If you run a UK business, your electricity bill is probably the second-biggest fixed overhead after staff. Business electricity rates in 2026 are still elevated compared to pre-2022 levels, but wholesale prices have settled enough that switching supplier — or even just renegotiating — routinely cuts 15-35% off the unit rate. This guide breaks down exactly what UK businesses are paying right now, the tariffs available, the suppliers who serve commercial customers, and the practical steps to lock in the lowest rate for your meter type.
If you would rather skip the reading and see your tailored rate, get a free 60-second business energy quote — we compare every UK supplier in one go.
What is business electricity (and how does it differ from domestic)?
Business electricity is electricity supplied to a non-domestic premises — an office, shop, factory, warehouse, restaurant, gym, salon or any other commercial space. It is sold under a separate set of contracts to domestic supply, with different tariffs, different VAT treatment and different consumer protections.
The four headline differences:
- Contract length: Business contracts are fixed-term (1, 2, 3, 4 or 5 years). You cannot exit mid-contract without paying out the remaining unit rate, unlike a domestic tariff.
- VAT: Business electricity is charged at 20% VAT by default. You can drop to 5% if you use under 33 kWh/day or qualify under the de minimis rules. See our VAT on business energy guide.
- Climate Change Levy (CCL): A separate environmental tax of 0.775p/kWh is added to most business electricity bills (some users qualify for relief).
- Switching window: You must give notice within a defined renewal window. Miss it and you are rolled onto an out-of-contract or deemed-rate tariff that can be 30-80% more expensive.
UK business electricity prices in 2026 — what you should be paying
Wholesale electricity peaked in late 2022 and has slowly come back down. As of Q1 2026, here is roughly what UK businesses are paying for business electricity rates on a new 1- or 2-year fixed contract (excluding VAT, CCL and standing charge):
Source: average of new-contract quotes from 30+ UK business energy suppliers, Q1 2026. Prices exclude VAT, CCL and standing charge unless stated.
If you are paying meaningfully more than the table above, you are almost certainly on an out-of-contract, deemed or rolled-over tariff. Read our cheapest business energy guide for the playbook on getting back to market rate.
The 5 main types of business electricity tariff
Suppliers package the same wholesale electricity in five distinct ways. Picking the wrong one can cost you thousands a year, even if you are with the right supplier.
1. Fixed-rate contract
You agree a unit rate (p/kWh) and a standing charge (p/day) for a fixed term — typically 12, 24, 36, 48 or 60 months. Your prices do not change for the life of the contract regardless of what wholesale does. This is what 80%+ of UK SMEs are on, and is usually the right choice for businesses using under 100,000 kWh/year.
2. Flexible / variable contract
Unit rates track wholesale movements monthly or quarterly. Suits sophisticated buyers who can monitor and trade the wholesale market. Almost never the right choice for an SME.
3. Pass-through contract
You pay the wholesale unit rate plus all non-commodity costs (network, levies, supplier margin) as separate, transparent line items. Used by larger businesses who want full visibility on what they are paying for.
4. Deemed-rate contract
The default tariff a supplier puts you on if you move into a premises and have not signed a contract. Deemed rates are almost always the most expensive on the market — often 50-80% higher than a fixed contract. See our deemed contracts guide.
5. Out-of-contract / rollover
The tariff you are moved to if you let your fixed contract expire without signing a new one. Like deemed rates, these are punitive and should be avoided. New Ofgem rules from 2024 give you 30 days to switch off rollover tariffs without exit fees.
For a deeper breakdown including pass-through, half-hourly and green tariffs, read our complete business energy tariffs guide.
Who supplies business electricity in the UK?
Roughly 35 licensed suppliers serve the UK business electricity market. They split into three tiers:
The Big Six (and Big Five after consolidation)
British Gas Business, EDF Energy, E.ON Next, ScottishPower, OVO/SSE. Big network, big balance sheet, often not the cheapest. They serve everything from one-meter shops to multi-site corporates. Read our Big Six suppliers comparison for tariff and service detail.
Established mid-market
Opus Energy, Total Energies (formerly Total Gas & Power), Crown Gas & Power, Drax, SEFE Energy (formerly Gazprom Energy), Pozitive Energy, Yu Energy. These suppliers focus heavily on SMEs and mid-corporates and frequently undercut the Big Six on unit rate.
