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Energy Review

Octopus Energy · Import tariff · VAT included

Cosy Octopus prices

Cheap electricity in set blocks through the day, built around heat pumps.

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.

Cosy Octopus is shaped for heat pumps. Rather than one cheap window overnight, it puts several cheap blocks through the day, so a heat pump can run hard when electricity is cheap and coast the rest of the time.

There is also an expensive block in the late afternoon and early evening, when demand across the country is highest. The band schedule above shows the current shape and prices for your region.

Showing West Midlands. Tariff code E-1R-COSY-22-12-08-E.

Average today
22.81p

weighted by how long each price lasts

Cheapest today
12.54p
Most expensive today
38.34p
Standing charge
57.35p

per day

Today’s price bands

Cosy Octopus repeats a daily shape rather than pricing every half hour separately, so the bands are the schedule.

Cosy Octopus price bands for today, pence per kWh, in local time
FromToHoursPrice
00:0004:004.025.56p
04:0007:003.012.54pcheapest
07:0013:006.025.56p
13:0016:003.012.54pcheapest
16:0019:003.038.34pmost expensive
19:0022:003.025.56p
22:0000:002.012.54pcheapest

This tariff does not publish a separate set of prices for tomorrow — the same daily pattern applies.

When to use electricity

  • Cheapest 3-hour run starts 04:00, averaging 12.54p per kWh.
  • Cheapest half hour today is 04:00 at 12.54p.
  • Most expensive is 16:00 at 38.34p, so it is worth avoiding heavy use then.

Against the price cap in West Midlands

The Ofgem cap for a single-rate direct debit meter here is 25.33p per kWh plus 59.71p a day. Today this tariff averaged 2.52p below the cap unit rate.

This compares one day’s unit rates only. What you pay also depends on the standing charge and on when you use electricity, so treat this as an indication rather than a saving. Cap period 2026-07-01 to 2026-09-30.

Estimated annual cost

£848a year

2,500 kWh a year in West Midlands, at 25.56p per kWh plus 57.35p a day standing charge.

Cosy Octopusprices change over time, but we do not yet hold enough days of them to take a meaningful average, so this uses the tariff’s standard rate — what you would pay having shifted nothing. Expect the real figure to be lower, and this estimate to sharpen as the price history builds.

Price history

The line is the average price for each day; the shaded band is the cheapest and most expensive price within it.

1 of 4 periods are only partly covered by stored prices and are shown as they are rather than filled in.

Show these 4 figures as a table
Last 30 days average, cheapest and most expensive prices, pence per kWh
PeriodAverageCheapestMost expensive
02 Aug23.98p12.54p38.34p
03 Aug22.81p12.54p38.34p
04 Aug22.81p12.54p38.34p
05 Aug22.81p12.54p38.34p

Prices by region

Cosy Octopus unit rate by region

The average price per unit on 2026-08-05. Where you live changes what you pay, because the cost of distributing electricity differs by network.

Hover a region for its figure, or select one to load its prices.

Tap a region to load its prices.

Eastern England23.81pEast Midlands22.60pLondon23.77pMerseyside and North Wales25.01pWest Midlands22.81pNorth East England22.73pNorth West England23.59pSouthern England23.85pSouth East England24.09pSouth Wales23.78pSouth West England23.84pYorkshire22.77pSouthern Scotland23.29pNorthern Scotland23.89p
Cosy Octopus unit rate by region. East Midlands is cheapest at 22.60p; Merseyside and North Wales is dearest at 25.01p. Full figures follow in the table below.Eastern England: 23.81pEast Midlands: 22.60pLondon: 23.77pMerseyside and North Wales: 25.01pNorth East England: 22.73pNorth West England: 23.59pSouthern England: 23.85pSouth East England: 24.09pSouth Wales: 23.78pSouth West England: 23.84pYorkshire: 22.77pSouthern Scotland: 23.29pNorthern Scotland: 23.89pWest Midlands: 22.81p
22.60p25.01p
Cosy Octopus unit rate by region, by region
RegionPer kWh
East Midlands22.60p
North East England22.73p
Yorkshire22.77p
West Midlands22.81p
Southern Scotland23.29p
North West England23.59p
London23.77p
South Wales23.78p
Eastern England23.81p
South West England23.84p
Southern England23.85p
Northern Scotland23.89p
South East England24.09p
Merseyside and North Wales25.01p

Northern Ireland has a separate electricity market and is not covered by these regions.

Cosy Octopus standing charge by region

The daily charge you pay before using any electricity at all. It varies more between regions than the unit rate does, and you cannot avoid it by using less.

Hover a region for its figure, or select one to load its prices.

Tap a region to load its prices.

Eastern England52.2pEast Midlands51.1pLondon42.4pMerseyside and North Wales68.0pWest Midlands57.3pNorth East England61.5pNorth West England44.9pSouthern England47.7pSouth East England52.8pSouth Wales54.9pSouth West England56.3pYorkshire61.7pSouthern Scotland62.8pNorthern Scotland56.3p
Cosy Octopus standing charge by region. London is cheapest at 42.4p; Merseyside and North Wales is dearest at 68.0p. Full figures follow in the table below.Eastern England: 52.2pEast Midlands: 51.1pLondon: 42.4pMerseyside and North Wales: 68.0pNorth East England: 61.5pNorth West England: 44.9pSouthern England: 47.7pSouth East England: 52.8pSouth Wales: 54.9pSouth West England: 56.3pYorkshire: 61.7pSouthern Scotland: 62.8pNorthern Scotland: 56.3pWest Midlands: 57.3p

Northern Ireland has a separate electricity market and is not covered by these regions.

