Building Decarbonization


The California Energy Commission’s 2018 Integrated Energy Policy Report (IEPR) Update found that greenhouse gas emissions from buildings are second only to transportation, and recommended developing a plan to assess the feasibility of significantly reducing greenhouse gas emissions from buildings.

In September 2018, Governor Brown signed two bills into law related to reducing greenhouse gas emissions from buildings, SB 1477 (Stern) and AB 3232 (Friedman). SB 1477 calls on the CPUC to develop, in consultation with the California Energy Commission, two programs (BUILD and TECH) aimed at reducing greenhouse gas emissions associated with buildings. AB 3232 calls on the Energy Commission to, by 2021, develop an assessment of the feasibility of reducing the greenhouse gas emissions of California’s buildings 40 percent below 1990 levels by 2030, working in consultation with the CPUC and other state agencies.

 In January 2019, the CPUC instituted a new rulemaking on building decarbonization (R.19-01-011). The proposed scope of the rulemaking includes: 1) implementing SB 1477; 2) potential pilot programs to address new construction in areas damaged by wildfires; 3) coordinating CPUC policies with Title 24 Building Energy Efficiency Standards and Title 20 Appliance Efficiency Standards developed at the Energy Commission; and 4) establishing a building decarbonization policy framework.

 For more information, contact Rory Cox at or 415-703-1093

 Proceeding information, rulings, and party comments can be read on the R.19-01-011 docket card:,5,RIR,57,RIR::

What's New

September 15, 2020 - Energy Division held a workshop on the Phase II staff proposal covering the Wildfire and Natural Disaster Resiliency Rebuild (WNDRR) program and the electric water heating baseline adjustments.  The final presentation slides are available here and the workshop recording is available here.

Fact Sheet - Heat Pump Water Heater Incentive Programs - July 1, 2020

Workshop on Incentive Layering for Building Decarbonization - June 30, 2020

Energy Division Staff Workshop: Assessing Data Needs for Building Decarbonization - June 17, 2020

CEC-CPUC Joint Agency Staff Workshop - Building Initiative for Low Emissions Development (BUILD) Program - June 15, 2020

Decision on Building Decarbonization Pilot programs: D.20-03-027 - April 6, 2020

Information on test for Fuel Substitution in Energy Efficiency - December 10, 2019

Fact Sheet - Building Decarbonization: Fact and Fiction - September 4, 2019

CPUC and CEC Joint Agency Workshop on SB 1477 Pilot Programs - July 30, 2019

Draft Staff Proposal for Implementation of SB 1477 Pilots - July 16, 2019

CPUC and CEC Joint Agency Workshop on Building Decarbonization, April 8, 2019 (Workshop details and presentations)





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