If your energy bills have increased again this year, you are not imagining it. Business energy costs remain one of the biggest controllable overheads on any UK company’s balance sheet, and how much you pay depends heavily on your business size, your contract type, and how proactive you are about switching.
In this guide, we break down the average business energy cost in the UK for 2026 and explain how to compare business electricity prices by company size, along with concrete steps that will allow you to reduce your bills.
Key Takeaways
The UK average business electricity rate sits at around 23 to 24 pence per kWh, including the Climate Change Levy (CCL), though smaller businesses typically pay noticeably more per unit.
Smaller businesses pay higher rates per kWh than larger ones, mainly because bigger consumers can negotiate bulk discounts.
Fixed-rate contracts protect you from price rises, whereas variable contracts can save you money when the market falls but carry more risk.
Deemed and out-of-contract rates can cost two to three times more than a negotiated deal, so avoid them by tracking your renewal date.
Simple efficiency measures such as LED lighting, insulation, and staff engagement can meaningfully reduce consumption without major investment.
Comparing suppliers with ComparedBusiness UK, ideally 3 to 6 months before your contract ends, is the single most effective way to control energy costs.
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What Is Business Energy?
Business energy is the gas and electricity supplied to commercial premises such as offices, shops, warehouses, restaurants and factories, rather than to private homes. In several important ways, its pricing and regulation differ from domestic energy.
- No Price Cap: Business energy prices, unlike domestic tariffs, are not protected by an Ofgem (Office of Gas and Electricity Markets) price cap; therefore, rates are negotiated directly with suppliers or brokers.
- Contracts Rather Than Tariffs: Businesses commonly enter fixed-term contracts of 1 to 5 years, not rolling monthly tariffs.
- VAT Differences: Businesses pay the 20% rate of UK VAT on energy, compared with 5% for households, unless they qualify for a reduced rate.
- Climate Change Levy (CCL): An extra environmental tax on business energy bills, unless you are either exempt or have a Climate Change Agreement.
Since there is no price cap, what you pay depends almost entirely on when you signed your contract, how much energy you use, and whether you negotiated well at renewal.
What Is The Average Business Energy Cost In The UK?
According to recent data published by the Department for Energy Security and Net Zero (DESNZ), UK businesses paid around 23-24 pence/kWh on average for electricity, including the Climate Change Levy.
However, this average hides significant variation: smaller businesses consistently pay more per unit than larger ones.
| Business Size | Annual Usage (MWh) | Average Rate excluding CCL (p/kWh) | Average Rate including CCL (p/kWh) |
|---|---|---|---|
|
Very Small |
0 to 20 |
35.45p |
36.11p |
|
Small |
20 to 499 |
28.86p |
29.57p |
|
Small/Medium |
500 to 1,999 |
27.80p |
28.40p |
|
Medium |
2,000 to 19,999 |
24.80p |
25.36p |
|
Large |
20,000 to 69,999 |
23.00p |
23.56p |
|
Very Large |
70,000 to 150,000 |
22.08p |
22.51p |
|
Enterprise |
150,000+ |
20.67p |
21.13p |
|
UK Average |
- |
23.46p |
23.99p |
Business Electricity Rates vs Business Electricity Prices vs Business Gas: A Quick Comparison
These terms get used interchangeably, but they don’t mean the same thing. Here is a quick comparison:
| Factor | Business Electricity Rates | Business Electricity Prices | Business Gas |
|---|---|---|---|
|
Definition |
The unit cost you pay per kWh of electricity used, plus your daily standing charge |
The overall cost on your bill is the total of your usage, standing charges and any levies |
Prices are usually shown separately from electricity, in pence per kWh, and are generally cheaper per unit |
|
What Determines It? |
Set by your contract type: fixed, variable or deemed |
This charge is shown as a total on invoices and varies by usage pattern and time of year |
This figure depends on wholesale gas prices, which are more volatile than electricity |
|
Practical Relevance |
Usually the figure is quoted when comparing suppliers |
Useful for budgeting your total annual spend |
Relevant mainly to businesses with gas heating, cooking or manufacturing processes |
What Affects Business Energy Costs?
Many factors go into calculating the cost of your commercial electricity rates and gas prices:
- Volume and Annual Usage: Customers with higher volume usually get lower unit rates when negotiating.
- Location: Regional distribution costs affect standing charges
- Meter Type: Half-hourly meters (typically on larger sites) provide more accurate, often better-priced billing.
- Contract Type: Fixed, variable and deemed rates all have different risk and cost profiles.
- Sector and Usage Pattern: Energy-intensive industries such as manufacturing or hospitality would often negotiate differently to office-based businesses.
- Wholesale Market Conditions: International gas and electricity prices ripple through to the rates suppliers offer.
