Why compare business electricity suppliers?

When it comes to switching business electricity suppliers, comparing prices across different providers is the first step. If you also supply gas to your premises, our our business gas guide works in the same way and many businesses review both at once. With Clearsight Energy, it takes a few minutes to see what’s available from the market and where your current deal sits.

There are a few good reasons to compare business electricity prices rather than just rolling over your existing contract. Here’s what to look at when comparing business electricity providers.

What to compareWhy it matters
Unit rates and pricingYour electricity rate is shaped by your annual consumption, location on the distribution network, and contract length. A business in the North East pays different network costs to one in the South West. Higher usage generally unlocks lower unit rates. Without actually comparing business electricity prices, you won’t know if your current supplier is still competitive.
Contract flexibilityDifferent providers offer different terms. A one-year deal suits businesses planning to expand or relocate. A three-year fix gives stability for budgeting. Some suppliers offer blended terms for multi-site businesses. Finding the best business electricity supply means looking beyond just the unit rate.
Green tariffsMore electricity providers now include renewable tariffs as standard. If your business tenders for public sector work or reports on carbon, a green electricity contract ticks a box that’s increasingly hard to ignore.
Customer serviceNot all providers are equal when it comes to support. If you’ve spent forty minutes on hold trying to query a bill, you know this counts for more than most give it credit for. Switching gives you the chance to choose a provider that actually picks up the phone.
Budget certaintyA fixed-rate contract means predictable costs with no surprises when wholesale prices shift. You know what you’re paying per kWh for the length of the deal, and that’s one less variable when planning the year ahead.
Bundled extrasSome providers bundle in smart meter installations, energy efficiency advice, or automated renewal reminders so you don’t accidentally end up on expensive out-of-contract rates.

All of this applies whether you’re a multi-site operation or a single office. Most small businesses we work with are surprised at how much variation there is between electricity providers once they actually compare. A shop, a small warehouse, an office suite — they’re all eligible for competitive rates, and the process takes the same couple of minutes regardless of size.

Comparing business electricity providers with us is straightforward. Click the compare now button, enter your details, and you’ll receive quotes from a range of electricity suppliers.

How business electricity prices are worked out

Two businesses on the same industrial estate can pay very different rates for the same electricity. That isn’t a billing error. Commercial electricity isn’t sold from a published price list, and there’s no Ofgem price cap on business supply. Every quote gets built around your consumption, your meter type, your credit profile, and where your site sits on the network.

Your unit rate is only part of the story. The price you actually pay is made up of five moving parts: the unit rate in pence per kWh, a daily standing charge for being connected, network and policy costs bundled into the rate such as DUoS and TNUoS, the Climate Change Levy, and VAT at 20% (or 5% if you qualify as a low user or a charity). Most of those are fixed costs you can’t shop around on. The unit rate and the contract terms are where the saving actually lives.

Bigger sites have more to weigh up. Your agreed capacity in kVA, your load factor and your maximum demand all feed into the number a supplier puts in front of you. If you’re on a half-hourly meter, the supplier can see exactly when you draw power across the day, and that shapes the rate too.

What you might pay for business electricity in 2026

Across the quotes we ran on our supplier panel in June 2026, the most competitive business electricity rates averaged around 22p per kWh, starting from about 21p. Larger sites tend to win keener unit rates, though they carry bigger standing charges. The table shows the average of the five most competitive deals for a typical business in each size band that month, before VAT and the Climate Change Levy.

Business sizeAvg unit rateStanding chargeEst. annual cost
Micro (~25,000 kWh)22.8p/kWh61p/day~£5,900
Small to medium (~50,000 kWh)21.7p/kWh113p/day~£11,000
Larger (~250,000 kWh)21.8p/kWh300p/day~£55,500

These are averages of the most competitive quotes, not a single outlier. Standing charges climb with consumption, which is why we compare the total annual cost rather than the headline unit rate. The figures apply to standard meters. Half-hourly metered sites, usually the largest users, are quoted separately, because more of their cost sits in network and capacity charges than in the unit rate.

These figures are indicative. Business electricity isn’t sold from a fixed price list, so your own number depends on where you are in the UK, what your business does, your credit profile, how much you use, and where wholesale prices sit on the day you fix. The figures here come from real quotes we ran in June 2026 and aren’t a live offer.

How business electricity actually works

Five things shape your business electricity bill, and each of them is worth understanding before you sign a new contract. The unit rate per kWh you pay. The fixed daily standing charge. Non-commodity charges (TNUoS, DUoS, BSUoS and the levies) that make up roughly a quarter of the total. The Climate Change Levy and VAT on top. Our line-by-line breakdown of how business electricity bills are calculated walks through each component with a worked example. If your standing charge has jumped sharply over the last few years, our explainer on business electricity standing charges covers why that has happened and what is normal for your size of business. For VAT specifically, including when the reduced 5% rate applies, see our guide to VAT on business electricity.

Choosing a supplier

There are around 30 active business electricity suppliers in the UK. The major names compete on different things — price stability, customer service, multi-site portfolio capability, green credentials, smart meter data quality. Our overview of UK business electricity suppliers covers who the major players are and what to look for. For EDF specifically, our deeper guide on EDF business electricity rates walks through their contract types and how their pricing compares.

