How often do rates change?

Standard rates: quarterly or less. Agile/variable: half-hourly. We update this page monthly. For the absolute latest, check the Ofgem SEG supplier list.

SEG Tariffs Ranked: Monthly Update

By Home Solar Guide Team|Updated 19 March 2026|money

Independently written | Evidence-based | Sources cited

SEG comparison — Every SEG rate ranked. Octopus Flux 15p best with battery. Updated monthly.

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Which SEG tariff pays the most?

Every UK SEG tariff compared (March 2026 update): PREMIUM: Octopus Flux — 15p/kWh (daytime export windows). Requires battery + smart meter. Annual income (4kW): £350-£520. STANDARD FIXED: Octopus Outgoing 4.1p. EDF Export 3.5p. British Gas 3.2p. E.ON Next 3.0p. Scottish Power 3.0p. Shell 2.8p. SSE 2.5p. Annual income at best standard (4.1p): £120-£180. VARIABLE: Octopus Agile Export — variable half-hourly, averages 5-8p. Peaks to 30p+. Annual: £180-£400. HOW TO SWITCH: Contact your preferred SEG supplier directly. Free to switch, no exit fees. Installer and SEG provider don't need to match. This page is updated monthly — bookmark for latest rates. Source: Ofgem SEG supplier list (ofgem.gov.uk), individual supplier tariff pages.