Gyms & Health Clubs: Solar panels for dealerships

Why a gym sits alongside a dealership as a strong daytime solar site

Health clubs and dealerships share the feature that makes solar pay: their electricity demand runs all day, in the hours panels generate most. A gym lights its floor, runs air handling and ventilation through every opening hour, and a wet site adds pool plant, pumps and heating that draw heavily and constantly. For an operator who already understands the dealership case for solar panels, the gym is the same argument in a different building. Because the load sits under the generation curve, a rooftop array is consumed on site rather than exported cheaply, and self-consumption is what drives the return, with a typical simple payback near 5.5 years and quicker where wet-side load is high. The wettest sites, with a 25-metre pool, spa and sauna, carry strong all-day baseload that solar matches better than almost any other leisure building. Pool plant, air handling, heating and pumps create a large, continuous draw, and because that load is present every opening hour rather than spiking and falling, a well-sized array spends very little of its output on export and almost all of it on avoided import, which is the position that produces the fastest payback in any building type.

Energy is now one of the largest controllable operating costs a club carries, alongside staff, and unlike membership income it can be fixed for two decades with a single investment. A visible rooftop array and a live-generation display in reception also sell the membership brand, the same way on-site renewables and customer charging now sell a dealership to its franchisor and its EV buyers. Where a club sits in a leased retail-park unit, on-site solar improves the EPC and helps the landlord meet the MEES standard expected to rise to EPC B by 2030, which protects the lettability of the space, and many landlords now want PV for exactly that reason, some funding it and recovering it through the service charge or a green-lease rent share. The dealership parallel runs deeper than it first appears: both are visible, customer-facing premises where the array does reputational work as well as financial work, both carry a growing electric-vehicle charging load, and both benefit from a fixed energy cost in a business whose income is set by demand rather than by the operator.

What a typical install looks like and how we size it

For a gym we usually design a system in the 30 to 250 kW range, which is roughly 55 to 460 panels across about 200 to 1,500 square metres of roof. A system that size generates in the region of 27,000 to 230,000 kWh a year and saves between 6 and 53 tonnes of CO2 annually. Sizing in this sector is driven by daytime baseload rather than roof area, so it comes from at least twelve months of half-hourly meter data, because a dry studio gym has a very different load curve to a wet site with a pool, spa and sauna. Where pool plant and air handling run all day, we size aggressively toward 80 to 90% of daytime demand for maximum self-consumption. Large flat or low-pitch roofs on retail-park gym units suit ballasted PV, and where roof area is tight, a solar carport over the members' car park adds capacity, exactly the surface a dealer would use over the forecourt. We assess the full range of roof types: profiled and trapezoidal metal with a clip or rail fix, standing-seam metal with a clamp fix and no penetration, single-ply membrane and built-up felt on flat units taking a ballasted system, and concrete. Older outbuildings with asbestos cement roofing cannot take panels and need a reclad first, which is why we confirm the build-up before quoting.

Costs, payback and tax relief

A gym project typically lands between £28,000 and £220,000 depending on floor area and whether the site is wet, with a simple payback near 5.5 years and the electricity effectively free for the years after that. Solar PV is a special-rate plant and machinery asset, so the 100% Annual Investment Allowance lets most operators write off the first one million pounds of qualifying spend in year one, up to a 25% effective tax saving for a limited company; solar does not qualify for full expensing, so we use the AIA or, above the cap, the 50% First-Year Allowance, with multi-club rollouts splitting across the two. The Smart Export Guarantee pays for any surplus, though a wet club self-consumes most of what it makes, so the avoided import matters more than the export income. Where capital is the constraint, a power purchase agreement provides the array with zero capex at a per-kWh rate below grid, asset finance spreads cost over 7 to 15 years and is usually cash-positive from year one, and operating leases suit estates wanting a predictable per-site monthly cost. Our cost guide works through dry and wet scenarios.

