Up to 21 SSE customers in Maidenhead High Street are without power this morning.
The power cut came at about 8.20am and engineers are on site looking to solve the issue. The cause is not yet known.
The company hopes to have power restored by 11.45am.
A spokesman apologised for the inconvenience caused.
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The Met Office has issued a yellow alert for Windsor and Maidenhead, Slough and Wokingham, warning that rain moving eastwards across the south of the country may turn to snow in some places.