The price per KW of SPS

Charles Radley wrote,

"Fossil fuels can keep us going for a couple of centuries."

I agree. Even if we eventually run out of oil and/or coal, we could then
move on to using methane hydrates (c.f.
http://marine.usgs.gov/fact-sheets/gas-hydrates/title.html ). There's a
lot of hydrocarbons on this planet.

Ron Menich