Sheri Koones, an award-winning author from Greenwich, released this month her latest book “Prefabulous + Almost Off the Grid: Your Path to Building an Energy-Independent Home,” published by Abrams.

In the book, Koones profiles more than 30 of the most energy-efficient homes in the United States. The book is described as a “user-friendly guide” revealing how homebuilders can achieve similar results with the help of floor plans, resource lists, explanations of the latest technologies and photographs. Providing the foreword is fellow Greenwich resident and actor Robert Redford.

“These almost off-the-grid homes, which take energy from the grid when necessary and return any excess energy produced, are healthier, quieter inside, and far cheaper to operate,” according to Abrams. “As energy costs continue to rise, energy independence is becoming increasingly essential, and as this book shows, the almost-off-the-grid home is a solution that is achievable for everyone.”

Koones is an established authority on home construction and a “strong” proponent of prefabrication. She is the author of five books, including Abrams’ “Prefabulous + Sustainable,” a contributor to AOL Real Estate, and a freelance writer and speaker. Thisbook is available for $24.95. For more information, visit www.abramsbooks.com.