Business electricity isn’t priced like a household tariff. Your rate depends on your meter type, your DNO region, your credit rating, and where the wholesale market sits on the day you tender — which is exactly why two businesses on the same street can be paying very different unit rates for the same power.
This guide breaks down current indicative rates by business size, what actually makes up your bill, and how to compare suppliers properly before you switch.
What Are the Latest Business Electricity Rates?
As of August 2026, indicative business electricity unit rates sit in the region of 20–23p/kWh, with daily standing charges ranging from roughly 40p to 150p depending on business size and meter type. These are wholesale-led averages, refreshed monthly, and should be treated as a guide rather than a quote — the underlying wholesale price moves every trading day.
| Business Size | Indicative Unit Rate | Indicative Standing Charge | Typical Annual Usage |
|---|---|---|---|
| Micro Business | 22.4p/kWh | 41.0p/day | 5,000–15,000 kWh |
| Small Business | 21.3p/kWh | 44.9p/day | 15,000–30,000 kWh |
| Medium Business | 20.9p/kWh | 100.4p/day | 30,000–65,000 kWh |
| Large Business | 21.2p/kWh | 141.5p/day | 65,000+ kWh |
At these rates, a small business using around 22,500 kWh a year would land at roughly £5,300 annually, while a medium business around 47,500 kWh would sit closer to £10,900. Your own figure depends on your meter type, DNO region, capacity charges, credit rating and consumption profile — these numbers are a planning baseline, not a substitute for a tendered quote.
What Actually Makes Up Your Business Electricity Bill?
Your unit rate isn’t one number — it’s a stack of costs, and understanding each layer helps explain why rates vary so much between businesses.
Wholesale commodity cost — the price of power itself, traded on the UK day-ahead market and forward curve. This typically accounts for 40–55% of your total bill and is closely tied to gas prices and UK carbon allowance prices.
Non-commodity costs — the regulated charges that fund the transmission and distribution network, balancing services, and government policy schemes (things like TNUoS, DUoS, BSUoS, the Renewables Obligation, and the Climate Change Levy). For a small business, these can account for up to 60% of the bill — often more than the energy itself.
Standing charges — a fixed daily fee covering the cost of connecting your premises to the network, regardless of how much you use. These have risen steadily since 2021 as networks recovered costs from supplier failures during the energy crisis.
Credit rating and payment profile — suppliers price for risk. A clean payment history and strong balance sheet secures a noticeably lower rate than a business with a shorter trading record or credit issues.
Consumption profile and contract length — a flat, predictable load (like a data centre) prices better than a peaky one (like a school). Longer contracts of 3–5 years also tend to price lower per kWh than a 12-month deal, since suppliers build in less near-term risk.
How to Compare Business Electricity Suppliers
Before you can get a proper comparison, you need four things from your most recent bill:
- Your annual consumption in kWh
- Your contract end date
- Your 13-digit Meter Point Administration Number (MPAN) — usually printed as an “S” number in the top-left or bottom-right of the bill
- Your current supplier’s name
With those details, a whole-of-market broker can tender your consumption across a panel of suppliers and return a like-for-like comparison — ideally with the wholesale price, non-commodity costs, supplier margin, and broker margin all shown separately, so you can see exactly what’s driving the quote rather than just a bottom-line rate.
Don’t have your bill to hand? Call the Meter Number Helpline on 0870 608 1524 with your postcode and address, or use an online MPAN lookup tool.
Does Your Meter Type Affect Your Rate?
Yes, meaningfully. There are three main meter categories:
- Non-half-hourly (NHH) — most small and medium businesses, billed on estimated or periodic reads
- Half-hourly (HH) — mandatory for sites with peak demand above 100 kVA, giving suppliers much more accurate consumption data
- Advanced meters (AMR) — sit between the two, with automated remote reads
Having half-hourly data available typically makes a 1–2p/kWh difference to your quoted rate, because suppliers can price more precisely instead of building in a margin for uncertainty. A smart meter itself doesn’t change your rate directly, but it does remove estimated billing — and under Ofgem’s Market-wide Half-Hourly Settlement rollout (2025–2027), half-hourly data is becoming standard across every non-HH meter in the UK.
What Happens If You Don’t Switch on Time?
If your fixed contract ends and you don’t act, your supplier automatically rolls you onto deemed or out-of-contract rates. These are typically 2–3 times higher than your fixed rate — in recent years commonly sitting well above 40p/kWh. This is the single most expensive mistake a business can make on its energy contract, and it’s entirely avoidable with a renewal reminder set 6–12 months ahead of the end date.
Frequently Asked Questions
How often do business electricity rates change? Wholesale power trades every settlement period, so the rate you’d be quoted today can shift by tomorrow. Indicative rate tables (like the one above) are typically refreshed monthly, but a binding quote reflects the market on the day you request it.
Can I switch business electricity supplier mid-contract? Generally no — business electricity contracts are legally binding for the full term, and exiting early usually triggers termination charges that outweigh any saving. The switching window opens once you receive your renewal notice, typically 6–12 months before the contract end date.
Do I pay VAT on business electricity? Most businesses pay standard 20% VAT. You may qualify for the reduced 5% rate if you’re a registered charity, not-for-profit, or use under roughly 12,000 kWh a year. The Climate Change Levy also applies on top, at a rate HMRC sets each April.
How long is a typical business electricity contract? Most fixed-price contracts run 1–5 years. Shorter terms let you retender more often if wholesale prices fall; longer terms lock in price certainty and usually secure a lower unit rate.
What’s the fastest way to find out who supplies my electricity? Check your most recent bill — the supplier name and MPAN sit on the first page. If you don’t have it, call the Meter Number Helpline or use an online supplier lookup with your postcode.
The Bottom Line
Business electricity pricing is genuinely more complex than picking the lowest headline rate — your meter type, contract length, credit profile, and the timing of your tender all move the number. The most reliable way to avoid overpaying is to know your renewal date well in advance, gather your MPAN and consumption data ahead of time, and tender across the whole market rather than accepting a single supplier’s renewal offer.
