Whidbey Sun & Wind, LLC. (Whidbey) is engaged in designing, sales and installation of renewable energy systems. The company specializes in hot water systems and swimming pool heating systems. It provides passive solar design, solar hot water, solar power systems and wind power systems. In addition, Whidbey product portfolio includes solar cooking oven, solar daylighting systems and solar fans. It also sells and installs abundant renewable energy wind turbines and towers from Bergey Windpower. The company is headquartered at Coupeville in Washington, the US.