Boise Secures $1 Million for Innovative Geothermal Housing Project

Feb 28, 2026, 2:57 AM

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Boise, Idaho, has made headlines after being awarded $1 million to implement a geothermal heating and cooling system for multifamily affordable housing. This initiative, funded by Bloomberg's Mayors Challenge, positions Boise as a pioneer in utilizing direct-use geothermal energy for affordable housing, a feat that has not been accomplished in the United States to date.

The funding aims to address the pressing issue of rising utility costs, which significantly impact housing affordability. Mayor Lauren McLean emphasized that housing affordability extends beyond just rent, highlighting the need for families to afford utilities, groceries, and transportation.

Boise boasts the nation's largest direct-use geothermal system, which currently provides heating and hot water to around 100 buildings in the downtown area. However, until now, connecting multifamily housing developments to this geothermal network has faced challenges, primarily due to regulatory and billing issues. The feasibility study funded by Bloomberg Philanthropies has paved the way for a public-private partnership to advance this project, which is expected to be built in the Lusk District and completed by 2028.

Once operational, the geothermal system is projected to reduce utility costs for residents by as much as 80%, significantly easing the financial burden on families. This innovative use of geothermal energy not only aims to provide heating but also explores the potential for cooling, further enhancing its utility for residents in the region.

The Mayors Challenge, which attracted over 600 cities worldwide, seeks to spur local government innovation to improve essential services. Boise's project was selected for its innovative approach and potential impact on community welfare. Each winning municipality is set to receive operational support in addition to the monetary grant, allowing cities to scale their tested innovations effectively.

The geothermal heating initiative represents a crucial step in addressing environmental concerns as well. Geothermal energy is recognized for being cleaner and more cost-effective than conventional electricity sources, aligning with national goals for sustainable energy utilization. As cities across the US grapple with climate change and rising energy costs, Boise's pioneering project could serve as a model for similar initiatives in other urban areas.

In conclusion, Boise's award from the Mayors Challenge not only highlights the city's commitment to sustainability and housing affordability but also positions it as a leader in the innovative use of geothermal energy. As the project unfolds, it promises significant savings and sustainable living solutions for hundreds of families in the region.

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