Meter and capacity basics

Every business electricity supply has a unique 21-digit MPAN that identifies it. You will need it for every quote and switch. Our MPAN checker validates the format and decodes each section so you can be sure you have the right number before you submit it. For larger commercial sites, the supply capacity (Available Supply Capacity or ASC) is set in KVA. Our KVA calculator handles conversions between kW, KVA and amps for both single-phase and three-phase supplies.

Compare and switch in minutes

Once you know what you are looking at, switching is straightforward. Most contracts complete in 4–8 weeks. We handle the comparison, the Letter of Authority, the MPAN lookup and the paperwork. You stay in control. Same supply, same meter, new supplier on better terms.

Business electricity contract types

Most businesses end up on one of four contract types. Which one fits comes down to how much price movement you can live with and how much time you’ve got to manage it.

Contract typeHow pricing worksBest suited to
FixedUnit rate locked for the full term, usually 12 to 36 monthsBusinesses that want a bill they can budget for
Pass-through or variableWholesale cost passed through, plus a margin and network chargesBusinesses that can absorb some movement
FlexibleYou buy electricity in tranches across the termLarger or multi-site users with active management
Deemed or out-of-contractSupplier default rate once a contract lapsesNo one. It’s the rate to get off.

If your contract lapses, you roll onto an out-of-contract rate. If there’s never been a contract on the meter at all, you’re on a deemed rate. Both sit well above a negotiated price. There’s a timing trap here that catches plenty of businesses. You usually have to give notice inside a set window before your end date, and miss it and you get rolled over onto worse terms. Knowing your renewal date is half the job.

Why business electricity prices move

Electricity pricing in the UK still takes its lead from gas. Gas-fired power stations often set the wholesale price at the margin, so when gas markets jump, electricity follows. Wind output, demand on cold still evenings, and the interconnectors moving power to and from Europe all push the curve around week to week. Policy and network costs layer on top, and those tend to drift up over time rather than down.

None of that is something you control. What you can control is when you fix and for how long. Timing a fix on a softer part of the curve, and matching the contract length to where the market is, is where a broker earns their keep. If you’re setting up a brand-new supply or upgrading one, that’s a different process again, covered in our guide to new business electricity connections.

How we help you compare business electricity suppliers

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    We will compare your prices for your business electricity supply

    We compare business electricity suppliers for you

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    Identify the right business electricity deal for you

    Choose from a selection of business electricity suppliers to get the right deal

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    Sit back and relax and we will sort the rest

    Once you have chosen your business electricity quote, sit back and relax and we will do all the leg work for you!

Business Electricity Suppliers

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Understanding business electricity contracts

Fixed-Term Contract

A fixed-term contract for business electricity is a commonly chosen option, offering a stable unit price throughout the agreed-upon period. This provides businesses with predictability and stability in their electricity costs, shielding them from market fluctuations. Typically lasting between one to five years, this contract type provides a reliable framework for budgeting and planning electricity expenses.

Variable Contract

A variable price business electricity contract is an agreement where the cost of electricity for businesses can fluctuate based on market conditions, offering flexibility but also exposing businesses to potential price fluctuations. Unlike fixed-term contracts, variable price contracts lack the stability of a consistent unit price and may be influenced by market dynamics.

Out of contract

An out-of-contract business electricity arrangement happens when a business is receiving electricity without a formal contract in place. During this period, charges default to variable or deemed rates, which tend to be noticeably higher than what you’d pay on a negotiated deal. It offers flexibility in the sense that you’re not locked in, but that flexibility comes at a cost. Most businesses are better off comparing providers and locking in a fixed rate.

Renewal Window

The renewal window is the period before your current electricity contract expires when you can start comparing new deals. It typically opens a few months before your end date. This is when you’ve got the most leverage to negotiate, and it’s worth using it. If you miss the window, some suppliers will roll you onto an out-of-contract rate, which is almost always more expensive. Our guide on when to renew a business energy contract covers the timing in more detail.

Termination Notice

In business electricity contracts, a termination notice is an official communication issued by either the business or the electricity supplier, signifying the intent to end the contractual agreement. The notice period and termination terms are typically outlined within the contract’s terms and conditions. Businesses are required to adhere to these provisions, providing advance notice to the supplier before the intended termination date. The termination notice period varies among different business electricity suppliers.

FAQS

Does my credit score affect what business electricity quotes I can access?
Why do I need to sign a letter of authority for my business electricity contract?
What is a deemed business electricity contract?
What is an MPAN?
Where can I find my MPAN?
When comparing business electricity contracts, what is a standing charge?
What does kWh stand for?
What factors should I consider when choosing a business electricity supplier?
Will switching business electricity suppliers cause any disruption to my electricity supply?
How are business electricity prices calculated?
What is the average business electricity unit rate in 2026?
What is the difference between a fixed and a pass-through electricity contract?
How long does it take to switch business electricity supplier?
Do I pay VAT and the Climate Change Levy on business electricity?

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