Power has now been restored to around 300 homes in North Walsham following 'essential maintenance work' carried out today.
UK Power Networks had previously written to all those affected explaining that important work was necessary on the network.
The power supplies were interrupted from around 8.30am today and power was restored to all affected customers by 2.20pm - two hours earlier than planned.
A spokesman from UK Power Networks said: 'The power supplies [were] interrupted to enable engineers to carry out essential maintenance work on the high voltage underground electricity network, serving the local area.
'We always work as quickly as is safely possible and if we are able to reconnect supplies sooner than predicted we will do so.
'We do appreciate how difficult it is to be without electricity and would like to thank customers for their understanding.'
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here