At least 26,000 customers were without power on Thursday morning in Contra Costa County's Blackhawk neighborhood, PG&E reported.
The outage was first reported at 7:22 a.m. and the cause of the outage was unknown.
San Ramon police said all eastbound Crow Canyon Road was being diverted at Camino Ramon. They estimated Crow Canyon Road would remain closed in both directions at Alcosta Boulevard for at least two hours.
At CrossFit Danville, two men working out put up an Instagram video saying "No power, no problem." One man is cycling without power, while his workout pal eggs him on.
A video posted by Crossfit Danville (@crossfitdanville) on