Rex A. Ewing has lived off-grid with solar and wind energy since 1999. His energy books also include Power With Nature, HYDROGENHot Stuff Cool Science, and Crafting Log Homes Solar Style. Before moving to the mountains to concentrate on his writing, Rex raised Thoroughbred horses and ran an equine nutrition firm where he formulated and marketed a variety of products worldwide. In 1997 he penned a popular book on horse nutrition, Beyond the Hay Days. His articles on renewable energy and equine nutrition have appeared in numerous publications since the early 1990s.