide
  • User Manual

Support: cbecc@energy.ca.gov

Expiration Dates

EnergyPro

EnergyPro 8.3, using the simplified geometry two-dimensional (2D) option of the CBECC-Com API, was approved 12/31/2021 as an alternative calculation method for demonstrating performance compliance with the nonresidential provisions of the 2019 California Building Energy Efficiency Standards.

Permit applications made on or after 1/1/22 must use EnergyPro 8.3 or newer software. Previously approved EnergyPro versions; 8.0, 8.1, and 8.2; are no longer valid for demonstrating compliance. See Expirations Dates document for details on approved compliance software versions.

EnergyPro 8.0 Nonresidential Resolution
EnergyPro 8.1 Nonresidential Approval
EnergyPro 8.2 Nonresidential Approval
EnergyPro 8.3 Nonresidential Approval

EnergySoft, LLC.
1025 5th Street, Suite A
Novato, CA 94945-2413
415-897-6400

EnergyPro Website

Expiration Dates

FAQs

Support: support@energysoft.com

IES VE

Integrated Environmental Solutions Virtual Environment (IES VE) Title 24 2019 Version 1.1 was approved 1/18/2022 as an alternative calculation method for demonstrating performance compliance with the nonresidential provisions of the 2019 California Building Energy Efficiency Standards.

Permit applications made on or after 1/1/22 must use IES VE Title 24 Version 1.1 or newer software. Previously approved, IES VE Title 24 Version 1.0, is no longer valid for demonstrating compliance. See Expiration Dates document for details on approved compliance software versions.

IES VE Title 24 2019 Version 1.0 Resolution
IES VE Title 24 2019 Version 1.1 Approval

IES Ltd.

Helix Building
Kelvin Campus

West of Scotland
Science Pk.

Glasgow
G20 0SP
United Kingdom

ATTN: Liam Buckley
+1 617 840 6101
Title24@iesve.com

See the IES VE Website for:

  • Software Download
  • User Manual
  • Training & FAQs

Expiration Dates

Support:
support@iesve.com
+1 617 502 2085

Help With the 2019 Energy Standards

For assistance with understanding or locating information in the 2019 Energy Standards, 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.