Gyms & Health Clubs: Solar panels for shopping centres

Why a gym or health club is a strong solar tenant in any retail scheme

Gyms and health clubs are an unusually good fit for solar because they run a high, continuous load through exactly the daylight hours when panels generate. Air handling and ventilation, lighting and, on wet sites, pool plant, all draw power across the full opening day, so the electricity panels make is consumed on site rather than exported at a lower price. Self-consumption is the single biggest driver of solar payback, and a busy club with all-day air-handling and pool loads can use much of what it generates. High self-consumption helps the payback, particularly on wet sites where the pool and spa loads run hard. Within a shopping centre or retail park, the gym unit is very often a large-format box with a generous flat or low-pitch roof, which suits ballasted PV without roof penetration.

Energy is a controllable cost for a club, and unlike many of its other costs it can be partly managed with a one-off investment. A health-club brand also markets sustainability, and a visible rooftop array with a live-generation display in reception can support the membership story. For the landlord of a retail scheme, the gym's strong daytime load makes its roof and its share of the car park a productive surface rather than dead space, and on-site solar improves the unit's EPC. The current MEES minimum is EPC E, and the government has proposed EPC B from 2031 for let buildings over 1,000 m2 where cost effective, subject to secondary legislation, so a better EPC protects the lettability of the unit within the wider asset.

What a typical gym install looks like and how it is sized

A system is sized from the load, not the roof. Wet sites with a pool, spa or sauna carry large heating and pump loads that align with the solar peak, so sizing leans toward self-consumption there. A dry studio gym peaks with its air handling and lighting, which is still a strong all-day profile but a different shape, so the right system is different too. At least twelve months of half-hourly meter data is the usual basis, with the real shape of the opening day modelled from early morning through to late evening and any planned member or staff EV charging added before settling on a size. Where the retail-park unit's roof is the constraint, a solar carport over its parking adds capacity and offers members shaded, EV-ready bays that double as a sustainability statement at the door.

The opening-hours profile is what makes a gym such a clean match for solar, and it is worth dwelling on when sizing. A typical club is open from before the working day starts until late evening, so the array generates straight into a live load for almost every productive daylight hour, with very little spilling to export. Where a battery is added it earns its keep by shifting late-afternoon generation into the early-evening peak, which on a dry gym is the busiest period of all. On a wet site the pool and air-handling plant give such a deep all-day base that a battery is rarely needed to lift self-consumption, and the capital is better spent on a larger array. Both options should be modelled against the metered data to see which pays better for the club.

Costs, payback and tax relief

Project cost depends on floor area and whether the site is wet or dry. Payback depends on the share of generation used on site, import tariffs and the installed price, so ask the installer for an itemised price per kWp. A wet club with a deep pool and air-handling load tends to self-consume more of its generation, while a dry studio gym, with a peakier daytime load, tends to self-consume a little less.

Solar PV is a special-rate plant-and-machinery asset, so the 100% Annual Investment Allowance (£1m) usually gives a business under the limit full relief in year one, at the company's own corporation tax rate, and spend above it can claim the 50% first-year allowance. Because solar is a special-rate asset it does not qualify for full expensing, so the AIA is the relevant relief. The Smart Export Guarantee pays for any surplus at supplier-set rates, though on a busy club more generation is self-consumed, so export is a smaller part of the picture. The cost guide works through the numbers for dry and wet sites.

Funding routes in detail

Plant and Machinery Capital Allowances are the core route: the 100% AIA up to £1m usually gives a business under the limit full relief in year one. Where the club adds member or staff EV charging, the Workplace Charging Scheme contributes up to £500 per socket (£350 before 1 April 2026), covering up to 75% of purchase and installation cost, up to 40 sockets per applicant, but it closes on 31 March 2027, so apply early. Check the parking eligibility rules: staff or fleet bays are the likelier fit.

The Sport England Swimming Pool Support Fund is now closed to submissions. It was for public leisure facilities with pools, applied for through English local authorities, and private operators were never eligible, so it is not a route for private gym chains. The Smart Export Guarantee covers export, with rates set by each supplier. Operators that prefer to keep capital free for the front-of-house experience can use a power purchase agreement, paying per kWh with the system off balance sheet, or asset finance; compare the terms against buying outright. Where the unit sits within a let retail scheme, it is also worth modelling whether the landlord funds and recovers the cost through the service charge or a green-lease rent share.

Compliance and sector considerations

The most important sector point is wet-area electrical safety. Pool plant rooms, spa and wet areas need careful electrical zoning during install under the BS 7671 special-location requirements, and the install should be designed around that from the outset rather than treated as an afterthought. Getting the zoning right at design stage avoids costly rework and keeps the wet-side electrical certification intact, which matters because the pool plant is also the load that justifies the largest array. The wet-area electrical work should be coordinated with the existing pool plant contractor so the two trades do not cut across each other on site.

A leased retail-park unit needs landlord consent and a wayleave or licence to alter before work starts, and within a shopping-centre scheme the metering and service-charge position needs to be settled too. Rooftop PV on a commercial building is generally permitted development in England under Class J of Part 14 of Schedule 2 to the GPDO 2015, within limits, with the council's prior-approval decision on design and external appearance, including glare, needed above 50 kW, and a roof structural survey is required before loading a ballasted array onto a large-format box. A G99 application and DNO approval before connection are needed above 16 A (3.68 kW) per phase, which a commercial array will exceed, so it pays to submit early because the DNO sets the G99 programme and it is often the longest item. Asbestos cement roofing on any older outbuilding must be replaced before panels go on, and CDM 2015 duties apply to the works. MEES is the direct driver for the unit's EPC: the current minimum is EPC E, with EPC B from 2031 proposed for let buildings over 1,000 m2 where cost effective. Larger operators may be in scope for ESOS Phase 4, with its notification due by 5 December 2027.

How to approach this kind of project

The system should be sized from half-hourly meter data, because the difference between a dry studio and a full wet club changes the right system entirely, and the pool load is what allows sizing hard for self-consumption. Any EV charging is best designed as part of the same project, the car park assessed alongside the roof, and the install zoned carefully around pool plant and wet areas to BS 7671.

A structural survey and a roof and asbestos check should be completed before a quote is issued, and the G99 application submitted early to start the connection clock. The works should be scheduled around opening hours so members see minimal disruption, with the only outage being the short final grid connection. Ask for a fixed-price proposal covering the capital, PPA and finance routes; where the unit is leased, ask whether the installer can supply wayleave and consent templates, as the landlord conversation has to be settled before work starts. Ask for the warranty, insurance, annual operation and maintenance and 24/7 remote monitoring terms in writing; monitoring can feed a live-generation display in reception.

If your gym anchors a wider scheme, see solar for shopping centres and retail parks, and for the food anchor alongside it see supermarket and convenience solar. When you are ready, read the cost guide and funding routes, send an enquiry, or start with the solar FAQs.