Site includes updates on daily power shortages .
Provides tips for consumers on how to conserve energy. From the Sacramento Bee. From the U.S. Department of Energy. Most small businesses in San Diego, California's second-largest city, say high energy costs threaten their ability to stay afloat and have forced them to raise prices, according to a survey released on Thursday. The Independent System Operator, which operates the electric grid, has estimated that California could face 30 to 35 days of blackouts across the state this summer.