Where the lights could go out

Alameda: 57,360 customers (Albany, Berkeley, Canyon, Castro Valley, Dublin, Fremont, Hayward, Livermore, Oakland, Piedmont, Pleasanton, San Leandro, Sunol)

Contra Costa: 48,824 (Alamo, Antioch, Brentwood, Byron, Canyon, Clayton, Concord, Crockett, Danville, Diablo, el Cerrito, el Sobrante, Hercules, Kensington, Knightsen, Lafayette, Martinez, Moraga, Orinda, Pinole, Pittsburg, Pleasant Hill, Port Costa, Richmond, Rodeo, San Pablo, San Ramon, Walnut Creek)

Marin: 86,813 (Belvedere, Bolinas, Corte Madera, Dillon Beach, Fairfax, Fallon, Forest Knolls, Greenbrae, Inverness, Kentfield, Lagunitas, Larkspur, Marshall, Mill Valley, Muir Beach, Nicasio, Novato, Olema, Point Reyes Station, Ross, San Anselmo, San Geronimo, San Rafael, Sausalito, Stinson Beach, Tiburon, Tomales, Woodacre)

Napa: 11,294 (Angwin, Calistoga, Deer Park, Lake Berryessa, Oakville, Pope Valley, Rutherford, St. Helena, Yountville)

San Mateo: 64,932 (Belmont, Burlingame, Daly City, el Granada, emerald Hills, Half Moon Bay, Hillsborough, La Honda, Loma Mar, Montara, Moss Beach, Pacifica, Pescadero, Portola Valley, Redwood City, San Bruno, San Carlos, San Gregorio, San Mateo, South San Francisco, Woodside, unincorporated communities in southwest San Mateo County)

Santa Clara: 27,093 (Coyote, Cupertino, Gilroy, Los Altos, Los Altos Hills, Los Gatos, Monte Sereno, Morgan Hill, Redwood estates, San Jose, San Martin) Solano: 10,232 (Fairfield, Suisun City, Vacaville, Vallejo)

Sonoma: 92,877 (Annapolis, Bodega, Bodega Bay, Camp Meeker, Cazadero, Cloverdale, Cotati, Duncans Mills, Forestville, Freestone, Geyserville, Glen ellen, Graton, Guerneville, Healdsburg, Jenner, Kenwood, Larkfield, Monte Rio, Occidental, Penngrove, Petaluma, Rio Nido, Rohnert Park, Sebastopol, Stewarts Point, Valley Ford, Villa Grande, Windsor)