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Ralph, I think I'm paying around $0.19 per kW-hour and my regional power cost is high (So Cal). $0.25 in ten years doesn't sound like a bargain. I like the idea of a decentralized grid but the lowest-cost clean solution, without government sponsorship, should win.
In ten years you may be right, that solar or whatever alternative source will be cheap enough. The solar energy storage cost (cracking water in your example) still has to be paid for. I think it is more likely that natural gas generators proliferate, even though I'd prefer to see nuclear investment. The Bloom Energy fuel cell has an outrageous efficiency (and can run on more than natural gas), natural gas reserves continue to grow, and that fuel cell achieves a similar decentralized effect as solar.
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