EnergyPlus · May 2026
Business energy comparison: compare UK deals (June 2026)
Business energy isn't covered by the Ofgem default tariff cap that protects homes. Prices are negotiated, contracts can run 1–5 years, and the biggest savings come from comparing whole-of-market quotes before your renewal window. This page covers what to look at when comparing business energy in May 2026, who benefits most, and the pitfalls to avoid.
Editorial information, not financial advice. Prices and policy can change — always confirm against the supplier and Ofgem.
Business energy comparison — June 2026 at a glance
UK business electricity is split between profile classes (01–04 for non-half-hourly small business, 05–08 for half-hourly larger users). Wholesale energy prices stabilised through Q1 2026 below 2022–2023 peaks, and contracts signed in May 2026 typically lock in unit rates 3–8% below the equivalent deemed/out-of-contract rates. The savings on a small business are typically £400–£3,000 a year.
Quick checklist (May 2026):
- Wholesale prices in 2026 sit roughly 15–25% above pre-2021 levels but well below 2022 peaks.
- Out-of-contract / deemed rates are typically 40–60% higher than negotiated rates.
- Renewal windows are tight — typically 1–6 months before contract end.
- Half-hourly metered (HH) sites need explicit Class 05–08 metering and broker support.
- Last updated
- May 2026
- Reviewed by
- Energy Specialist
- Audience
- UK households & small businesses
Get a tailored quote
Share a few details and we’ll match you to suppliers and tariffs that suit your home, meter and usage. The aim is to make quotes comparable — same term, same assumptions — so you can decide with confidence.
What we’ll do with your details: request and present supplier quotes, and contact you about your comparison. You can ask us to stop at any time.
What changes your quote most
Annual kWh
Drives the unit-rate portion of your bill.
Meter type
Single-rate, Economy 7/10, smart, half-hourly all price differently.
Postcode & region
Standing charges and tariff availability vary by network region.
Term & start date
Fixes of 12/18/24/36 months trade certainty for flexibility.
Compare options now
No obligation. If you don’t know your usage, an adviser can help estimate it.
Tip: Your MPAN (and MPRN for gas) helps suppliers price more accurately. Both are on a recent bill.
Business energy comparison for UK SMEs (June 2026)
A clear, current overview to help you choose with confidence.
When to start the comparison
Most contracts have a 30-day termination notice and a 6-month renewal window. Comparing 4–6 months ahead lets you lock the best rate without rushing.
Profile class matters
Non-half-hourly profile classes (01–04) and half-hourly metered sites (05–08) attract different rate structures and supplier sets. Wholesale market access at HH unlocks more competitive pricing.
Deemed and out-of-contract risk
Leaving a contract to expire onto deemed/out-of-contract rates is the most expensive failure mode. Calendar your renewal window the moment you sign.
Smart meter for SMEs
Smart meters for small businesses (SMETS2 commercial variants) unlock granular cost data and access to dynamic tariffs. Installation is free for most SME customers.
Compare like-for-like
May 2026 indicative business electricity rates by profile. Real quotes depend on consumption, peak demand, sector and credit profile.
| What to compare | Typical range (May 2026) | Notes |
|---|---|---|
| Microbusiness (P/C 01–02) negotiated | ~22–28p/kWh + 70–100p/day | 1–3 year contracts typical. |
| Small business (P/C 03–04) negotiated | ~20–26p/kWh + 100–150p/day | Best fits 50,000–100,000 kWh/year. |
| Half-hourly metered (P/C 05–08) | Bespoke fixed or flexible | Triad/Capacity Market exposure managed via broker. |
| Out-of-contract / deemed | ~32–42p/kWh + 120–200p/day | Default if contract lapses. |
| Green / 100% renewable | Premium of ~0.5–2p/kWh typical | Useful for sustainability reporting. |
How to compare UK business energy in June 2026
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1. Gather your data
Annual kWh (electricity and gas), profile class, current rates, contract end date, MPAN/MPRN.
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2. Check your renewal window
Most contracts require 30 days notice and have a 1–6 month renewal window.
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3. Decide your priority
Lowest unit rate, certainty (multi-year fix), flexibility, or green credentials.
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4. Run a whole-of-market quote
Use the form on this page to surface tariffs for your meter, usage and location.
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5. Compare the full price stack
Standing charge + unit rate + CCL + balancing fees + estimated annual cost.
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6. Sign before contract end
Submit signed contract before your termination window closes to avoid deemed rates.
Common pitfalls to avoid
The most frequent issues we see when households and businesses act on what looks like a good deal.
- Letting a contract roll onto deemed rates — 40–60% premium is common.
- Comparing only unit rate and ignoring standing charge, climate change levy (CCL) and balancing fees.
- Signing multi-year contracts in a falling wholesale market without break clauses.
- Using a single-supplier quote without comparing broker/whole-of-market alternatives.
Frequently asked questions
How is business energy different from home energy?
Business energy isn't covered by the Ofgem default tariff cap. Prices are negotiated, contracts are typically 1–5 years, and rates depend on consumption, sector, credit profile and metering type.
When should I compare business energy?
Start 4–6 months before your current contract ends. That gives time to negotiate, secure a rate, and avoid rolling onto deemed/out-of-contract pricing.
What's a half-hourly meter?
Half-hourly (HH) meters report consumption every 30 minutes and are mandatory for businesses with peak demand over 100 kW or with profile class 05–08. They unlock wholesale-linked pricing.
Can I switch business energy supplier any time?
Generally no — you switch at contract end during your renewal window. Switching mid-contract usually requires paying out the remaining term.
Is fixed always cheaper than variable for business energy?
Not necessarily. In a falling wholesale market a flexible or pass-through contract can outperform fixed. The right choice depends on your risk appetite and consumption pattern.
Do I need a broker?
Not strictly. Suppliers will quote direct. But brokers can access whole-of-market panels and bespoke commercial rates that aren't available retail. Check the broker's fee structure (commission vs flat fee).
What's a microbusiness?
Under Ofgem rules: <10 employees AND <€2m turnover AND <100,000 kWh electricity or <293,000 kWh gas. Microbusinesses have additional consumer protections.
Are green tariffs more expensive?
Slightly — typically a 0.5–2p/kWh premium. Worth it for sustainability reporting (e.g. Scope 2 emissions disclosure).
Trust, methodology and sources
Page governance
- Written by
- EnergyPlus Editorial Team
- Reviewed by
- Energy Specialist
- Last updated
- May 2026
How we keep this page current
We refresh this page each month against the latest Ofgem cap, supplier tariff changes and current scheme guidance. Worked numbers are illustrative; quotes you receive via the comparison form are personalised to your meter and postcode.
Editorial independence: our priority is clarity and like-for-like comparison. Where commercial relationships exist, options are still presented on suitability and the information available at the time.
Reputable UK sources we reference
- Ofgem — for business customers
- GOV.UK — climate change levy
- Energy UK — Business Energy Code of Practice
If you spot anything that looks out of date (a rule change, a new scheme), please contact EnergyPlus so we can review and update this page.
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