What UK businesses actually pay for electricity and gas, how the price is built, and the levers that move it. A full reference for anyone about to buy or renew.
Business energy prices in the UK are set contract by contract, not by a national cap, so what one business pays can differ sharply from the business next door. Price depends on your consumption volume, meter type, contract length, credit standing and the point in the wholesale cycle at which you buy.
Unlike household energy, commercial electricity and gas are unregulated on price. There is no equivalent of the domestic price cap protecting a shop, office or factory. This makes shopping the market, and timing the purchase, the two biggest factors a business owner can control.
A typical small business electricity unit rate sits somewhere in the range of 22p to 32p per kWh at the time of writing, with standing charges of 25p to 60p per day depending on region and meter capacity. Gas typically runs lower, often 6p to 9p per kWh, with its own standing charge. These figures move with wholesale markets and should always be treated as indicative rather than promised.
Every quote is built from two broad layers. The first is the wholesale commodity cost, the actual electricity or gas, which suppliers buy in advance and which moves with global and UK markets. The second is a set of non-commodity costs: network charges for using the grid or gas pipes, government environmental and social levies, balancing costs and the supplier's own margin. Non-commodity costs can account for well over a third of a commercial electricity bill.
Contract length is one of the biggest levers a business has. A one-year fixed contract exposes you to renewal risk sooner but usually reflects only near-term wholesale prices. A three-year fixed contract spreads risk further out and can smooth volatility, though the rate quoted will reflect the supplier's view of prices over the whole term, not just today.
Consumption volume changes your buying power. A micro business using a few thousand kWh a year will be priced differently, and generally less favourably per unit, than a manufacturer using hundreds of thousands of kWh, because larger loads are cheaper for a supplier to serve relative to the fixed costs of managing an account.
Meter type matters too. Non half-hourly meters, common in small and medium premises, are billed on estimated or actual monthly reads. Half-hourly meters, standard for larger sites, report consumption every thirty minutes and are priced with more granularity, which can work in a business's favour if it can shift load away from expensive periods.
Credit risk is priced in whether you notice it or not. A business with a strong payment history and stable trading position will usually see tighter, more competitive quotes than a newer or higher-risk business, because the supplier is pricing in the chance of bad debt across its whole book.
Worked example: a café using 15,000 kWh of electricity a year at 28p per kWh spends roughly £4,200 on commodity alone, before adding a standing charge of, say, 45p a day, which adds around £164 a year. Total electricity spend before VAT would sit near £4,360. Running the same volume at 24p per kWh would save around £600 a year, which shows why even a small rate difference matters at low volumes.
Prices also carry a strong seasonal and macro pattern. Wholesale gas and electricity in the UK are influenced by weather, European gas storage levels, LNG shipping availability and, for electricity, the cost of gas-fired generation which often sets the marginal price. None of these are things a single business can influence, but understanding that prices move in cycles helps with timing a renewal.
VAT and the Climate Change Levy also affect the final bill. Most businesses pay VAT at 20% on energy, though qualifying businesses using energy mainly for domestic-type purposes on the same premises, or using very low volumes, may qualify for the reduced 5% rate. The Climate Change Levy is a separate charge added to most business energy bills, with some exemptions and reliefs available.
The practical way to manage all this is to treat energy buying as a recurring commercial decision rather than a one-off task. Track your contract end date and notice period, gather twelve months of consumption data before you go to market, and compare quotes across the whole market rather than accepting a rollover offer.
Comparison services such as Compare Market exist because most businesses do not have the time or market access to tender every meter individually. A broker or comparison platform can put your consumption profile in front of multiple suppliers at once and negotiate on your behalf, which usually produces a tighter range of quotes than approaching one supplier alone.
The single biggest mistake businesses make is leaving the decision until the contract has already lapsed. Out-of-contract and deemed rates, charged automatically when no new agreement is in place, are consistently the most expensive way to buy energy. Starting the renewal process three to six months ahead avoids this entirely.
It helps to separate the questions 'is this a fair market price' from 'is this the cheapest possible price', because they are not the same thing. A fair market price reflects your consumption, meter type and credit profile priced against current wholesale conditions; the cheapest possible price is whatever the most aggressive supplier happens to be offering that week to win volume. Chasing the second can mean accepting a supplier with weak billing systems or restrictive contract terms, so most businesses are better served by tendering properly and picking the best all-round offer rather than the single lowest headline figure.
Multi-site businesses face an added layer of complexity because contract end dates rarely line up across a property portfolio. Bringing sites onto a common renewal date over one or two contract cycles, sometimes called basket alignment, increases the combined volume presented to suppliers at each tender and generally improves the quality of offers received, though it takes deliberate planning rather than happening by accident.
Ofgem currently licenses six regional Distribution Network Operator groups covering the fourteen electricity distribution areas of Great Britain, and each one sets its own charge for using the local wires that carry power to your premises. Two businesses with identical usage in, say, Cardiff and Newcastle can see a noticeably different network line on their bill purely because of which operator serves that postcode.
Every supply point carries a reference number that suppliers use to identify it before pricing: an MPAN for electricity, built from a 21-digit code that embeds the network area and meter type, or an MPRN for gas. Whichever fuel you are buying, this number sits on a recent bill and is the first thing a broker or supplier will ask for.
VAT is charged at the standard 20% rate on most commercial energy bills, dropping to 5% only where daily consumption falls under specific thresholds or where a meaningful share of use on the premises is domestic or charitable rather than commercial. The Climate Change Levy sits alongside VAT as a separate per-kWh charge, with relief available to a narrow band of energy-intensive industries that hold a Climate Change Agreement.
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