Geothermal energy is a naturally occurring, local resource that heats many buildings and homes in Boise. With one of the oldest and largest geothermal systems in the world, we’ve been keeping our city warm with clean, renewable energy for generations.
Current customers can access their account information below.
For updates about geothermal outages, please call (208) 608-7200 then press "2" to listen to a recorded message.
TTY: 711
Buildings connected to the city’s geothermal system are marked with a special plaque. Keep an eye out for this marker on offices, restaurants and community spaces downtown, and across the Boise State University campus. Geothermal energy is local, reliable and good for our planet. By using it, our community cuts thousands of tons of carbon emissions each year, equal to taking more than 2,000 gas-powered cars off the road.
Geothermal water has kept Boise warm for thousands of years, from hot springs to homes and high-rise buildings. Learn more about the history of geothermal in Boise below.
Boise’s geothermal system runs on naturally heated water, the same kind you’d find in a hot spring. The City of Boise pipes geothermal water from underground to buildings, where it’s used for heating. After heating the buildings, the geothermal water is piped back underground to be naturally reheated and used again, creating a closed-loop system. This unique design guarantees clean, reliable heat for Boise today and for generations to come.
All around downtown, you'll find geothermal plaques on buildings including JUMP, City Hall, Treasure Valley YMCA, Boise State University and more. Explore for yourself on a 1-mile geothermal walking tour from City Hall to the geothermal injection well in Julia Davis Park.
The City of Boise’s geothermal system is growing! Developers who are interested in this local, sustainable, clean energy resource can contact us for a free consultation at geothermal@cityofboise.org.
The Boise Warm Springs Water District provides geothermal heating to homes and businesses in the East End. Learn more about this historic geothermal district and contact them for information about geothermal heating in the east end on their website.
Thank you for your interest in Boise's geothermal system. Please fill out the form below and a representative from Public Works will be in touch with you.