OctoTariffs

Octopus SEG in South Wales

The Smart Export Guarantee rate

Paid now

4.10p

Low

This tariff's rate does not change through the day, so there is no next rate, no cheapest and no dearest to show separately.

Current unit rate

Rates in pence per kWh, VAT included
FromTop/kWh
1 Feb 2022, 00:00now4.100

The last 48 months

Octopus SEG monthly rates in South WalesOctopus SEG monthly rates in South Wales from Oct 2022 to Sept 2026. Ranges from 3.10p to 5.10p per kWh. Most recent period Sept 2026: 4.10p per kWh, counted from 10 of 30 days. One period is drawn from part of the calendar rather than all of it: Sept 2026 (10 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.3.10p3.60p4.10p4.60p5.10pOct 2022Oct 23Sept 24Sept 25Sept 20264.10p 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 lowest-to-highest paid spread within each month; the line is the duration-weighted mean. One period is drawn from part of the calendar rather than all of it: Sept 2026 (10 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 SEG 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.

There is no price cap comparison on this page. The cap limits what a supplier can charge you, not what it pays you for export, so comparing an export rate against it would compare against a number that does not apply.

Before you switch

Is Octopus SEG 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

  • Eligible generation and an export-capable smart-meter setup confirmed by Octopus.
  • Any required solar eligibility or compatibility confirmed before switching.

Best fit

Works best if

  • You value a simpler rate structure over active half-hourly scheduling.

Check carefully

Watch out for

  • Export rates are payments, not discounts to subtract from an assumed import bill.

Pairing

Compatible export choices

  • This is an export product; verify which import tariff Octopus permits it to be paired with.

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

OUTGOING-SEG-FIX-12M-20-07-07

Regional tariff reference

E-1R-OUTGOING-SEG-FIX-12M-20-07-07-K
Used for the rates shown on this page.

About Octopus SEG

Octopus SEG is a legacy Smart Export Guarantee arrangement: an export product from the scheme that succeeded the Feed-in Tariff, paying a flat rate for the electricity you send to the grid. Its unit rate was last set on 1 February 2022 and has not changed since, but the product remains open for existing customers and that rate remains in force today rather than having lapsed or expired. The figure shown here is that same unchanged rate, not a stale or missing one.