Dandelion wants to make residential geothermal energy as affordable as rooftop solar. In the past, geothermal—which exploits the natural properties of the ground under a house—has been akin to major remodels. Which is to say: expensive and out of reach for everyday homeowners. Springing from Alphabet’s “moonshot factory,” Dandelion hopes to cut the cost by up to three-quarters.
Geothermal systems circulate water through loops dug into the soil. In the winter, heat, in the form of warmed water, is brought into the home, condensed, and transferred to the air. In the summer, the process is reversed, with water and heat transferred to the ground, thus cooling a home. Currently operating in upstate New York, Dandelion has developed its own purpose-built drilling rig and automated the drilling process, reducing the number of people it needs onsite. It also digs a narrower than normal hole, so there’s less waste and damage to your yard.