Around 100 residents in East Cowes have been affected by a power cut since the early hours.
SSE say the fault was reported just before 2am and engineers were on site within an hour.
They were able to re-route the power, bringing service back to half the affected customers by 5.30am.
The expected fault on an underground cable is being investigated now and around 50 customers are still without power.
SSE apologise to customers for the cut in service and say they would like to thank them for their patience as they work to resolve the issue.