"Renewable" isn't the best word for wind and solar, better would be "use-it-or-lose-it", either you harvest it or it dissipates into useless low grade heat. Usi

"Renewable" isn't the best word for wind and solar, better would be "use-it-or-lose-it", either you harvest it or it dissipates into useless low grade heat. Using more of it doesn't deplete the supply of it. Solar energy (and thus wind assuming otherwise constant environmental conditions) is only going to get more plentiful for next 5 billion years...