Residents of an Essex town claim they have had five power cuts in 12 days although supplier EDF Energy says it is not aware of any problem.
A number of streets in Hatfield Peverel near Chelmsford have experienced problems with the outages lasting up to four hours in some cases.
An EDF Energy spokesman said: "We are not aware of any specific underlying problems with the network in Essex."
The company added that it was investing £400m in its electricity network.
One resident, Bernie Herd, told BBC Radio Essex: "It doesn't necessarily take out the whole street, but our block of two, then the next block would be on and somebody else will be out down the road."
EDF Energy added: "Faults can occur from time to time on our network for a variety of reasons.
"This year we are investing over £400m in the networks we operate on projects to maintain, improve and extend the network to cater for growth in demand for service."
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