Our homes and buildings consume huge amounts of energy – up to 40 percent of all energy use in the US. Research at Berkeley Lab has greatly boosted energy efficiency in buildings but the challenge now is not just how much energy we use, but when we use it. We need to shift loads to times when there are plenty of renewables in our electric system, and reduce load at other times of the day. New technologies will get our energy production and our energy consumption talking to each other. Series: "Cal Future Forum: Our Changing World" [Science] [Show ID: 33078]