Business Energy Contract Renewal Rates: May 2026

If your business gas or electricity contract is up for renewal in May 2026, your incumbent supplier's offered rates are usually 20–40% above whole-of-market. Here's how to compare, what affects your renewal pricing, and how to avoid the rollover trap.

  • Why renewal letter rates rarely match the best market price
  • What's driving business energy pricing in May 2026 (wholesale, broker fees, network charges)
  • How to use your renewal window to get the best deal
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Why your renewal letter rates are inflated

Business energy contracts (unlike domestic) are not protected by the Ofgem price cap. Suppliers price each renewal letter based on:

  • Their own forward-cost view. A snapshot of wholesale + non-commodity costs at the time of the letter.
  • An assumed margin to retain you. Typically 5–15% above wholesale + costs.
  • An "out-of-contract" backstop rate. If you do nothing, you roll onto deemed/OOC rates that are 30–50% above competitive market.

The rate quoted in your renewal letter is rarely the supplier's best price — even from the same supplier. It's a starting position, not an offer.

Typical May 2026 business energy pricing landscape

For SME contracts (annual usage 5,000–100,000 kWh), wholesale-anchored pricing in early May 2026:

  • Best fixed business electricity: ~22–26p/kWh depending on volume, region, payment terms.
  • Best fixed business gas: ~5.5–7.0p/kWh.
  • Standing charges: typically 30–80p/day for electricity, 25–60p/day for gas, depending on meter type and supplier.
  • Out-of-contract rates from incumbents: commonly 32–40p/kWh electricity, 8–10p/kWh gas. These are penalty rates — not a market.

The gap between best market and OOC rates is the single largest avoidable cost in UK SME energy. Don't roll over.

How brokers and direct supply differ

Two ways to get business energy pricing:

  • Direct from suppliers. Call each one for a quote. Time-consuming but no commission.
  • Through a broker / TPI (third-party intermediary). Compare across suppliers. Broker takes commission funded by uplift on unit rate (typically 0.5–2p/kWh electricity, 0.1–0.3p/kWh gas).

Most SMEs use brokers because the time saving outweighs the uplift — but the uplift varies massively. Always ask for the broker's commission rate explicitly; it's now mandatory under Ofgem TPI standards.

The renewal window — when to act

For most SME contracts:

  • 6 months before end: typical earliest you can lock in the next deal.
  • 3 months before end: sweet spot — pricing stable, supplier willing to negotiate.
  • 30 days before end: last chance to switch cleanly. After this, switching becomes harder due to objection rules.
  • End date passed: rolling onto OOC rates. Switch immediately — many suppliers will accept switching during OOC, but pricing is poor while you're on it.

Five rules for a good business renewal

  1. Ignore the renewal letter rate. Treat it as a starting position only.
  2. Get whole-of-market quotes. Either via broker or direct from 4–6 suppliers.
  3. Verify broker commission rates. Required under TPI standards. If a broker won't disclose, walk away.
  4. Match contract to business plans. Don't sign a 36-month fix if your premises lease ends in 18 months.
  5. Submit termination notice in writing. Even if switching, formally notify your incumbent supplier within their notice window. Avoid auto-renewal disputes.

Specific things to watch for in May 2026

  • Q3 cap announcement on 27 May. Affects domestic but signals to wholesale market — business pricing tends to follow within 1–2 weeks.
  • Pass-through vs fixed. If wholesale is volatile, suppliers offer "pass-through" contracts where commodity is variable but other costs are fixed. Sometimes attractive but harder to budget against.
  • Carbon and policy costs. Non-commodity components have grown to 60%+ of total business bill. Ask suppliers to break out commodity vs non-commodity in quotes.

Frequently Asked Questions

How much can my business save by switching at renewal?

Typically 15–35% vs the rates in your renewal letter, and 30–50% vs out-of-contract rates if you've rolled over. The exact saving depends on your usage profile and contract type.

When should I act on my business energy renewal in May 2026?

3 months before contract end is the practical sweet spot. 6 months gives you longest window; 30 days is last chance. Don't roll into out-of-contract rates.

Should I use a broker for business energy?

Most SMEs do, because the time saving outweighs the small uplift. Always ask for the broker's commission rate disclosure (now required under Ofgem TPI standards).

What's the difference between fixed and pass-through business contracts?

Fixed locks every component for the contract term. Pass-through fixes non-commodity costs but lets the wholesale element vary. Pass-through can be cheaper in falling-wholesale environments but harder to budget against.

My business contract just ended — can I still switch?

Yes, but you may be on out-of-contract rates while waiting. Most suppliers accept switching during OOC, but it's costly while you're on it. Act fast.

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Information is for general guidance based on Ofgem published cap data and supplier pricing as of early May 2026. Specific rates depend on your postcode, meter type and tariff terms. Always check the latest tariff details before switching. EnergyPlus is an independent comparison service.

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Updated on 2 May 2026