Renewable / specialist
Octopus Energy for Business, Good Energy, Ecotricity, So Energy, Bryt Energy, Smartest Energy. Pitched at businesses prioritising renewable electricity (REGO-backed). Premiums over standard tariffs have largely disappeared in 2026 — see our renewable business energy guide.
For a full supplier-by-supplier breakdown of who is cheapest for what business size, read our complete UK business energy suppliers guide.
How to compare business electricity prices in 2026
Comparing business electricity prices is genuinely harder than comparing domestic energy because every quote is bespoke to your meter, postcode, usage profile and credit position. Three things drive the price you are quoted:
- Your annual consumption (kWh). Suppliers band quotes by usage tier — a 4,000 kWh shop and a 4,000,000 kWh factory get completely different rate cards.
- Your meter type. Standard profile-class 1-4 meters get a fixed-tariff quote. Profile-class 5-8 (HH or NHH advanced) get a more granular, often cheaper, rate.
- Your supply postcode. Distribution Use of System (DUoS) charges vary by region — the same usage in West London can be 2-3p/kWh cheaper than in the South West.
The fastest way is to either work with a broker who has live API access to all suppliers, or use a quote tool that pulls real prices in 60 seconds. Both routes need a recent bill (for your MPAN, current usage and supplier name) and ideally a Letter of Authority — see our LOA guide for the full detail.
For a deeper how-to on running a proper market comparison, see our pillar guide on business energy comparison UK 2026.
Reading your bill: unit rate, standing charge and the non-commodity stack
A typical UK business electricity bill in 2026 is broken down roughly like this:
- Wholesale energy cost (~38%): The actual cost of the electrons your supplier bought on the wholesale market.
- Network charges (~22%): Transmission (TNUoS) + distribution (DUoS) + balancing (BSUoS).
- Environmental & social levies (~17%): Renewables Obligation, Contracts for Difference, Capacity Market, Climate Change Levy.
- Supplier margin & operating cost (~10%): How the supplier makes money.
- VAT (~13%): 20% by default, 5% if you qualify.
That breakdown matters because it explains why “switching supplier” can only ever cut roughly half your bill — the network and policy charges are fixed by Ofgem and apply regardless of who you buy from. To attack the other half, look at on-site generation, demand-side response and energy efficiency — covered in our business energy audit guide.
Smart meters, half-hourly meters and your data
Most UK businesses have one of three meter types:
- Profile class 1-4 (standard non-half-hourly): Manual or smart meter reads, monthly billing. Used by under-100 kW peak-demand sites.
- Profile class 5-8 (advanced / smart non-half-hourly): Half-hourly data via a smart meter, but billed on a profile-class basis.
- Half-hourly (HH) settlement (profile class 00): Mandatory for sites with over 100 kW peak demand. Your supplier sees your usage in 30-minute intervals and prices the energy accordingly.
If you are over 100 kW peak demand you are HH-settled by law. Smaller businesses can opt-in if a half-hourly meter is installed — doing so often reduces your unit rate. Read our half-hourly meters guide for the full detail.
How to switch your business electricity supplier
Switching is straightforward but the timings matter:
- Find your renewal window. Most contracts allow you to renew or switch in the 6 months before your end date. Anything earlier and your current supplier will not release you; anything later and you risk rolling onto an out-of-contract rate.
- Get your MPAN, current usage and supplier name. All three are on any recent bill. Your MPAN is a 21-digit number on the front page.
- Sign a Letter of Authority (LOA). This lets a broker or new supplier obtain your historical usage data direct from your current supplier. Without it, you only get rough quotes.
- Run a comparison. Either via a broker who has live access to every supplier, or a comparison tool that quotes your exact MPAN.
- Sign the new contract. The new supplier handles the change-of-supply process — it takes 21 days from contract signature.
For a full step-by-step including objection handling, see our how to switch business energy supplier guide.
Five practical ways to cut your business electricity bill
1. Renew on time, never roll onto out-of-contract
The single biggest preventable cost is being moved onto an out-of-contract or deemed tariff. Diary your renewal date 6 months before contract end and start comparing then.
