Pecan Street, which is developing and testing technologies and business models for smart grids and advanced energy management systems, is outfitting the grid in Mueller with more analysis equipment. It is now taking a variety of usage data on 35 homes and will be studying many more there in the future. It will also work with other sustainable neighborhood projects to brainstorm creative solutions. For example, McCracken notes, although time-of-day rates could indeed influence homeowners' recharging patterns, other solutions might be possible. San Diego Gas & Electric is finding that customers who own electric cars are much more likely to install rooftop solar panels. Those panels often reach peak output during the late afternoon on hot, sunny days—just when residents in Mueller tend to plug in their cars. So perhaps special solar-power incentives for homeowners who drive electric vehicles would be a fruitful way to lessen peak demand as the cars proliferate.