The overall winner’s holistic approach to water conservation, recycling and storm water management includes a modular constructed wetland that helps filter and recycle graywater from the shower, clothes washer, and dishwasher—as well as a green roof that slows rainwater runoff to the landscape while improving the house’s energy efficiency
Integrated systems keep the house comfortable under a range of conditions. A liquid desiccant waterfall serves as a design feature and provides humidity control. Excess energy generated by the solar thermal array is harnessed. And a home automation system monitors and adjusts temperature, humidity, lighting, and other parameters.
Photos by Stefano Paltera/U.S. Department of Energy Solar Decathlon