Best Business Energy Rates: Fixed vs Variable vs Deemed Contracts
Choosing the right contract type has a bigger impact on your bills than almost any other decision you will make. Here is how the three main options compare:
| Contract Type | How It Works | Best For | Watch Out For |
|---|---|---|---|
|
Fixed-Rate |
Unit rate locked in for the length of the contract, typically 1 to 5 years |
Businesses that want predictable, easy-to-budget bills |
Exit fees if you leave early; you won’t benefit if market prices fall |
|
Variable-Rate |
Unit rate moves up and down with the wholesale market |
Businesses that are comfortable with fluctuating costs or expecting prices to fall |
Bills can rise sharply if wholesale prices spike |
|
Deemed/Out-Of-Contract |
Default rate charged when no contract is in place |
Nobody, by design; it’s a fallback, not a choice |
It can cost 2-3 times more than a negotiated contract rate |
Commercial Electricity Rates By Business Size
The size of the business is one of the biggest factors in determining what rate will be offered to you.
As a general rule, the more electricity your business consumes annually, the lower your per-kWh rate, because suppliers can offer bulk-usage discounts to larger customers.
- Very small businesses (under 20 MWh/year) are generally charged the most per kWh, often at rates of over 35p.
- Small to medium businesses (20 to 2,000 MWh/year) pay in the high 20s pence range but noticeably less than very small businesses.
- Medium- to large-sized businesses (2,000 to 70,000 MWh/year) receive competitive negotiated rates, often in the low-to-mid 20s.
- Large and extra-large consumers (70,000 MWh/year) access some of the most competitive commercial electricity rates, often below 22p.
If your business falls into the smaller usage bands, don’t just assume you are stuck with high rates; comparing multiple suppliers and using a broker can often close much of this gap.
Why Are Business Energy Costs So High?
Most businesses that overpay for energy fall into one of these traps:
- Rollover Contracts: If you don’t cancel in time, your supplier can switch you automatically onto another contract, often at a higher price.
- Deemed Rates: If you move to new premises and your contract is not yet agreed, a deemed rate applies that can be 2 to 3 times more costly than an agreed deal.
- Not Switching: Remaining with the same supplier for years without comparing prices is often an indication of missing out on better deals elsewhere.
- Old Equipment and Buildings: Poor insulation, outdated lighting, and keeping machines running overnight all increase consumption.
- Inaccurate Billing: Estimating bills based on previous meter readings may result in an overbilled or underbilled amount.
How To Reduce Your Business Energy Cost? 7 Practical Tips
Here are 7 practical tips:
- Compare Suppliers before Your Contract Expires: Set a reminder 3 to 6 months out from when you renew, and never get caught on a rollover or deemed rate again.
- Perform an Energy Audit: Understand where your consumption costs are highest and look for quick fixes, such as ensuring that heating equipment is not on standby when it is not needed.
- Make the Switch to LED: One of the most rapid money-saving efficiency upgrades within reach for many businesses.
- Insulation and Draught-Proofing: Reduce both heating and cooling demand, particularly in older commercial buildings.
- Smart or Half-Hourly Meter: Provides up-to-the-second usage data to help you identify waste and forecast billing much more accurately.
- Engage Employees: Small daily habits, like turning off unused equipment and lighting, can compound across the entire workforce.
- Utilise a Broker or Comparison Service: Particularly helpful if you have multiple sites or meters to manage, as they can find rates and deals you may not find on your own.
How To Switch Business Energy Supplier?
Changing suppliers is much easier than most owners would think. Here’s the process:
- Check Current Rates vs The Market: This can be done using a comparison service or requesting direct quotes from suppliers.
- Select Your New Supplier and Accept the Offer: Make sure you have available details of your business, current provider, and recent invoices.
- Your New Supplier Will Take Care of the Switch: They will deal with your current provider and set up a date for the changeover, which often takes place within weeks.
- Get Your Last Bill from the Old Supplier: And don’t worry, when you switch, there will be no break in the supply of energy.
One thing to check before making the switch is whether your current fixed-rate contract is ending while you’re still midway through it. You could end up paying an exit fee.
It is usually still worth comparing the numbers, as the savings from switching can cancel out that fee, but it is worth a check before you commit.
Find The Top Business Energy Supplier With ComparedBusiness UK
Finding the best business energy rates should not mean spending hours on the phone talking to multiple suppliers.
ComparedBusiness UK helps you compare business energy quotes side by side, so you can see exactly how different suppliers, contract types and rates stack up for your business size and usage.
Whether you’re renewing an existing contract, relocating, or just want to make sure you are not overpaying, comparing your options takes minutes and could save your business a meaningful amount over the course of your next contract.
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FAQs
Due to bulk usage, businesses usually pay less for their rate per kWh than households, but they do also incur higher levels of VAT (20% rather than 5%, paid by domestic customers) and aren’t protected by an Ofgem price cap, so overall costs can still be higher.
Deemed rates apply when a business uses energy without an assigned contract, such as when moving premises. Without negotiating an agreement, suppliers default to a rate that could be two to three times as much as a standard contract price.
If you are mid-contract on a fixed-rate deal, most suppliers charge an exit fee to leave early. If you are nearing the end of your contract or moving premises, you may be exempt from this fee.
You can start comparing and arranging a switch at any time, though if you are on a fixed-term contract, you may face an exit fee for leaving early. If you are on a deemed or out-of-contract rate, you are free to switch immediately without any penalty.
It is worth comparing rates at least once a year and always 3 to 6 months before your current contract ends, since prices and available deals change regularly.