LightSail believes that a low-cost grid-scale energy storage solution holds the key to unlocking the true potential of increasingly competitive renewable energies, optimizing power grids, democratizing access to energy, and helping to make the world a safer and better place for future generations. LightSail was founded in 2009 by Danielle Fong, Steve Crane and Ed Berlin.


Danielle Fong

Co-founder and Chief Scientist

Began PhD at 17 at Princeton Plasma Physics Lab

Responsible for the core thermodynamic innovation

Publishes essays at

Steve Crane

Co-founder and CEO

MIT and Caltech physicist

Veteran of five start-ups; more than one billion dollars in products shipped

Published author; studied physics, film-making, composition, and archaeology

Neel Sirosh

VP and General Manager of Energy Storage

Global leader in hydrogen and compressed natural gas tanks

Developed and commercialized first government certified carbon composite Type IV tanks – Thousands shipped

Ph.D. in Finite Elements (Calgary), MBA (UCI); Co-author of three books on clean energy


Investors in LightSail Energy: Kholsa Ventures, Founders Fund, Total Energy Ventures, Innovacorp, TriplePoint Capital, Peter Thiel, Bill Gates, and our honored but private investors

Contact Us

914 Heinz Avenue
Berkeley, CA 94710

P: 510 981 8088
F: 510 981 8286

Tank Development
795 Potter Street
Berkeley, CA 94710

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P: 510 644 8225
F: 510 644 8226