Funding routes in detail

The 100% Annual Investment Allowance is the headline route, fully expensing a single-site install within the one million pound cap, with multi-club rollouts splitting across the AIA and the 50% First-Year Allowance. Where a club adds EV charging for staff and members, the Workplace Charging Scheme, administered by the Office for Zero Emission Vehicles, pays £500 per socket and up to £20,000 per applicant from 1 April 2026, covering up to 75% of charger cost across up to 40 sockets, and it closes permanently on 31 March 2027, so apply early. Public leisure centres with pools in England, council-run or trust-operated rather than private chains, may also access the Swimming Pool Support Fund, applied for via local authorities, whose Phase II capital grants ranged from £3,000 to nearly £1m and have part-funded solar, pool covers, LED lighting and insulation; it is a useful precedent for solar at wet leisure sites, so check Sport England for current windows before relying on it. The Smart Export Guarantee covers exported units, supplier-set and typically 4 to 15p per kWh in 2026. We map and apply for the right combination for your site rather than leaving it to you.

Compliance and sector considerations

The point most specific to wet leisure is electrical zoning. Pool plant rooms and wet areas carry BS 7671 special-location requirements, so we plan the electrical works carefully around them during install. Leased retail-park units need landlord consent and a wayleave before work starts. Rooftop PV is generally permitted development under Class A Part 14 of the GPDO 2015 within size limits, excluding listed buildings and conservation areas; a solar carport needs planning permission. A G99 application is required above 17 kW per phase, and a structural survey is mandatory before loading a flat retail-park roof, which is often a ballasted membrane build-up, with the SPF1981 v3 rooftop fire-safety standard increasingly expected by insurers. A CDM 2015 plan applies on installs above 30 person-days. Larger operators can fall within ESOS Phase 4, whose compliance notification is due 5 December 2027, and on-site solar is a credible recommendation such an audit can identify. Where a public leisure centre is run by a local authority or a trust, the procurement route is more formal, and we work to it with the relevant ISO accreditations and a documented method statement. We hold MCS commercial certification for SEG eligibility, NICEIC or NAPIT, RECC, TrustMark, OZEV-approved status for charging, and the ISO 9001, 14001 and 45001 standards enterprise procurement often asks for.

How we approach this kind of project

We size from your half-hourly meter data so the system matches the real all-day load, including the constant draw of pool plant and air handling and any EV-charging growth. We design PV and chargepoints together and handle the Workplace Charging Scheme application. We assess the car park for a solar carport alongside the roof. We confirm the roof build-up and check for asbestos cement on older blocks before quoting, and we plan the electrical works around BS 7671 wet-area zoning from the start. We submit the G99 application early, alongside the structural survey, because the DNO connection is usually the longest item at six to eighteen months on a constrained network. Rooftop work rarely needs a closure: we schedule around opening hours and work in zones, with the only outage being the final grid connection of four to eight hours booked for a quiet period, and a carport build happens in the car park with minimal impact on the building. You receive a fixed-price proposal backed by an insurance-backed workmanship warranty, and after commissioning we provide annual operations and maintenance and 24/7 remote monitoring with automated underperformance alerts, so for a multi-club estate a single dashboard covers every site with live generation, lifetime kWh and CO2 saved for facilities and ESG reporting alike.

An illustrative example

As an illustrative composite, not a real named client or project: picture a privately owned health club with a 25-metre pool, gym floor, studios and spa, open long hours seven days a week, where pool heating and air handling drive the bill and ownership wants sustainability at the centre of the membership brand. Working from the meter data, a design in the region of 180 kW across the sports-hall and changing-block roofs would generate roughly 168,000 kWh a year. With all-day pool and air-handling load, self-consumption would be high, the cost would be written off in year one under the Annual Investment Allowance, a live-generation display would sit in reception as part of a powered-by-the-sun membership story, and a couple of EV chargepoints would be added under the Workplace Charging Scheme. The same exercise on a dry studio gym in a leased retail-park unit would produce a smaller array sized to lighting and ventilation, with a solar carport over the members' car park making up the difference and the landlord consent and wayleave handled as part of the project. Every figure here is illustrative and depends on your site, opening hours and tariff.

When you are ready, see our cost guide, map the schemes on the grants and funding page, request a free feasibility, or read the solar FAQs. Operators with mixed estates may also want golf and country club solar or car dealership solar.