Cleaner Tech
Khosla-Backed Energy Startup Nabs $258 Million to Help Power Data Centers
Mainspring Energy’s generators are able to run on different types of gas, including carbon-free hydrogen.
Mainspring Energy's linear generator core at the company's manufacturing facility in Menlo Park, California.
Photographer: Spencer Lowell for Bloomberg GreenThis article is for subscribers only.
A startup that builds novel generators has raised $258 million, fueled by the tailwinds of power-hungry artificial intelligence.
Mainspring Energy Inc. counts among its customers a unit of NextEra Energy Inc., one of the world's biggest renewable energy suppliers, as well as a growing number of data center customers that use the company’s so-called linear generators as a source of power. The technology works by creating a flameless reaction of air and fuel that helps produce electricity.