If you decide to buy one of the books or periodicals below, remember to support your local community by using a sticks and bricks non-chain bookseller. Wind Green energy sources are renewable energy sources. They are primarily solar energy sources.
Conservation is currently the least expensive source of energy.
Energy efficiency is of particular importance when we talk about building and financing power systems. A BTU saved is a BTU that doesn't have to be produced. A smaller power plant is usually a cheaper power plant. Flavin, Christopher, and Nicholas Lenssen. The Transition to a Post-Petroleum World , W. W. Norton and Company, New York, 1977.