Community Choice Aggregation (CCA) was passed as California state law in 2002, to enable local communities to stop purchasing power from for-profit utilities, and instead assume the role themselves of providing electricity to their residents and businesses.

It allows the people of San Francisco to form a nonprofit cooperative for buying and generating electricity.

Using these new state granted powers, the San Francisco Board of Supervisors voted on June 19, 2007 to approve CleanPowerSF, a bold new project which will shift San Francisco to large scale renewable energy, and soon end our dependence on PG&E's polluting and high priced fossil fuel electricity.

The program will provide cheaper, more reliable energy through development of solar, wind power, efficiency, and conservation measures to meet 50% of the City's electricity needs within the next decade, and at the same or lower rates than PG&E.

CleanPowerSF will become the largest green energy project for any single city in the world, and lead the planet toward rapid and real solutions to the climate crisis.