August 2026, latest update
How Much Energy Does a Small Business Use UK?
How much energy a small business uses in the UK is one of the most common questions we hear from business owners who have just received a bill that seems too high and are not sure whether their usage is normal, excessive, or simply being charged at the wrong rate.
The honest answer is that it varies enormously by sector. A small restaurant uses roughly five to six times more energy than a small office of equivalent size. What matters is not just how much your business consumes; it is whether your consumption is in line with similar businesses and whether you are paying a competitive rate for it.
This guide gives you the benchmarks sector by sector, explains what drives small business energy costs, shows you how to calculate your annual cost in under a minute, and tells you what to do if your bill seems higher than it should be.
How Much Energy Does a Small Business Use in the UK -Benchmarks by Sector
According to the UK government’s Non-Domestic National Energy Efficiency Data Framework (ND-NEED) published in 2025, the median electricity consumption across all non-domestic buildings in England and Wales is approximately 6,600 kWh per year. But that median covers everything from a market stall to a warehouse.
Here are the realistic consumption ranges for small businesses by sector:
| Business type | Annual electricity (kWh) | Annual gas (kWh) | Main energy drivers |
|---|---|---|---|
| Small office (5-10 staff) | 5,000 – 15,000 | 8,000 – 20,000 | Computers, lighting, heating |
| Retail shop (no refrigeration) | 8,000 – 15,000 | 5,000 – 15,000 | Lighting, heating, tills |
| Retail shop (with refrigeration) | 15,000 – 25,000 | 5,000 – 15,000 | Refrigeration, lighting, heating |
| Café / coffee shop | 15,000 – 30,000 | 10,000 – 20,000 | Espresso machines, ovens, refrigeration |
| Restaurant (30-50 covers) | 25,000 – 45,000 | 40,000 – 80,000 | Commercial kitchen, extraction, refrigeration |
| Pub (wet led) | 20,000 – 30,000 | 15,000 – 30,000 | Cellar cooling, fridges, heating |
| Pub (food led) | 30,000 – 45,000 | 30,000 – 60,000 | Full commercial kitchen + pub equipment |
| Hair / beauty salon | 8,000 – 20,000 | 5,000 – 15,000 | Dryers, styling equipment, hot water |
| Dental practice (3 surgeries) | 15,000 – 25,000 | 5,000 – 10,000 | Autoclaves, compressors, imaging, lighting |
| Light manufacturing / workshop | 20,000 – 60,000 | 10,000 – 40,000 | Machinery, compressors, heating |
| Small hotel (10-20 rooms) | 30,000 – 60,000 | 40,000 – 80,000 | Heating, hot water, kitchen, laundry |
| Gym / fitness studio | 20,000 – 40,000 | 10,000 – 25,000 | HVAC, showers, lighting, equipment |
Key takeaway: Your sector matters far more than your size. A small restaurant will almost certainly use more energy than a small accountancy firm with the same number of employees on the same street. If your consumption falls within your sector range above, your usage is normal; the question is whether you are paying a competitive rate for it.
What Drives Small Business Energy Costs?
| Factor | What it means for your bill |
|---|---|
| Sector | The single biggest driver. Catering equipment, refrigeration and industrial machinery are far more energy-intensive than computers and lighting. Hospitality businesses have the highest energy intensity of any small business sector. |
| Premises size | Larger premises cost more to heat, cool and light. Simple arithmetic, but often overlooked when comparing bills. |
| Building age | Older buildings are typically less efficient. Heat escapes through walls, roofs and windows before it does anything useful. A poorly insulated older building can use 30-50% more heating energy than a modern equivalent of the same size. |
| Hours of operation | A business open 7 days uses more than one open 5 days. A café open 7am-8pm uses more than one open 9am-5pm. Trading hours have a direct and proportional impact on consumption. |
| Equipment age | A refrigerator bought in 2010 typically uses 40-60% more electricity than a modern equivalent. Older ovens, HVAC systems and industrial compressors carry the same penalty. |
| Your tariff | Two businesses with identical consumption can have very different bills depending on their contract. Unlike domestic customers, business energy is not price-capped. Your rate depends entirely on what you agreed with your supplier and when. |
How to Calculate Your Small Business Annual Energy Cost
You do not need an accountant. The calculation takes 60 seconds using figures from your most recent energy bill.
