Energy prices in Portsmouth 2026
Wondering how local energy costs compare? These figures give you a starting point, not a prediction of your own bill.
Portsmouth is in Ofgem's Southern England region, where the local electricity network is run by Scottish and Southern Electricity Networks (SSEN). Using that region's capped rates for 1 October to 31 December 2026, we estimate a typical Portsmouth household pays about £1,719 a year (£143 a month) for gas and electricity. That makes Southern England the 7th cheapest of Great Britain's 14 regions for a typical bill — £5 less than the GB average and £47 more than East Midlands, the cheapest region. Its electricity standing charge of 47.81p a day is the 3rd cheapest. Based on what a typical Portsmouth household actually uses (2,329 kWh of electricity and 8,205 kWh of gas a year), the estimate is £1,568 a year (£131 a month). Locally, solar installations per 1,000 households is 35.2 (Great Britain: 68.1) and public EV chargers per 100,000 people is 202.5 (UK: 174.9).
Energy in Portsmouth: the local picture
Estimate based on what a typical Portsmouth household actually uses
£1,568/yr (£131/month)
2,329 kWh electricity (£791) + 8,205 kWh gas (£777, for homes on the gas grid) on Southern England cap rates — £151 less than the Southern England typical-use estimate below.
Typical electricity use
2,329 kWh/yr
Below Great Britain (2,471 kWh/yr)
Typical gas use
8,205 kWh/yr
Below Great Britain (9,859 kWh/yr)
Homes not on the gas grid
14.9%
Below Great Britain (16.0%)
Solar installations per 1,000 households
35.2
3,038 installations
Below Great Britain (68.1)
Check a solar quotePublic EV chargers per 100,000 people
202.5
434 public chargers
Above UK (174.9)
EV charging cost calculatorHouseholds in fuel poverty
10.9%
Above England (9.9%)
Homes rated EPC C or above
50.2%
Below England (53.3%)
Sources: DESNZ, Subnational electricity consumption statistics (2024); DESNZ, Subnational gas consumption statistics (weather-corrected) (2024); DESNZ, Subnational estimates of properties not connected to the gas network (2024); DESNZ, Renewable electricity by local authority (number of solar PV installations) (End of 2025); Department for Transport, Electric vehicle charging infrastructure statistics (table EVCI0102) (1 July 2026); DESNZ, Sub-regional fuel poverty data 2026 (LILEE measure) (2024); ONS, Energy Performance Certificate (EPC) Band C or above, England and Wales (Up to March 2025).
Average gas and electricity bill in Portsmouth
Estimated monthly bill
£143
Estimated annual bill
£1,719
vs GB average
−£5
Estimates based on the Southern England region's rates, not measured Portsmouth bills: Ofgem's capped Direct Debit rates for 1 October to 31 December 2026 × Ofgem's typical use of 2,500 kWh electricity and 9,500 kWh gas a year. Electricity £836/yr, gas £883/yr. Source: Ofgem, rates checked 17 September 2026.
Your region
Electricity region: Southern England
Network operator: Scottish and Southern Electricity Networks (SSEN) — call 105 in a power cut.
Energy price cap rates are set by region, not by town, so Portsmouth shares its rates with every other town in Southern England, including Southampton, Oxford, Reading, Basingstoke and Slough.
How Portsmouth compares
| Measure | Southern England | Rank of 14 |
|---|---|---|
| Typical bill | £1,719/yr | 7th cheapest |
| Electricity unit rate | 26.47p/kWh | 7th cheapest |
| Electricity standing charge | 47.81p/day | 3rd cheapest |
A typical Portsmouth bill is an estimated £5 less than the GB average (£1,724) and £47 more than East Midlands, the cheapest region (£1,672).
Paying less than the cap in Portsmouth
The cap figures above are the most a Portsmouth supplier can charge on a standard variable tariff. A fixed deal priced below these rates is the way to pay less: compare its unit rate and standing charge with the Southern England figures, and check exit fees. Our switching guide covers the steps.
Work out my own billFrequently asked questions
What is the average electricity bill in Portsmouth?
Based on Ofgem's Southern England cap rates for 1 October to 31 December 2026 (26.47p/kWh and 47.81p a day), a typical household using 2,500 kWh a year would pay an estimated £836 a year for electricity, about £70 a month, by Direct Debit on a standard variable tariff. Based on typical local use in Portsmouth (2,329 kWh a year), the estimate is £791 a year.
What is the average gas bill in Portsmouth?
On the same Southern England cap rates, a typical household using 9,500 kWh of gas a year would pay an estimated £883 a year, about £74 a month. Based on typical local gas use in Portsmouth (8,205 kWh a year, homes on the gas grid), the estimate is £777 a year.
Who is the electricity network operator in Portsmouth?
Scottish and Southern Electricity Networks (SSEN) runs the electricity network in Portsmouth. It is not your supplier — call 105 (free) to report or check a power cut.
Is energy cheaper in Portsmouth than Brighton?
A typical household in Portsmouth (Southern England) would pay an estimated £1,719 a year, compared with £1,735 in Brighton (South Eastern England) — £16 less than Brighton, on Ofgem's cap rates for 1 October to 31 December 2026. Using each area's typical local use, the estimates are £1,568 a year in Portsmouth (Portsmouth) and £1,605 in Brighton (Brighton and Hove).
How many homes in Portsmouth have solar panels?
Portsmouth had 3,038 solar panel installations — 35.2 per 1,000 households, below the Great Britain figure of 68.1 (DESNZ, Renewable electricity by local authority (number of solar PV installations), End of 2025).