How rooftop solar can stabilize the grid [News]

Rooftop solar power
systems are picking up a second job on the distribution grids that deliver electricity to California homes and businesses. Right now, their photovoltaic panels just generate electricity (meeting about 1 percent of the state's consumption), but within a few months some systems will also start moonlighting as junior grid regulators–a role that could keep them busy even after the sun goes down.