Seattle Steam is a privately-owned utility that provides reliable and sustainable heat to approximately 200 buildings in Seattle's Central Business District and First Hill neighborhoods. Seattle Steam's mission is to deliver a reliable, cost-effective and efficient source of heat that benefits its customers, the environment and the Seattle community.

Seattle Steam is a District Energy system. In a District Energy system, heat is produced at a centralized plant and distributed by underground lines to nearby buildings. District Energy systems are in operation throughout the world.

50 percent Carbon
Footprint Reduction

Seattle Steam has converted to renewable energy sources, and reduced the carbon footprint of its operations and its customers. Learn more about the conversion to biomass.

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Faces of Seattle Steam

Who We Are

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191 Satisfied Customers

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115 years of experience

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24-hours a day service

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7 days a week — every week

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2 state-of-the-art production plants

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But just ONE goal: Provide reliable, cost-effective thermal energy while reducing our environmental footprint.