| Full exemption (50%+ eligible use) | Half exemption (25–49% eligible use) | |
|---|---|---|
| Year 1 (Apr 2027 – Mar 2028) | ||
| Steady state (2028 onwards) |
Sites below 25% eligible use receive no exemption. Year 1 is lower because the Capacity Market exemption begins in October 2027, six months after the Renewables Obligation and Feed-in Tariff exemptions. Which column applies is decided site by site — that is where most of the money is won or lost, and it's the first thing we look at.
The one-off payment lost if you miss the first window
Roughly one year of your steady-state saving, at full exemption, pro-rated on the same basis as the table above. Paid as a bill credit covering the period back to April 2026 — but only to businesses identified as eligible in the first window (1 Oct – 30 Nov 2026). Miss it and the payment is forfeited in full.
Your position on the four tests
Two things you can do right now
Confirm your codes. Eligibility needs an eligible SIC and an eligible product. Search all 84 SIC codes and all 1,641 HS6 product codes from the Government's final Annex A of 8 July 2026. Free, no sign-up.
Open the code lookup →
Find out which pro-rating band you land in. The figures above assume a band. Below 25 per cent of site electricity on eligible production you get nothing, at 50 per cent you get everything, and the same band sizes the backdated payment. The Readiness Audit tells you where each site sits and what evidence you need, for a fixed £500 credited in full against a full engagement.
See the Readiness Audit →
Your full assessment
The figures above are indicative. Your full assessment adds your verified filed consumption where available, the one-off payment estimate, your pro-rating exposure, and the evidence you'll need to gather — which typically takes 10–12 weeks against an 8-week window.
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Assessment on its way
We'll reply within one working day. We use these details only to prepare and send your assessment.
Methodology & assumptions
Exemption valued at the government's planning assumption of £35–40 per MWh of eligible grid-supplied electricity. Published 2026-27 component parameters imply a higher gross figure; we use the government's assumption, so estimates may prove conservative.
Year 1 reflects Renewables Obligation and Feed-in Tariff relief from April 2027 and Capacity Market relief from October 2027.
Where annual spend is entered, volume is estimated at £200 per MWh, per DESNZ Quarterly Energy Prices manufacturing averages; mid-band consumers typically pay more, making the conversion conservative.
The one-off payment uses a government-set average rate not yet published (expected autumn 2026); the planning assumption is used as a proxy.
Figures are indicative estimates based on scheme design as at the July 2026 government response, not a formal eligibility determination or financial advice. Secondary legislation expected autumn 2026 may change details.