OctoTariffs

Octopus Go in South Wales

Cheap overnight electricity for EV charging

Price now

30.97p

Expensive

Next

—

Not published

Today's cheapest

8.63p

00:30 · Very cheap

Today's dearest

30.97p

00:00 · Expensive

Today's published time bands

Rates in pence per kWh, VAT included
FromTop/kWh
10 Sept 2026, 05:3000:3030.966
00:3005:308.625
05:3000:3030.966

Today at a glance

Average
26.31 p/kWh
Cheapest
8.63 p/kWh
Dearest
30.97 p/kWh

The average is duration-weighted across the published time bands, so a two-hour band does not count the same as a six-hour one.

The last 48 months

Octopus Go monthly rates in South WalesOctopus Go monthly rates in South Wales from Oct 2022 to Sept 2026. Ranges from 6.50p to 43.36p per kWh. Most recent period Sept 2026: 26.31p per kWh, counted from 12 of 30 days. 2 periods are drawn from part of the calendar rather than all of it: Oct 2022 (18 of 31 days), Sept 2026 (12 of 30 days). A month is partly counted where a version went on or came off sale inside it, and the current month is always still in progress.6.50p15.71p24.93p34.14p43.36pOct 2022Oct 23Sept 24Sept 25Sept 202626.31p latest

Explore the chart. Hover, focus or select any point to see its exact values.

Points are interactive: hover, focus or select one for exact values. Shaded band is the cheapest-to-dearest spread within each month; the line is the duration-weighted mean. 2 periods are drawn from part of the calendar rather than all of it: Oct 2022 (18 of 31 days), Sept 2026 (12 of 30 days). A month is partly counted where a version went on or came off sale inside it, and the current month is always still in progress. They are drawn hollow.

Each month shows the version of Octopus Go you could actually have signed up to then, so the line follows the tariff through its successive versions rather than any one product code. Older versions carry on publishing rates for months after they stop selling; those are not averaged in, because nobody could buy them. Drawn from the stored daily rollups across every payment method the tariff publishes; where a tariff publishes more than one, the rates above show the direct-debit one and this line sits between them.

Year archive

Choose a year above to see its prices.

Against the Ofgem price cap

Over 12 complete months, this tariff came in under the Ofgem cap in 7 of them.

Monthly cost on this tariff against the Ofgem price cap, most recent month last
MonthThis tariffCapDifference
September 2025£68.85£68.89−£0.04
October 2025£72.45£73.00−£0.55
November 2025£70.15£70.65−£0.50
December 2025£72.49£73.00−£0.52
January 2026£75.30£76.19−£0.89
February 2026£68.01£68.82−£0.80
March 2026£75.33£76.19−£0.86
April 2026£69.10£68.52+£0.57
May 2026£77.27£70.81+£6.46
June 2026£74.78£68.52+£6.25
July 2026£77.27£73.84+£3.43
August 2026£77.27£73.84+£3.43

Both columns cost the same 2,500 kWh a year on the typical household consumption pattern, on a direct-debit basis — the basis the cap itself is set on. A negative difference means this tariff was cheaper. The cap is a cap on what you can be charged, not a price anyone is billed, so this compares this tariff against the maximum a capped tariff could have charged the same household.

Before you switch

Is Octopus Go a fit?

A quick suitability check before you compare the live price with your own home and usage.

Reviewed 24 August 2026

Essentials

You need

  • A compatible electricity meter and a currently available product version for your region.
  • Any required ev eligibility or compatibility confirmed before switching.

Best fit

Works best if

  • Your household pattern can use the favourable bands and avoid the expensive ones.

Check carefully

Watch out for

  • Standing charges, eligibility, product versions and future rates can change the outcome.

Pairing

Compatible export choices

  • Check the current Octopus smart-tariff terms before pairing any export product.

Make the final check

How to verify or switch

  1. Check the exact tariff name, product version, regional quote, eligibility and current terms with Octopus Energy.
  2. Use OctoTariffs history and calculators as evidence, not as a supplier quote or guarantee of future cost.
EvidenceEligibility and tariff sourcesShow sources

Source details

Which product version this isRead more

Current product version

GO-VAR-22-10-14

Regional tariff reference

E-1R-GO-VAR-22-10-14-K
Used for the rates shown on this page.

About Octopus Go

Cheap overnight electricity for EV charging. Every night from 00:30 to 05:30 you get access to the off-peak rate, and outside that five-hour window you pay the standard peak rate. Charge your electric vehicle overnight and wake up to a full battery: a 7kW charger can add 100+ miles of range during the off-peak window. Unlike Agile, Go rates are fixed and predictable, so you always know exactly what you'll pay, making budgeting easier. If you can't shift much usage to the overnight window, or if you prefer more flexibility, Octopus Agile or Intelligent Go may suit you better.