Boise, Idaho, has become a pioneer in geothermal heating with nearly 500 buildings utilizing hot water from underground aquifers, showcasing an innovative approach to renewable energy.
Boise’s Geothermal Heating: A Hot Solution for Cold Winters

Boise’s Geothermal Heating: A Hot Solution for Cold Winters
In the heart of Idaho, Boise's geothermal heating system is leading the charge towards a sustainable future.
In the picturesque state of Idaho, Boise residents enjoy the unique benefit of harnessing geothermal energy for heating needs. The city's municipally run geothermal system taps into the abundant hot springs, allowing close to 500 local businesses, government structures, and residences—including hospitals, schools, and sports facilities—to access this eco-friendly heating source. Remarkably, the Idaho Statehouse is the only state capitol in the nation using geothermal heat, demonstrating Boise's commitment to sustainability.
The geothermal process is environmentally friendly, providing reliable and efficient heating without the pollution associated with traditional energy sources. The system relies on fault lines that enable groundwater to come in contact with hot rocks, raising temperatures to approximately 170 degrees Fahrenheit (about 77 degrees Celsius). Water is drawn from nearby foothills and circulated through a closed-loop network of pipes that deliver warmth directly into buildings before returning to the aquifer for reheating.
Furthermore, this innovative heating method not only warms homes but is also used to keep sidewalks clear of snow and enhance the temperature of hot tubs during winter months. Reflecting on the broader movement for local solutions to environmental challenges, Boise’s geothermal initiative stands out as a model for cities nationwide seeking cleaner energy alternatives.
The geothermal process is environmentally friendly, providing reliable and efficient heating without the pollution associated with traditional energy sources. The system relies on fault lines that enable groundwater to come in contact with hot rocks, raising temperatures to approximately 170 degrees Fahrenheit (about 77 degrees Celsius). Water is drawn from nearby foothills and circulated through a closed-loop network of pipes that deliver warmth directly into buildings before returning to the aquifer for reheating.
Furthermore, this innovative heating method not only warms homes but is also used to keep sidewalks clear of snow and enhance the temperature of hot tubs during winter months. Reflecting on the broader movement for local solutions to environmental challenges, Boise’s geothermal initiative stands out as a model for cities nationwide seeking cleaner energy alternatives.