Context

The price cap since Oct 18

A year of energy at typical consumption, paying by direct debit. This is the benchmark every tariff on this site is measured against, and it is a Great Britain figure rather than a regional one.

Oct 18Jul 26

The cap peaked at £3,582 in Jan - Mar 2023 and stands at £1,663 for July - Sept 2026.

Show every period
Ofgem price cap level by period, direct debit
PeriodCap level
July - Sept 2026£1,663
Apr - June 26£1,477
Jan - Mar 2026£1,584
Oct - Dec 2025£1,576
July - Sept 2025£1,541
Apr - June 25£1,655
Jan - Mar 25£1,561
Oct - Dec 24£1,543
July-Sept 2024£1,414
Apr-June 2024£1,521
Jan - Mar 2024£1,723
Oct - Dec 2023£1,641
July-Sept 2023£1,766
Apr-June 2023£2,762
Jan - Mar 2023£3,582
Oct - Dec 2022£2,972
2022 summer£1,673
2021/22 winter£1,093
2021 summer£979
2020/21 winter£899
2020 summer£967
2019/20 winter£979
2019 summer£1,039
2018/19 winter£945

Estimate what it would cost

Enter a number of kWh to see what it would costat today’s average price.

How Cosy Octopus works

The day is divided into repeating bands: several cheap blocks, a standard rate between them, and a higher peak in the late afternoon. The same shape repeats daily, so there is nothing to check.

The design assumes heating that can be run in bursts and stored — a heat pump warming the house or a cylinder during a cheap block, then coasting. A home with thermal mass or a hot water cylinder gets more out of it than one without.

Because it is banded rather than half-hourly, the saving comes from arranging your heating around a fixed schedule rather than from watching prices.

What you need

  • A smart meter sending half-hourly readings
  • In practice a heat pump or electric heating, since that is the load the bands are built around
  • Available across Great Britain, priced by distribution region

What drives what you pay

  • Whether your heating can actually be shifted into the cheap blocks, which depends on the system and the controls
  • How well the building holds heat between blocks — insulation does more here than on most tariffs
  • How much you use during the late-afternoon peak, which is the most expensive band
  • The standing charge, which applies regardless

Who it tends to suit

  • Homes with a heat pump that can run hard during the cheap blocks
  • Households with thermal storage — a hot water cylinder or a well-insulated home
  • People willing to set heating schedules around a fixed daily shape

Who it tends not to suit

  • Homes heated by gas, which gain little from cheap electricity blocks
  • Anyone who cannot avoid the expensive late-afternoon peak
  • Poorly insulated homes that cannot coast between the cheap blocks

Things to watch

  • A gas-heated home gains very little. The bands are built around a large electric heating load, and without one you are paying for complexity you cannot use.
  • The late-afternoon peak coincides with cooking and coming home, which takes discipline to avoid.
  • A poorly insulated house cannot coast between blocks, so the heating runs at peak anyway and the tariff works against you.

Cosy Octopus compared with the alternatives

Against Agile Octopus
Agile can be cheaper for a heat pump that is genuinely controllable half hour by half hour, but it requires active management. Cosy gives a fixed, predictable shape you can set controls against once. For most heat-pump households Cosy is the lower-effort choice.
Against Octopus Go
Go concentrates everything into one overnight window, which suits a car but not a heat pump that needs to run during the day too. Cosy spreads the cheap periods across the day for exactly that reason.
Against Flexible Octopus
Flexible is one rate all day. If your heating cannot be shifted into Cosy’s blocks, Flexible is simpler and probably cheaper, because you would be paying Cosy’s peak without collecting its troughs.

How to switch to Cosy Octopus

  1. Open to new and existing customers with a smart meter on half-hourly readings; new customers join Flexible Octopus first.
  2. Nothing needs connecting or approving beyond the meter — the cheap bands apply from the day the tariff starts, whatever heating you have.
  3. No exit fees, with the standard 30-day lock-out on smart import tariffs after leaving.

Our verdict on Cosy Octopus

Cosy is built around a heat pump's day: cheap blocks in the early hours, late morning and early afternoon, so the house and the hot water are heated when electricity is cheapest and coast through the expensive evening.

With electric heating you can schedule, it is among the cheapest ways to run a home. Without it, the peak rate does more damage than the cheap bands repair, and a flat tariff will beat it.

In its favour

  • Cheap bands land where heating demand actually is
  • Three separate cheap windows across the day
  • No hardware compatibility requirement
  • No exit fees

Against it

  • Expensive outside the cheap bands
  • Really only suits electric heating
  • Bands are fixed, so they do not follow cheap prices
  • Needs a smart meter on half-hourly readings

Frequently asked questions

Is Cosy Octopus only for heat pumps?

It is designed around them. A home with electric heating or good thermal storage can benefit too, but a gas-heated home usually gains very little, because there is no large electric load to move into the cheap blocks.

When are the cheap blocks?

The current bands, with times and prices for your region, are in the schedule above. Octopus has adjusted the shape over the life of the tariff, so the live schedule is more reliable than any fixed times quoted elsewhere.

What happens during the peak band?

Electricity costs noticeably more than the standard rate, typically in the late afternoon and early evening. Avoiding heavy use then is the main discipline the tariff asks for.

Do I need to change my heating controls?

Usually yes. The saving comes from running the heat pump during the cheap blocks and coasting between them, which normally means setting a schedule rather than leaving it on a thermostat alone.

Source: Octopus EnergyOctopus Energy public API tariff rates. Last retrieved 4 Aug 2026, 18:46.