The idea of using electric cars to store energy for the power grid is a good one, I think. Unfortunately, it may be too expensive at this time to make any sense, according to one recent cost analyst. The same high cost problems that have hindered electric cars in the past mean it may not make sense for the future even beyond 2020, unless the costs come down.

Then again, advancements in battery technology seem to be happening on a daily basis, so maybe it doesn’t make sense today, but tomorrow could be a different story.

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