The E11 nuclear charge, explained — what UK businesses need to know
The E11 charge is a new non-commodity component on UK electricity bills from April 2025, funding new UK nuclear generation. It is small per kWh but adds up — and like other non-commodity components, you can choose to fix it into your unit rate or pass it through.
What it is
E11 is a regulated charge added to UK electricity unit rates from April 2025. It exists to fund the development and operation of new UK nuclear generation capacity.
Why it exists
New nuclear capacity is expensive to build but provides stable, low-carbon baseload power for decades once operational. Funding via a per-kWh charge on consumption spreads the cost across electricity consumers.
Where it lives on your bill
On a fixed contract, E11 is bundled into your unit rate. On a multipurchase or flex contract, you can choose to fix E11 into your unit rate for the term, or pass it through as actuals.
Bottom line
E11 is small per kWh but materially impacts businesses with high consumption. Building this into your forward planning is the difference between paying it sensibly and being surprised by it.
The E11 nuclear charge, explained — what UK businesses need to know — quick questions
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