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Bill

HB 1514

Encouraging the deployment of low carbon thermal energy networks.

2025-2026 Regular Session Introduced by Liz Berry and 5 co-sponsors

Washington authorizes and incentivizes district thermal energy networks to provide renewable heating/cooling, reducing building emissions and energy costs while establishing regulatory frameworks.

Effective date 7/27/2025.
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Bill Summary · HB 1514

Legislative bill overview

HB 1514 establishes regulatory and financial frameworks to encourage development of low-carbon thermal energy networks in Washington State. These networks distribute heating and cooling through underground piping systems powered by renewable or waste heat sources, offering an alternative to individual building heating systems. The bill became law on May 13, 2025, and takes effect July 27, 2025.

Why is this important

Heating and cooling account for roughly half of building energy consumption in the U.S., making thermal networks a potentially significant tool for reducing carbon emissions and energy costs. The legislation could accelerate deployment of this proven European technology in Washington, particularly benefiting urban areas and new developments while potentially reducing energy bills for connected customers.

Potential points of contention

  • Upfront infrastructure costs: Installing district thermal networks requires substantial capital investment and long-term planning, raising questions about who bears costs and how projects become economically viable
  • Customer lock-in concerns: Once connected, buildings may have limited alternatives for heat/cooling providers, potentially reducing competitive pressure on service providers and pricing
  • Regulatory clarity gaps: The bill's effectiveness depends on implementing regulations that balance developer incentives against consumer protections, environmental standards, and grid reliability—areas where stakeholder disagreement commonly arises

Compiled from official sources — confirm details with the bill’s official record.

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