Residents in areas of Braintree have suffered a series of short power cuts, according to reports on social media.
Marks Farm, the Kings Park estate and houses near The College at Braintree, as well as homes in Silver End and Gosfield, are believed to have been affected.
Shortly after 8pm, Michael Kemp, who is based in the Marks Farm area, wrote on the Braintree Times Facebook page: "Three power cuts in five minutes..seriously!
"Getting annoying now."
Another resident voiced her disappointment at missing parts of Britain's Got Talent.