The utility that serves Candlestick Park is blaming San Francisco-owned equipment for the first of two embarrassing power failures during Monday Night Football.Candlestick Park is dimly lit during a power outage before an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011.Members of the Pittsburgh Steelers wait on the field during a second power outage, in the second quarter of the Steelers' NFL football game against the San Francisco 49ers in San Francisco, Monday, Dec. 19, 2011.San Francisco police officers stand on the field during a power outage during the second quarter of an NFL football game between the San Francisco 49ers and the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011.The Pittsburgh Steelers and the San Francisco 49ers wait on the field during a second round of power outages, during the second quarter of an NFL football game in San Francisco, Monday, Dec. 19, 2011.