Solar is NOT a Substitute for Oil
Actually there is one more thing to be said on the prior topic.
During the Solar Summit apparently some people still think solar is a replacement for oil.
“She [Giffords] often says, ‘If oil literally rained from the sky, you can bet we would all keep our buckets handy. With solar energy, we have an oil substitute that does fall from the sky. We need to get smart about capturing it.,’ ” Carusone said.
Solar generates electricity which is used almost exclusively for fixed energy consumption. Oil is turned into transportation fuels and chemical feed stocks. Although electricity and oil are both "energy," there is almost no substitution between the two.