Mainspring Energy has adapted its linear generators so they can run on hydrogen or ammonia fuel, on top of widely available fuels such as natural gas and biogas. “The generator has passed key tests to ...

Toyota is hot on hydrogen fuel cells for its next-generation cars, but it’s not going cold on internal combustion just yet. The company’s R&D division has developed a Free Piston Engine Linear ...

A Mainspring linear generator in California. Mainspring Energy said it signed a memorandum of understanding with American Electric Power to pilot its linear generator technology in Oklahoma. The pilot ...

In partnership with Woodward, Inc., a global leader in controls in Fort Collins, CO, the team is developing a free-piston linear generator as an alternative internal combustion technology. It utilizes ...

Pacific Gas and Electric Company (PG&E) has deployed a "linear generator"—a new mobile power generation technology using natural gas and directed renewable biogas to displace existing diesel ...