Energy · Updated 9 November 2026

Business energy this winter (2026/27): what to know

Heading into winter 2026/27, Ofgem's household price cap edges up again from January — but business energy isn't covered by that cap at all. Business prices depend on your contract and when you signed it, so winter is a good time to check where you stand. Here's what's happening and what to do.

Business energy

Business energy
this winter

2026/27 — what to know

Compared across suppliers
Key takeaways
  • The Ofgem price cap applies to households, not businesses — business energy prices come from your own contract.
  • The household cap edges up again from January 2027, a reminder that wholesale and network costs remain elevated.
  • Rising network and standing charges feed into business bills regardless of your unit rate.
  • Winter is a sensible time to check your contract end date and plan your renewal rather than roll onto expensive out-of-contract rates.

Every winter the energy price cap makes headlines — and every winter business owners ask whether it applies to them. The short answer is no, and understanding why helps you make better decisions as the cold weather bites.

The price cap doesn't apply to businesses

Ofgem's price cap, which edges up again from January 2027, covers domestic tariffs only. Business energy has never been under the cap — your price comes from the contract you agreed with your supplier. So cap headlines are a signal about the wider market, not a limit on your bill. See does the price cap apply to businesses.

What's actually driving business costs

Two things matter beyond the wholesale price of energy itself:

The winter trap: out-of-contract rates

The costliest mistake in winter is letting a contract lapse. If yours ends and you don't renew, you roll onto out-of-contract rates — typically the most expensive prices there are. Know your end date and renewal window before winter catches you out.

What to do now

Check your contract end date, note your renewal window, and compare the market in good time rather than in a panic. A broker can compare suppliers for you — see how broker transparency rules protect you. Whether to fix or stay flexible depends on your appetite for certainty.

Want to know where your business energy stands this winter? We compare electricity and gas across suppliers — free, no obligation. Call 0845 862 1947 or get in touch.

Winter cap headlines don't set your business bill — your contract does. Check your end date, understand the network and standing charges in your price, and renew in good time to avoid the out-of-contract trap.

FAQ

Energy — Common Questions

No. Ofgem's price cap covers domestic tariffs only and has never applied to business energy. Your business price comes from the contract you agreed with your supplier, not the cap.
Beyond the wholesale cost of energy, network and standing charges — the cost of maintaining the pipes and wires — are built into every bill and remain elevated with major network investment underway. When you signed your contract also matters a lot.
If you don't renew, you roll onto out-of-contract rates, typically the most expensive prices available. Knowing your end date and renewal window helps you avoid this.
It depends on your appetite for certainty. Fixing locks your rate for the term; staying flexible can suit businesses that can watch the market. Checking in good time — not in a panic — matters most.

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Last reviewed 9 November 2026. Figures are based on Ofgem, NESO/National Grid, gov.uk and published industry data, and are correct to the best of our knowledge at the time of writing; prices, rates and regulations change, so always confirm current figures before making a decision. This guide is general information, not financial, legal or regulatory advice. Win Energy Ltd is an independent utility broker (not a supplier); any savings are illustrative and vary by business.
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