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high-altitude wind

Altaeros balloon boosts wind turbine power

Startup Altaeros Energy is going up for more energy.

The company yesterday said it has successfully tested a prototype of its airborne wind turbine, which is a traditional small wind turbine enclosed in an inflatable shell. The Boston-based company is seeking to partner with others to build and test a commercial-scale turbine.

Altaeros Energy is one of a few companies developing systems to capture the stronger and steadier winds at high altitudes. Others include Makani Power, Joby Energy, and Windlift.

For its prototype test in Maine, Altaeros Energy placed a Southwest Skystream turbine, which is normally placed on a pole, … Read more

Lightweight wing harvests offshore wind

It's a flying wing, a power generator, and a robot.

Startup Makani Power is developing a wind turbine that's a big break from convention. If it works, it could slash the cost of wind power, particularly offshore.

The company has nearly finished testing flights for a 30-kilowatt prototype turbine and will soon begin work on a larger, commercial-scale system, according to CEO Corwin Hardham. The goal is to complete development and testing that full-scale, 600-kilowatt system by 2016, he said.

Makani Power, which was originally funded by Google and later by the Department of Energy's ARPA-E agency, … Read more