Danielle Fong

Danielle Fong (born October 30, 1987) is a Canadian scientist and entrepreneur. She was the co-founder and chief scientist of LightSail Energy, and as of late 2025 is working at another startup, LightCell Energy.

Education Fong was born in Halifax, Nova Scotia, and was raised in Dartmouth. At age 12, she enrolled in Dalhousie University, where she got her Bachelor of Science in Physics and Computer Science in 2005 at age 17. She joined the plasma physics program at Princeton University as a Ph.D. candidate, but later dropped out at age 20.

LightSail Energy

In 2009 at Berkeley, California, Fong co-founded LightSail Energy with entrepreneur Stephen Crane and Edwin P. Berlin Jr. LightSail Energy developed a form of compressed air energy storage, which was termed regenerative air energy storage (RAES). The company was initially backed by Khosla Ventures.

LightSail raised over $70 million, including $2 million from Nova Scotia's Innovacorp, a government owned enterprise. In 2016 it pivoted to producing transport modules for natural gas. with Khosla Ventures retaining the patents.

LightCell Energy In 2022, Fong founded Lightcell, an early stage company to design small self-contained devices which would turn fuel into electricity by heating salt until it radiates, absorbing that monochromatic light into specially designed solar cells, managing the heat produced, and recycling the sodium internally.

Recognition In 2011, Fong was featured in Forbes "30 Under 30" entrepreneurs under the Energy category and interviewed by Forbes. She was named by the MIT Technology Review in their 2012 "Innovators Under 35" list. In 2013, Fong was included in Times "30 Under 30" list.

Fong was a speaker at the Women 2.0 PITCH Conference & Competition in 2012.