OpenStreamUnited Kingdom
United Kingdom · gas and electricity · Prices checked yesterday · 15 November 2026 · re-read daily

Cheapest prepayment energy tariff in Southern Wales

The cheapest gas and electricity tariff in Southern Wales on a prepayment meter, among the suppliers that publish their tariffs openly, is EDF PAYG Simply Tracker Jan28 at £1,645.77 a year at Ofgem's typical use, £50.33 below the price cap, as EDF's own tariff feed stated on 15 Nov 2026.

10 tariffs from EDF, Octopus Energy and E.ON Next ranked. Annual figures are for Ofgem's typical household (2,500 kWh of electricity and 9,500 kWh of gas a year, in force since 1 July 2026): unit rate x typical use + standing charge x 365. The price cap for Southern Wales on a prepayment meter comes to £1,696.10 on the same sum (Ofgem, 1 October to 31 December 2026). Prices from the suppliers that publish their tariffs openly: Octopus Energy (with Co-op Energy and London Power), EDF and E.ON Next (with Sainsbury's Energy); other suppliers are not listed.

The tariffs behind it

UK energy · read from each supplier's own tariff feed on 15 Nov 2026, with the page linked on each row.

  1. 1.EDF · PAYG Simply Tracker Jan28
    £1,645.77 a year at Ofgem's typical use
    electricity 25.74p per kWh and 48.56p a day · gas 7.80p per kWh and 23.10p a day · tracker, no term stated · £50 exit fee per fuel · £50.33 below the price cap
    Go to EDF
  2. 2.Co-op Energy · Co-op Key and Card
    £1,684.65 a year at Ofgem's typical use
    electricity 25.74p per kWh and 53.90p a day · gas 7.80p per kWh and 28.44p a day · variable, no term stated · no exit fee · £11.45 below the price cap
    Go to Co-op Energy
  3. 3.Octopus Energy · Flexible Octopus Smart Pay as You Go
    £1,684.65 a year at Ofgem's typical use
    electricity 25.74p per kWh and 53.90p a day · gas 7.80p per kWh and 28.44p a day · variable, no term stated · no exit fee · £11.45 below the price cap
    Go to Octopus Energy
  4. 4.Octopus Energy · Octopus Key and Card
    £1,684.65 a year at Ofgem's typical use
    electricity 25.74p per kWh and 53.90p a day · gas 7.80p per kWh and 28.44p a day · variable, no term stated · no exit fee · £11.45 below the price cap
    Go to Octopus Energy
  5. 5.E.ON Next · Next Flex - Prepayment
    £1,695.69 a year at Ofgem's typical use
    electricity 25.74p per kWh and 55.40p a day · gas 7.80p per kWh and 29.96p a day · variable, no term stated · no exit fee · £0.41 below the price cap
    Go to E.ON Next
  6. 6.EDF · PAYG Standard Variable
    £1,695.80 a year at Ofgem's typical use
    electricity 25.74p per kWh and 55.41p a day · gas 7.80p per kWh and 29.96p a day · variable, no term stated · no exit fee · £0.30 below the price cap
    Go to EDF
  7. 7.EDF · Prepay Standard Variable
    £1,695.80 a year at Ofgem's typical use
    electricity 25.74p per kWh and 55.41p a day · gas 7.80p per kWh and 29.96p a day · variable, no term stated · no exit fee · £0.30 below the price cap
    Go to EDF
  8. 8.EDF · PAYG Simply Fixed 2Yr Nov28v5
    £1,948.80 a year at Ofgem's typical use
    electricity 29.37p per kWh and 55.41p a day · gas 9.30p per kWh and 35.21p a day · fixed, no term stated · £100 exit fee per fuel · £252.70 above the price cap
    Go to EDF
  9. 9.EDF · PAYG Simply Fixed Apr28v4
    £2,021.54 a year at Ofgem's typical use
    electricity 30.98p per kWh and 55.41p a day · gas 9.85p per kWh and 29.96p a day · fixed, no term stated · £75 exit fee per fuel · £325.44 above the price cap
    Go to EDF
  10. 10.EDF · PAYG Simply Fixed Nov27v5
    £2,125.94 a year at Ofgem's typical use
    electricity 32.01p per kWh and 55.41p a day · gas 10.67p per kWh and 29.96p a day · fixed, no term stated · £50 exit fee per fuel · £429.84 above the price cap
    Go to EDF
Every tariff in Southern WalesThe price cap by regionUK energy

Related questions

How is the annual figure worked out?
Annual figures are for Ofgem's typical household (2,500 kWh of electricity and 9,500 kWh of gas a year, in force since 1 July 2026): unit rate x typical use + standing charge x 365. The unit rates and standing charges are each supplier's own, in pence, with VAT as its feed states it.
What is the price cap in Southern Wales?
The price cap for Southern Wales on a prepayment meter comes to £1,696.10 on the same sum (Ofgem, 1 October to 31 December 2026).
Is this every energy supplier?
Prices from the suppliers that publish their tariffs openly: Octopus Energy (with Co-op Energy and London Power), EDF and E.ON Next (with Sainsbury's Energy); other suppliers are not listed.

Where this comes from

Dated 15 Nov 2026. Nothing is estimated beyond arithmetic the page names, and no provider pays to appear.