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Energy Review

Octopus Energy · London · VAT included

Which Octopus Energy tariff would be cheapest for you?

This models what the last twelve months of real prices would have cost a household of a stated shape. It is a comparison of the past, not a prediction of your next bill.

Electricity prices differ by distribution region, so this changes every figure below.

Your postcode is sent once to Octopus Energy’s public region lookup — the same one they bill from. We do not put it in the URL, analytics or database, and do not keep it.

What you have

Leave anything blank that you would rather not say — not knowing never rules a tariff out, it only leaves its requirements on show.

Octopus Energy import tariffs, cheapest first

On the ordinary household, single-rate meter profile at 2,500 kWh a year, using prices from 2025-08-06 to 2026-08-06.

The Ofgem price cap for this region works out at £822 a year on the same consumption — 26.35p per kWh plus 44.78p a day. Cap period 2026-07-01 to 2026-09-30.

  • Agile Octopus

    £653a year

    20.34p per kWh on this profile, plus 39.54p a day. That is £169 below the price cap over the same year.

    Across 12 complete months it ranged from 17.26p in April 2026 to 23.71p in March 2026.

  • Intelligent Octopus Flux

    £766a year

    24.43p per kWh on this profile, plus 42.42p a day. That is £57 below the price cap over the same year.

    Across 12 complete months it ranged from 22.47p in April 2026 to 26.26p in March 2026.

  • Octopus Flux

    £849a year

    27.75p per kWh on this profile, plus 42.42p a day. That is £26 above the price cap over the same year.

    Across 12 complete months it ranged from 26.71p in April 2026 to 29.17p in March 2026.

Too little history to rank alongside

These have fewer than nine months of complete prices in the window — usually because they are new. Their figures are real but cover a different, shorter period, so they are not comparable with the list above.

  • Octopus Tracker

    £745a year

    23.62p per kWh on this profile, plus 42.42p a day. That is £77 below the price cap over the same year.

    Across 4 complete months it ranged from 21.57p in April 2026 to 24.82p in July 2026.

    Measured over 136 complete days rather than the full year, so this figure is not comparable with the ones above it.

  • Flexible Octopus

    £784a year

    24.90p per kWh on this profile, plus 44.29p a day. That is £38 below the price cap over the same year.

    Across 3 complete months it ranged from 24.90p in April 2026 to 24.90p in April 2026.

    Measured over 91 complete days rather than the full year, so this figure is not comparable with the ones above it.

  • Intelligent Octopus Go

    £879a year

    28.72p per kWh on this profile, plus 44.12p a day. That is £57 above the price cap over the same year.

    Measured over 3 complete days rather than the full year, so this figure is not comparable with the ones above it.

  • Octopus Go

    £882a year

    28.83p per kWh on this profile, plus 44.12p a day. That is £60 above the price cap over the same year.

    Measured over 3 complete days rather than the full year, so this figure is not comparable with the ones above it.

  • Cosy Octopus

    £959a year

    31.93p per kWh on this profile, plus 44.12p a day. That is £137 above the price cap over the same year.

    Measured over 3 complete days rather than the full year, so this figure is not comparable with the ones above it.

A 4 kWp array is modelled as generating about 3,600 kWh a year and exporting 50% of it — 1,800 kWh. Every figure below is that volume at each tariff's real export rates for London.

Octopus Energy export tariffs, best paid first

On the solar export profile at 1,800 kWh a year, using prices from 2025-08-06 to 2026-08-06.

Too little history to rank alongside

These have fewer than nine months of complete prices in the window — usually because they are new. Their figures are real but cover a different, shorter period, so they are not comparable with the list above.

  • Outgoing Octopus

    £270earned a year

    15.00p per kWh exported, plus 0.00p a day.

    Across 7 complete months it ranged from 15.00p in August 2025 to 15.00p in August 2025.

    Measured over 207 complete days rather than the full year, so this figure is not comparable with the ones above it.

What the export estimate assumes

  • 900 kWh generated a year for each kWp installed, which is the lower end of the usual UK range and does not account for your roof’s direction, pitch or shading.
  • 50% of that exported rather than used in the house, which is the usual split for a home without a battery.
  • Generation is not varied by region. A southern array does out-generate a northern one, but this site holds no yield data to put a figure on it, so it is left out rather than guessed at. The export rates themselves are real and do vary by region.

The rates are real and regional; the volume is an estimate. If you have an export meter reading, use it — a year of your own figures beats any model of your roof.

How these figures were worked out

Each tariff’s real half-hourly prices for London were weighted by when the ordinary household, single-rate meter profile uses electricity, averaged over every complete day in the window, then multiplied by 2,500 kWh a year with the standing charge added on top.

The profile is an assumption, not a measurement of you. If you have your own half-hourly data, the smart-meter replay costs your actual readings against these tariffs in your browser, which is exact where this is modelled.

  • Overnight 00:00–06:00 sits at the base level, which is standing load rather than activity.
  • A morning rise from 06:00 to 09:00, a shallower daytime from 09:00 to 16:00.
  • The evening peak runs 16:00–22:00 and is highest between 18:00 and 20:00, at about three times the overnight base.
  • This is our shape, not Elexon’s published coefficients — see the module header for why.

Full method in our tariff pages, and every figure is inc-VAT on a direct debit basis.