Gym business energy

A gym buys energy as a business, and its bill is shaped by long opening hours, air handling, hot showers and sometimes a pool or sauna. Big sites often have half-hourly metering and a large gas load; small studios behave more like a salon. The best savings usually come from matching the contract to how and when you use power, and from checking the non-energy lines on the bill.

What drives a gym bill

• Long hours. A 24-hour gym has little downtime, so a cheap night rate helps only if you use a meter that records day and night separately.
• Ventilation and cooling. Keeping a hot, crowded room comfortable takes fans, air handling and sometimes air conditioning.
• Hot water. Showers and changing rooms can be a major gas (or electric) load.
• Pool, sauna or steam. Heating water and air is energy-hungry, so leisure centres can use many times what a studio does.
• Equipment and lighting. Treadmills, screens, lights and music all add up. How the bill splits between these depends on the site, so sub-metering or half-hourly data is the only way to know yours.

Leisure centres run by councils or trusts may buy energy through a wider public-sector arrangement, which is outside what an independent gym owner sees. This page assumes you hold your own business contract.

Where you sit: micro, small or neither

A studio with a handful of staff and electricity below 100,000 kWh a year is a microbusiness for electricity. A mid-sized gym using 150,000 kWh is above that line, but at or under 200,000 kWh it still counts as a small business, which keeps access to the Energy Ombudsman. A gym with a pool may use more than 293,000 kWh of gas and still be small up to 500,000 kWh. See microbusiness definitions and energy rates by business size.

Worked example: a mid-sized gym

A gym uses 150,000 kWh of electricity and 400,000 kWh of gas a year. Using the small-business average fixed rates from Moneysupermarket Business (21 October 2026): electricity 27.2p/kWh plus 118.9p/day; gas 8.5p/kWh plus 49.5p/day. These are indicative averages from a comparison site, not an offer.

Item	Sum	Cost
Electricity units	150,000 × £0.272	£40,800.00
Electricity standing	365 × £1.189	£433.99
Gas units	400,000 × £0.085	£34,000.00
Gas standing	365 × £0.495	£180.68
Before VAT		£75,414.67
VAT at 20%	£75,414.67 × 0.20	£15,082.93
Total		£90,497.60

A VAT-registered gym that makes taxable sales can usually reclaim this VAT, so the cash effect is mostly timing. If some of your income is VAT-exempt, or you are a non-profit club, recovery may be restricted, so ask your accountant. See reclaiming VAT on business energy.

Climate Change Levy at 0.801p/kWh applies from 1 April 2026 (and VAT is charged on top of it): electricity 150,000 × £0.00801 = £1,201.50; gas 400,000 × £0.00801 = £3,204. Check whether your unit rate already includes it.

A gym with a gas bill that large may exceed the small-use limits for the reduced VAT rate (145 kWh a day of gas; 400,000 ÷ 365 = about 1,096 kWh a day), so 20% applies.

Meters and when you use power

Larger gyms are commonly moved to half-hourly metering, which records every 30 minutes and can change how some charges are applied. Our guides explain half-hourly meters, why a business gets moved to one and day and night rates.

If your peak is the 6 to 9am and 5 to 8pm rush, there is little you can do about when members train, but you can often shift things you control: pre-heating pool water, laundry, and some ventilation schedules. Ask any supplier or broker how their pricing treats your load pattern.

Contracts and renewals

Because gym use is steady and predictable, a fixed-price deal is usually straightforward to quote. The commonest problem is not the price; it is missing the renewal window and rolling on to an out-of-contract rate. Our out-of-contract calculator shows the likely gap. Microbusinesses cannot be forced to give notice to leave once out of contract (except under an evergreen contract, up to 30 days), and rollovers can be no more than 12 months. See rollover contracts.

If you are moving into a unit or taking over a gym, you may land on a deemed rate. You can choose a contract at any time, so do it in week one.

Ways to cut consumption

• Set showers and pool temperatures to the lowest level that meets health and comfort rules, and service the boiler.
• Switch to LED lighting with occupancy sensors in studios and storage. See LED lighting for business.
• Use heat recovery from ventilation where the building allows it.
• Fit a smart or monitored meter so you see use by hour. See energy monitoring.
• Consider solar if you have roof space and daytime demand. See commercial solar.

We do not promise a saving percentage, as results depend on the building.

If the bill looks wrong

High bills from estimated readings are common when meters are hard to access. Submit your own reading. For a dispute, complain to the supplier first; after eight weeks, or with a deadlock letter, a micro or small business can go to the Energy Ombudsman. See disputing a high bill.

Questions worth asking before you sign

• Is the unit rate quoted fixed for the whole term, and does it include Climate Change Levy?
• Which network and policy charges are passed through? See pass-through versus fixed charges.
• What is the standing charge, and is it the same on each meter if you have more than one?
• What are the exit terms if you sell the club or close a site?

If you run several clubs, you may be able to cover them under one agreement; see switching energy for multiple sites. Treat any quote that cannot be explained line by line as a warning sign.

Also ask whether the supplier can provide half-hourly data in a usable format, so you can see which hours drive the bill and test changes such as later pool heating. Reviewing a month of that data often shows base load running overnight that nobody expected.

Next steps

1. Total your annual kWh by fuel from the last 12 months of bills.
2. Note your contract end date and diary a reminder four to six months ahead.
3. Run your figures through the cost calculator.
4. Get quotes with broker fees disclosed.