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Boise officials want to increase geothermal heating

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BOISE, Idaho (AP) — The city of Boise is looking to expand its geothermal heating system by 40% as part of a goal to become carbon neutral by 2050.

The city pumps 250 million gallons of 177-degree geothermal water to 96 buildings through 21 miles of pipes.

City officials tell The Idaho Statesman that's about 2% of the city's energy resources.

The city says the heated water comes from a river of geothermally heated water flowing under the nearby foothills.

The water is heated by the Idaho Batholith, a massive igneous intrusion of granite producing heat through decay of isotopes like uranium, thorium, and potassium.

Article Topic Follows: Idaho

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