Southern Energy Price Cap Rates
Current period rates (1 July to 30 September 2026).
Direct debit
Electricity: 26.42p/kWh, 49.70p/day
Gas: 7.53p/kWh, 28.53p/day
Prepayment
Electricity: 25.62p/kWh, 49.70p/day
Gas: 7.32p/kWh, 28.53p/day
Postcode areas: MK and surrounding Southern region areas
Estimated annual dual fuel cost at TDCV: £1,865
Previous period comparison: April to June 2026 rates were lower than the July to September 2026 quarter.