March 17, 2026

CalMTA’s Residential Heat Pump Water Heating (HPWH) Market Transformation Initiative (MTI) aims to accelerate market adoption of heat pump water heaters in the single-family and small multifamily property sectors. HPWHs

MT Planning

January 27, 2026

This Market Characterization Report is an output of the Phase II research for the Residential Heat Pump Water Heating (HPWH) Market Transformation Advancement Plan, finalized in September 2024. The plan

Research & Papers

April 8, 2025

The Residential Heat Pump Water Heating fact sheet describes the opportunity, technology, market transformation strategy and equity considerations for this initiative. Residential heat pump water heaters (HPWHs) are two to

Fact Sheets & Case Studies

September 17, 2024

This Advancement Plan summarizes available information and essential research activities for the proposed Residential Heat Pumps Water Heating Market Transformation Initiative (MTI). It represents the Phase I stage gate deliverable

MT Planning

The California Market Transformation Administrator (CalMTA) develops and manages market transformation initiatives in the state to reduce energy use and reduce greenhouse gas (GHG) emissions.

CalMTA seeks to help meet California’s energy efficiency and decarbonization goals by accelerating adoption of energy-efficient products and practices through market transformation. Market transformation is a proven strategic process of intervening in a market to create lasting change.
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CalMTA follows a rigorous process for reviewing, scoring, and then developing relevant, timely market transformation initiatives. The process supports market transformation initiative creation from concept to program development to market deployment, as well as the eventual exiting of the market.

The Market Transformation Advisory Board (MTAB) provides expertise and unbiased, non-binding recommendations on CalMTA’s market transformation initiatives. Register here for an upcoming advisory board meeting.

Learn more about CalMTA’s planning and research on energy efficient technologies and our work to build California’s market transformation portfolio, and access quarterly and annual progress reports.

Want to learn more? Join our mailing list to stay informed about upcoming meetings and events, RFI and RFP announcements, and more.  

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We welcome your questions and suggestions.

Have questions or comments about CalMTA?
Use our contact form to connect with us, or reach out to:

CalMTA

Resource Innovations
719 Main Street, Suite A

Half Moon Bay, CA, 94019

(888) 217-0217

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All Advisory Board meetings are open for public comment. If you’re unable to share your thoughts during an MTAB meeting, access our comment form to to provide your opinion.

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