Business energy is one of the largest and most controllable operating costs for UK businesses. Yet many companies remain on expensive default or out-of-contract rates simply because they haven't compared the market. In 2026, comparing and switching business energy can save thousands of pounds per year — and the process takes less than 30 minutes.
Our Verdict
The biggest mistake UK businesses make with energy is staying on out-of-contract or deemed rates — which can be 40–60% higher than the best available fixed deal. Comparing prices 4–6 months before your renewal date and locking in a competitive fixed-rate contract is the single most impactful energy cost action most businesses can take in 2026.
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Business Energy Prices UK 2026
Source: businesselectricityprices.org.uk (February 2026), compareyourbusinesscosts.co.uk. Indicative — get a quote for your specific address.
Business Size
Annual Usage
Electricity (p/kWh)
Gas (p/kWh)
Monthly Cost (est.)
Small (e.g. small office)
5,000–15,000 kWh
27.8p
7–9p
~£238/mo electricity
Medium (e.g. retail unit)
15,000–25,000 kWh
27–28p
7–8p
~£400–650/mo
Large (e.g. warehouse)
25,000–50,000 kWh
26.2p
7p
~£862/mo electricity
Enterprise (50,000+ kWh)
50,000+ kWh
Bespoke
Bespoke
Half-hourly meter required
Key Business Energy Suppliers UK 2026
Source: kilowattenergy.co.uk Top 10 Business Energy Suppliers 2026, compareyourbusinesscosts.co.uk. April 2026.
Supplier
Best For
Rating
Green Tariff
British Gas Business
Large enterprises, multi-site
9.2/10
Available
Octopus Energy for Business
SMEs, 100% renewable, tech platform
9.0/10
✅ 100% renewable
E.ON Next Business
SMEs, digital platform, fixed rates
Strong
Available
EDF Business Energy
Medium-large, long-term fixed contracts
Strong
✅ Available
Yu Energy
SMEs, personalised service, green tariffs
8.2/10
✅ Competitive green
Drax
Low-carbon transition, mid-tier businesses
8.0/10
✅ Specialist
ScottishPower Business
Scotland and wider UK
Good
Available
SSE Business Energy
Established mid-large businesses
Good
Available
Business Energy Tariff Types
Source: Love Energy Savings, British Business Energy. April 2026.
Tariff Type
How It Works
Best For
Risk Level
Fixed Rate
Price per kWh locked for contract term (1–5 years)
Budget certainty, price spike protection
Low
Variable Rate
Unit rate fluctuates with wholesale market
When prices expected to fall
High
Flexible/Pass-Through
Wholesale price passed directly to business
Large businesses with energy expertise
Medium-High
Green Tariff
100% renewable electricity (REGO-backed)
Sustainability goals, CSR reporting
Low
Economy 7/10
Cheaper rates at off-peak hours
Businesses with night-time heavy usage
Low-Medium
How to Compare Business Energy Prices: Step by Step
Find your current contract end date and renewal window (usually 90–120 days before expiry)
Gather your annual energy consumption (kWh) from a recent bill or smart meter data
Enter your business postcode and consumption on a comparison site or contact a broker
Compare at least 3–4 quotes — unit rate, standing charge, contract length, and exit fees
Check supplier financial stability — over 20 UK energy suppliers have collapsed since 2021
Sign and confirm your new contract — your new supplier manages the switch
Note your new contract end date and set a reminder 4–6 months in advance
Why Businesses Overpay for Energy
Out-of-contract rates — 40–60% higher than best available fixed deals
Auto-renewal — rolling onto a new contract without shopping around
Missing the renewal window — most contracts require 90–120 days notice to switch
Assuming big suppliers are cheapest — challenger suppliers often offer better rates
Not using a broker — brokers access wholesale rates not available directly
💡 VAT on business energy: Businesses pay 20% VAT on energy (vs 5% for domestic). VAT-registered businesses can reclaim this. Businesses using less than 33 kWh electricity/day or 145 kWh gas/day may qualify for the reduced 5% rate — check with your supplier.
Business Energy vs Domestic Energy
Source: Ofgem, Love Energy Savings. April 2026.
Factor
Business Energy
Domestic Energy
Price cap
❌ Not covered by Ofgem cap
✅ Protected by Ofgem price cap
Contract length
1–5 years typical
12 months typical
VAT rate
20% (reclaimable if VAT-registered)
5%
Cooling-off period
❌ No 14-day right
✅ 14-day cooling off
Switching time
2–6 weeks
5 working days
Green tariffs
✅ Available
✅ Available
Frequently Asked Questions
How much is business electricity per kWh in the UK 2026?
Average business electricity rates for small businesses are 27.8p per kWh in 2026, with a daily standing charge of around 45.6p. Larger businesses typically pay around 26.2p per kWh. Rates vary by supplier, contract type, location, and consumption. Source: businesselectricityprices.org.uk, February 2026.
How much is business gas per kWh in the UK 2026?
Business gas costs average 7–9p per kWh in 2026, with standing charges ranging from 50p to £1.20 per day. Source: compareyourbusinesscosts.co.uk, April 2026.
How do I compare business energy prices?
Use a business energy comparison site such as Uswitch Business, Love Energy Savings, or British Business Energy. Enter your business postcode and annual consumption to receive quotes from multiple suppliers. Alternatively, use a regulated energy broker who can access wholesale rates.
Is business energy cheaper than domestic energy?
Not necessarily per unit — but businesses can access longer fixed-term contracts (1–5 years) that can lock in competitive rates. Larger businesses typically pay lower unit rates due to higher consumption volumes. Unlike domestic tariffs, business energy is not subject to the Ofgem price cap.
When is the best time to compare business energy prices?
Start comparing 4–6 months before your contract end date. Most business energy contracts have a renewal window of 90–120 days before expiry — missing this window can result in automatic rollover onto expensive out-of-contract rates.
Disclaimer: This article is for informational purposes only and does not constitute financial or energy advice. Business energy prices change daily — always obtain quotes directly from suppliers or via a regulated broker before making decisions. Sources: Ofgem, Uswitch, MoneySuperMarket, compareyourbusinesscosts.co.uk, businesselectricityprices.org.uk, Love Energy Savings, kilowattenergy.co.uk. April 2026.
The content on Kaeltripton.com is for informational and educational purposes only and does not constitute financial, investment, tax, legal or regulatory advice. Kaeltripton.com is not authorised or regulated by the Financial Conduct Authority (FCA) and is not a financial adviser, mortgage broker, insurance intermediary or investment firm. Nothing on this site should be construed as a personal recommendation. Rates, figures and product details are indicative only, subject to change without notice, and should always be verified directly with the relevant provider, HMRC, the FCA register, the Bank of England, Ofgem or other appropriate authority before any financial decision is made. Past performance is not a reliable indicator of future results. If you require regulated financial advice, please consult a qualified adviser authorised by the FCA.
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Chandraketu Tripathi
Finance Editor · Kaeltripton.com
Chandraketu (CK) Tripathi, founder and lead editor of Kael Tripton. 22 years in finance and marketing across 23 markets. Writes on UK personal finance, tax, mortgages, insurance, energy, and investing. Sources: HMRC, FCA, Ofgem, BoE, ONS.
