Daily Archives: January 28, 2019

Road Runner Finally gets caught by Wile E. Coyote

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Misconceptions About Battery Storage

NOT A LOT OF PEOPLE KNOW THAT

By Paul Homewood

There is a very common misconception that battery storage can solve the problems of intermittency arising from renewable energy sources.

For instance, there was this little exchange on the Telegraph article today about wind farms along the HS2 route to power the trains:

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https://www.telegraph.co.uk/politics/2019/01/26/wind-farms-could-built-along-route-hs2-confidential-government/

What the public at large, represented by Mr Truth, don’t seem to understand is just how limited the amount of energy that can be stored really is.

As we know, Elon Musk sold his 100MW battery storage system to South Australia a couple of years ago. 100MW sounds impressive, but as his own specifications made clear the maximum output was only 129 MWh. And for this tiny amount of storage, the Australians paid an estimated A$150m, about £80m.

Hornsdale Battery Storage – South Australia

The only way to increase this capacity is keep building more and more batteries.

To put storage into perspective…

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