The formula:
Annual cost = (Annual kWh × unit rate in pence ÷ 100) + (standing charge in pence × 365 ÷ 100)Worked example- small cafe:
| Item | Figure |
|---|---|
| Annual electricity consumption | 18,000 kWh |
| Unit rate | 27p per kWh |
| Annual usage cost | 18,000 × 27p ÷ 100 = £4,860 |
| Standing charge | 35p per day |
| Annual standing charge | 35p × 365 ÷ 100 = £127.75 |
| Total annual electricity cost | £4,987.75 |
Where to find your consumption figure:
Your annual kWh is shown on your most recent energy bill, usually labelled “estimated annual consumption” or “annual usage”. It is also in your online supplier account. Smart meter users can see actual rather than estimated consumption in their supplier’s app.
Current Business Energy Rates- August 2026
| Energy type | Competitive fixed rate (August 2026) | Standing charge |
|---|---|---|
| Electricity — small business | 24p – 28p per kWh | 25p – 40p per day |
| Electricity — medium business | 22p – 26p per kWh | 30p – 50p per day |
| Gas — small business | 6p – 8p per kWh | 25p – 35p per day |
| Gas — medium business | 5.5p – 7.5p per kWh | 28p – 40p per day |
If your current unit rate is above these ranges and your contract was not signed during the 2022-23 price peak, you are likely on an out-of-contract or deemed rate, or your tariff has not been reviewed recently. Both are worth addressing immediately through a free commercial energy comparison.
Along with these charges, every supplier is now charging TNUoS and DUos charges as per the recent change in policy, and you can find out more about it here: TNUoS and DUoS Charges Explained
FAQs- Small Business Energy Use UK
Q: How much energy does a small business use in the UK on average?
The UK government’s ND-NEED 2025 data shows a median of approximately 6,600 kWh per year across all non-domestic buildings. For small businesses specifically: offices typically use 5,000-15,000 kWh, retail 8,000-25,000 kWh, cafés 15,000-30,000 kWh, restaurants 25,000-45,000 kWh electricity plus gas, and dental practices 15,000-25,000 kWh. Sector matters far more than size.
Q: How do I calculate my small business energy cost?
Multiply your annual kWh consumption by your unit rate in pence then divide by 100. Add your standing charge in pence multiplied by 365 then divide by 100. Your annual kWh figure is on your most recent energy bill or in your online supplier account.
Q: What is a normal electricity unit rate for a small business in 2026?
Competitive fixed rates in August 2026 range from 24p to 28p per kWh for small businesses. If your current rate is above 30p and your contract was not signed during the 2022-23 market peak, it is worth getting a comparison immediately.
Q: Why does my small business pay a higher rate than larger companies?
According to Ofgem’s 2026 State of the Market report, smaller businesses consistently pay higher unit rates than larger ones. This reflects purchasing power — large businesses attract aggressive supplier competition, while small businesses have less leverage. Using an independent broker like Kilowatt Energy gives you access to the same panel of suppliers regardless of your consumption level.
If your business is looking to get the best commercial energy UK rates, every week you delay costs you money that cannot be recovered. Call us today, and we will get you onto a competitive fixed deal within days.
Get in touch today to know more!
This guide was written by the Kilowatt Energy advisory team, independent business energy and utility brokers
registered with the Retail Energy Code (REC), ADR Registration C35KILO01, Company No: 15687169. We have
helped hundreds of UK businesses reduce electricity, gas and water costs since 2024.