An outage that occurred at about 9:20 a.m. Tuesday morning left about 1,600 Palo Alto customers without power, according to a city official.
The outage, whose cause is not yet known, hit the Midtown neighborhood between West Bayshore Road and Middlefield Road and all along Middlefield Road from at least East Meadow north to Homer Avenue.
Other streets affected were Louis Road, Seale Avenue, Channing Avenue and Lincoln Avenue, said Debra Katz, utilities communications manager for the City of Palo Alto.
The outage ended by 12:20 p.m. for all but about 60 customers, according to the Utilities Department website. Most of those are commercial customers along Middlefield.
Power was restored to around 800 customers north of Colorado Avenue by 10:45 a.m., Katz said. While the city initially estimated the outage affected 1,950 affected customers, that figure was revised down to 1,500-1,600 by late morning.
As of 12:20 p.m., the city reported, "The problem area has been isolated to a circuit between 2900 and 3100 Middlefield, but the cause is still unknown. Multiple crews are onsite working to get the remaining customers restored."
Crews worked throughout the outage to "check each major circuit to find the cause of the outage and are restoring power to the circuits once they verify it is safe to do so," according to the city's website.
William Phelps, a resident who lives near Ohlone Elementary School, said at 9:40 a.m. power in his house was out when he returned home.
Another resident of the Palo Verde neighborhood, south of Colorado, said the power went out in her house at about 9:25 a.m.