Learn what it will take to create tomorrow's net-zero energy home as Lawrence Berkeley National lab scientists reveal the secrets of cool roofs, smart windows, and computer-driven energy control systems. Iain Walker will explores net-zero energy houses that generate as much energy as they use. Mary Ann Piette discusses how new technologies are enabling buildings to listen to the grid and adjust demands based on fluctuating electricity prices. Bruce Nordman explores digital networks that will allow homeowners to save energy. Series: "Lawrence Berkeley National Laboratory " [Science] [Show ID: 19343]