FILE - One of Pacific Gas & Electric's Diablo Canyon Power Plant's nuclear reactors in Avila Beach, Calif., is viewed Nov. 3, 2008. California's last operating nuclear power plant could get a second lease on life. Owner Pacific Gas & Electric decided six years ago to close the twin-domed nuclear power plant by 2025. But Democratic Gov. Gavin Newsom, who was involved in the agreement to close the reactors, has prompted PG&E to consider seeking a longer lifespan for the plant. (AP Photo/Michael A. Mariant, File)