Re:Hydrogen production (Score 2, Informative)

I've done a tour of a pumped-storage power plant in North wales. Dinorwig (sp?) from memory. Anyway, it used cheap, off peak electricity to pump a metric buttload of water up to a reservoir on top of the mountain, and then generate power during the daytime and sell it back to the grid at peak rates. Big advantage was that you could go from 0 output to ** MW within a minute or two. Pretty amazing place, huge man made gallery inside the hill. http://en.wikipedia.org/wiki/Dinorwig_power_statio n