Export income

British Gas has quietly retired its 15.1p flat SEG rate, replacing it with a 12p tariff for most homes

British Gas's own SEG tariff page now lists Export Premium (12p per kWh, systems up to 15kW) and Export Extra (8p per kWh, systems over 15kW) as its current export tariffs. Export & Earn Plus, the flat 15.1p rate it was previously best known for, no longer appears as a live offer.

26 August 2026 · Source: British Gas

We checked British Gas's own SEG page directly rather than relying on comparison-site summaries, since some of those still list Export & Earn Plus as active. As of this week it isn't there: the tariffs on offer are Export Premium at 12p per kWh for systems up to 15kW, Export Extra at 8p per kWh above that, plus two lower-rate tariffs for social housing and non-British-Gas customers. Virtually every domestic rooftop install we do in Herne Bay falls well under the 15kW threshold, so Export Premium at 12p is the relevant comparison, not the 8p rate aimed at larger commercial systems.

That's a drop from the old 15.1p flat rate to 12p, roughly a 20% cut, the same shape of move as Octopus's Outgoing tariff going from 15p to 12p back in March, which we covered here at the time. Two of the market's cleaner no-battery flat rates have now both moved down within the same year, which says more about where SEG pricing is heading generally than about either supplier specifically.

For a typical CT6 household in Herne Bay, Beltinge or Greenhill exporting 1,000 to 1,500 kWh a year off a south-facing roof, the difference between 15.1p and 12p works out to roughly £31 to £47 a year on identical panels and identical export volume, before you even look at whether a different supplier now pays more. Good Energy's Solar Savings Exclusive was still quoting 25p flat as of our last check, over double British Gas's new rate.

If you're on Export & Earn Plus already, worth checking your next SEG statement rather than assuming the rate you signed up on still applies; suppliers can move SEG pricing on short notice without the protections that cover standard energy tariffs. If you're comparing suppliers before a new MCS install, don't take an installer's suggested tariff as the best available without checking the current Ofgem SEG supplier list yourself.

Read the original: British Gas. Commentary is Herne Bay Solar's own editorial view; the original reporting is credited to its publisher.

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