GM Will Use EV Batteries to Store Renewable Energy: Page 2 of 2

vehicles will feature big batteries -- some in excess of 60 kWh.

The idea of using those batteries for grid back-up is gaining momentum now because more big corporations are committing to the idea of 100% renewables. GM is one of three automakers, along with BMW Group and Tata Motors, appearing on the RE100, a global list of businesses that plan to procure 100% of their energy from renewable sources.

Battery-based grid storage would provide a boost to such companies because it would enable them to use their own renewable power, instead of buying credits from renewable energy providers. To make it more viable, however, the cost of batteries needs to continue to drop, experts say.

“It’s an expensive route,” Robinson said. “But the technology exists right now. It’s just a matter of the economics.”

Senior technical editor Chuck Murray has been writing about technology for 32 years. He joined Design News in 1987, and has covered electronics, automation, fluid power, and autos.

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