Scottish and Southern Energy is the first of the 'big six' energy providers to announce it's going to charge customers more for gas and electric.
SSE says it's average bills will rise 8.2%. But, there are regional variations - the south and south east has been hit with a 9.7% increase.
Average bills will rise by £106 pounds a year to £1,380.
The company say much of the bills are made up of costs outside their control.
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