The 2008-2009 Renewable Energy Design Guide & Catalog offers an extensive selection of field-tested renewable energy products, along with practical advice on system design, installation, and maintenance. It highlights the increasing attraction of renewable energy systems like solar, wind, and micro-hydropower due to technological advances, government incentives, and the growing need for energy independence. The catalog also features tax incentives, system designs, and various product options tailored for residential, commercial, and industrial applications.