A BLACKOUT hit Newquay's Watergate Bay area on Monday, leaving more than 100 households without power.
Some 103 homes and businesses lost electricity between 1pm and 8pm due to faults with overhead lines.
Jamie Oliver's Fifteen Cornwall restaurant was forced to close for the evening.
A spokesman for the restaurant said staff waited until 6pm, but with no sign of power being restored, they closed up.
The Watergate Bay Hotel was also affected by the power cut.
Will Ashworth, managing director at the hotel, said: "It appears some high voltage lines coming into Watergate Bay were faulty causing virtually all of our power systems to go down. Sadly it disrupted our normal operations but guests were extremely understanding. We got the barbecue out and tried to give our guests the best experience by candlelight, which I think went down quite well. The bar stayed open, which is the most important thing."
Mike Whitworth of Newquay iPhone Repair, commented on social networking website Twitter: "Whole of Watergate Bay in total darkness for hours. Powercut proper."
Western Power Distribution said engineers were sent out to deal with a problem with an overhead line.
An official from the energy company said: "We thought customers had been reconnected, then found out a second line was faulty, which is why it took until 8pm to sort out the issue.
"We are sorry for the inconvenience. All our customers have now been reconnected."