Hydrogen to electricity?

Here’s a good candidate for the silliest energy idea I’ve heard in a while:


Larry Burns, the vice president for R&D; at GM, notes that 4% of cars equal the power generation ability of the entire current electric grid, and dreams of a future where fuel cell vehicles are used to generate electricity while parked. This is great because hydrogen can come from a wide variety of sources, so as long as each community has their own tailor-made method for generating it, we can use the cars to cheaply generate electricity. Finally, we can close the loop on this convenient diagram from wikipedia:

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