"Wind and solar, used to produce H, used in solid cells, is expensive, with one exception... it is almost completely environmentally friendly."

Well, SOLAR is not ( currently) environmentally friendly to PRODUCE. I agree the production of ENERGY is, but the production of solar panals and cells are NOT. Look at the whole life-cycle: Production, operation, and End-of-life disposal.

Now, geothermal and tidal, on the other hand... but who wants to give up their beaches?