As an aspiring rocket scientist, Ben Glass was thrilled to get a Course 16 undergraduate internship at SpaceX, Elon Musk’s spaceflight company. It was, he says, a fantastic experience at a great organization, but his main lesson was less about technology than about himself.
“I realized I’d be a terrible fit at a big company,” he recalls. That realization, and a longtime interest in clean energy, propelled Glass into his current role as cofounder, CEO, and CTO of Altaeros Energies, a four-year-old startup based in Somerville, Massachusetts, seeking to commercialize airborne wind turbines that can bring steady, economical electricity to remote communities and industrial sites. Altaeros’s tethered helium-filled balloon, or aerostat, lifts a turbine as high as 600 meters, tapping into high-altitude winds that are more consistent and stronger than ground-level winds.
“Remote sites usually depend on diesel generators; the power typically costs 30 to 35 cents per kilowatt-hour, and can go over 50 cents,” compared to an on-grid national average of just under 11 cents, explains Glass. “Our first 30-kilowatt product should be extremely competitive at the most remote sites, and we’ll quickly scale to a 200-kilowatt system that will be the lowest-cost option at almost any site using diesel.” The aerostat can also carry telecom equipment, cameras, and other payloads.
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