February 18, 2014

MIT Technology Review

Storing the Sun

By Kevin Bulles

Aquion manufactures cheap, long-lasting batteries for storing renewable energy.

A new kind of battery invented by Jay Whitacre, a professor of materials science at Carnegie Mellon University and founder of the startup Aquion Energy, could make renewable electricity more practical and economical around the world. Aquion is about to start full-scale production of the batteries at a new factory in Mount Pleasant, Pennsylvania.

Whitacre says his batteries’ most promising near-term application lies in storing energy from solar panels or other renewable sources in off-grid homes or rural areas, providing a much cheaper 24-hour power source than a common alternative: diesel power. Lead-acid batteries are used for this purpose today, but they are toxic and require air-­conditioning to avoid deterioration in some climates, raising costs.

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