People in 3,500 homes are without power after problems at a substation to the east of Southampton just before 1pm. Temporary power loss has affected areas including Sholing, Thornhill, Bursledon, Curdridge, Hedge End, Botley and certain surrounding areas.
Southern Electric said its engineers were working on the problem and hoped to have power back on in the majority of affected areas by 4pm.
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Dry but breezy tonight, cloud and some bright spells on Sunday.
Dry but breezy this evening and overnight with cloud and sunny spells tomorrow.
Mostly dry with sunny spells and a fresh south-westerly breeze.