Power has been restored to hundreds of homes after thunderstorms swept across the county on Friday.
UK Power Networks said more than 300 people in the area around Lenwade, Lyng, Honingham, Dereham and Scarning had been affected due to an overhead electricity line fault.
They said they had become aware of the power cut at just after 6pm and engineers had gone to the scene.
Power was not restored until around 1.30am.
Michelle Tolley, who lives in Sparham, and has been affected by the cut said it was "absolutely disgraceful".
She tweeted: "The power cut in Norfolk is totally unacceptable. We have many elderly people where we live who are vulnerable and alone."
UK Power Networks replied to her that power cables had come down because of a snapped pole. They said: "Due to the location of the pole it has made the repairs very difficult, but our teams are working as quickly as they possibly can."
There were also faults which caused issues in the Wymondham, Fakenham, Litcham, Reepham, Blakeney and Holt areas,
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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