Book excerpt: Are you looking for creative ways to lower your energy costs, generate more of your own power, or become less reliant on the grid? Paul Scheckel offers practical advice for taking matters into your own hands. Explaining the fundamentals of solar, wind, water, and biofuel energy production, Scheckel shows you how to build and maintain a wide variety of energy-saving and energy-producing equipment, ranging from thermosiphon solar hot water collectors to bicycle-powered generators. Use less energy, save money, and help preserve the environment.