right|thumb|Steam plant
CenTrio, formerly known as the Seattle Steam Company, is a district heating public utility that provides steam (generated by burning natural gas, diesel oil, and recycled wood) to over 175 businesses in downtown Seattle and on First and Capitol Hills via 18 miles of steam pipeline. Its plants are located on Western Avenue at Union Street, just west of Pike Place Market, and on Post Avenue at Yesler Way, in Pioneer Square.
About
Seattle Steam was founded in 1893 as the Seattle Steam Heat and Power Co. It owns 18 miles of pipes under the streets of Downtown. Its average winter output is of steam per hour; this drops to less than in the summer. In April 2021, Australian investment firm QIC partnered with Ullico to acquire "100% interest" in Enwave Energy's U.S. business, rebranding those operations (including Enwave Seattle) to CenTrio.
Gallery
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Image:Seattle Steam Company from Western.jpg|Main plant, seen here from Western Avenue
Image:Seattle Steam Company.jpg|Main plant, downtown
Image:Seattle - Post Steam Plant from south - B.jpg|Old Post Station, Seattle Steam Company (at center)
File:Seattle Steam Goes Green sign Western Avenue Seattle Washington.JPG|Sign on wood handling building on Western Avenue
File:New Seattle Steam plant Western Avenue downtown Seattle Washington.JPG|Wood handling building and storage silo
File:Seattle Steam plant Western Avenue Seattle Washington 2010.JPG|View of the main plant on Western Avenue
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See also
- Holly Steam Combination Company
- Utilities of Seattle