PG&E crews responded to a power outage in Oceano and Grover Beach Monday night.
The outage was first reported at around 8:30 p.m.
According to the PG&E outage map, 450 customers were impacted.
Power was expected to be restored by 11:30 p.m.
PG&E says a crew is assessing the cause.
To view current power outages, click here.