The Manx Electricity Authority says the power cut in Onchan this morning (Tuesday) was caused by a fault in an underground cable.
The MEA says the 11 kilovolt cable fed around 2,000 homes.
The power went off at around 7.15 am, and was restored shortly after 8am.
The MEA said engineers had isolated the faulty section of cable and would work through the day to fully repair the problem.
Customers were not expected to be affected by the work.
Mountain Road reopens
Route has been closed since Wednesday due to icy conditions
Patients 'strongly satisfied' with virtual GP pilot
Service to be evaluated before decision on whether to expand to other practices
Island to mark the golden anniversary of the Millennium of Tynwald
Tynwald Ceremony Arrangements Committee to oversee the organisation
Douglas Council looking for residents views on the future of Noble's Park
Local authority wants to know what could be improved in the area
Tynwald backs major overhaul of Isle of Man planning system
A more efficient, user-friendly process is promised