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Storing green energy

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(KGW)  We use batteries to charge our phones, computers and cars, so why not our electrical grid?

Engineers at Oregon's Bonneville Power Administration are testing the idea right now.

They're using a transportable battery storage system, basically a trailer full of batteries, to store electricity.

It's in the test phase right now, but engineers say it's proving to be about 85-percent efficient. Which means someday, we may be able to exist on a totally green grid.

"If we as consumers want to have power that comes on any time... and we want renewable intermittent power sources like wind and solar, then we really need to figure out the energy storage puzzle," said Jeff Hildreth, a BPA electrical engineer.

Read more at KGW

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