The city of San Francisco plunged into darkness on the intervening night of Saturday and Sunday, with nearly a third of the city being affected by a power outage.As the outage hit, more than 130,000 houses and businesses were left without power, mostly in the northwest part of San Francisco, while transportation in the city, including self-driving cars, grinded to a halt.Some parts of the city, such as Richmond, Sunset, Presidio, and Golden Gate Park, were among the worst hit.As of early Sunday morning, nea ...