According to the Renewable Energy Transmission Initiative, east San Diego County, along with neighboring Imperial County and Northern Baja California, has a potential aggregate generating capacity of roughly 6,870 megawatts (MW) for solar energy, 3,495 MW for wind power and 2,000 MW for geothermal energy. Together, these renewable resources could potentially produce enough electricity to power 8 million homes at noon, on a sunny day, if the wind was turning windfarm turbine rotors at their theoretical maximum speed. Given Southern California capacity factors, however, of 28% for solar and 30% for wind, production at the quoted capacity would average one-third of that, or enough to power 2,666,000 homes.