2. Use a broker for any usage above 50,000 kWh/year
Brokers earn their fee on volume — they routinely shave 1-3p/kWh off direct quotes for medium and large users. For micro businesses (under 5,000 kWh) the saving rarely covers the broker fee. Read our do you need a business energy broker guide.
3. Switch to a half-hourly tariff if eligible
If your peak demand is approaching 100 kW, voluntarily moving to HH settlement frequently saves 2-4p/kWh because pricing reflects your actual usage profile rather than an assumed one.
4. Apply for the 5% reduced VAT rate if you qualify
If you use under 33 kWh/day, 60% of your usage is non-business, or you are a charity, you qualify for 5% VAT instead of 20%. You need to submit a VAT declaration form to your supplier — see our VAT on business energy guide.
5. Run an energy audit and tackle the top 3 loads
For most UK businesses, lighting (LED swap), HVAC (smart thermostats, time-of-use scheduling) and refrigeration (door seals, defrost cycles) account for 60-75% of consumption. A £500 audit usually identifies £3-8k/year of savings.
Should you go direct, use a broker, or use a comparison site?
The honest answer depends on your size:
- Under 5,000 kWh/year: A reputable comparison site or going direct to 3-4 suppliers will get you within 2% of best market rate. Brokers are usually not worth it at this size.
- 5,000–100,000 kWh/year: A broker with API access to most suppliers will out-quote any individual supplier in 90% of cases. Make sure the broker fee is disclosed and uplift is reasonable (under 1p/kWh).
- Over 100,000 kWh/year: You should be running a procurement process — either via a broker who specialises in larger users, or by going direct to the 4-5 suppliers most competitive at your usage band. See our business energy procurement guide.
Renewable business electricity in 2026
Almost every major UK business electricity supplier now offers a 100% renewable tariff backed by REGO certificates (Renewable Energy Guarantees of Origin). The premium over a standard tariff has shrunk to roughly 0–0.5p/kWh in 2026 — for many suppliers there is now no premium at all.
If your supply chain or board reporting requires Scope 2 emissions reduction, a renewable tariff is the simplest single intervention. For deeper detail (REGO vs PPA vs on-site solar), read our renewable business energy guide.
Frequently Asked Questions
The average UK SME pays 27.4p per kWh for business electricity in 2026 on a new 1-year fixed contract, plus a standing charge of around 60p/day. Larger users on half-hourly meters pay 18–24p/kWh. Out-of-contract and deemed tariffs can be 50-80% higher than a properly negotiated fixed contract.
The cheapest supplier depends on your annual usage, meter type and postcode. The fastest route is a 60-second comparison that quotes every UK supplier against your exact MPAN — get a free business energy quote. For a step-by-step approach to finding the lowest unit rate, read our cheapest business energy guide.
Once you sign the new contract, the change-of-supplier process takes 21 days. There is no interruption to your supply — the same physical electricity flows through the same wires; only the billing relationship changes.
Generally no. Business electricity contracts are fixed-term and you would owe the supplier the remaining unit rate as an early-termination fee. The exception is the 30-day “cooling-off” window after a rollover or new deemed-rate notification, when Ofgem rules let you switch without penalty.
Yes — 20% VAT by default. You can drop to 5% if you use under 33 kWh of electricity per day, you are a charity, or at least 60% of your supply is for non-business use. You must submit a VAT declaration form to your supplier — the discount is not automatic.
None — the terms are used interchangeably in the UK market. “Commercial electricity” usually implies a larger user (over 50,000 kWh/year) while “business electricity” covers everything from a one-person shop upwards. Both buy from the same suppliers under the same regulatory framework.
For 80% of UK businesses, a 24-month fixed contract signed 3-6 months before the existing contract ends is the cheapest tariff type once you account for switching costs. Pass-through and flexible contracts can beat fixed rates for very large users (over 1 GWh/year) who can actively manage their procurement.
Ready to cut your bill? Get a free 60-second business energy quote or call us on 0333 015 2615. We compare every UK business electricity supplier so you can lock in the lowest rate for your meter, your postcode and your usage.
Related Reading
More from the Connection Technologies blog.