How much do solar canopy installers cost?

How much does a solar carport or canopy cost in the UK?

The short answer for 2026: a commercial solar carport typically costs £900–£1,400 per kWp installed at scale, rising to £1,200–£3,000 per kWp for smaller or more complex structures — which works out at roughly £6,000–£12,000 per parking bay once you include the groundworks, the steel frame, the panels and the electrical connection. For comparison, rooftop solar runs about £700–£1,050 per kWp. A canopy costs more for one simple reason: you are buying an engineered steel structure and its foundations as well as the solar, and that structure is around 45% of the total project cost. The upside is that per-kWp pricing falls as the scheme gets bigger — the fixed cost of the steelwork spreads across more panels — so a 100-bay car park is far better value per kWp than a 10-bay one.

What a bay actually generates, and what it saves

A standard parking bay carries about 2 kWp of panels (four to six 450W modules over roughly 12 m²), and at the UK average yield of 900–950 kWh per kWp that is around 1,500–2,700 kWh per bay per year. The money comes from self-consumption: every unit you use on site displaces grid electricity at 30–47p, against a lifetime cost of self-generated solar of about 10p — so self-consumed solar is worth roughly twice what you would earn exporting it. On a site with strong daytime demand (retail, offices, clinical, industrial), 60–80% self-consumption is realistic, with the surplus sold under the Smart Export Guarantee.

Payback — and why we won't quote you five years

Be wary of anyone promising a five-year solar-only payback on a canopy. Because of the structure premium, an honest solar-only payback is 8–12 years (rooftop is 4–6). What shortens it to 7–11 years is EV charging underneath — solar at ~10p/kWh feeding chargers that would otherwise draw grid power — plus battery storage, which lifts self-consumption from ~25–40% up to ~70–85%. The decisive lever, though, is usually the funding route, not the payback: capital allowances and grants change the maths entirely (see below and our grants and funding guide).

The tax and finance angle

For a business buying outright, the biggest lever is capital allowances. Solar PV is a special-rate ("integral features") asset, so it is excluded from 100% full expensing — a common and costly misconception. What it does qualify for is the £1m Annual Investment Allowance (100% relief, the practical route for almost every single-site canopy) plus the 50% first-year allowance for companies on any balance above the cap. On-site solar is also exempt from business rates in England to 2035. Where the capital isn't available, a zero-capital Power Purchase Agreement (PPA) lets a funder build and own the canopy while you simply buy the power at a fixed rate below grid price — removing the upfront cost that kills long-payback deals. Domestic carports get 0% VAT until 31 March 2027.

The costs people forget to budget for

A canopy quote should be all-in, but it helps to know what sits inside it. Beyond the panels and steel, budget for: the foundations (ground screws on around 90% of sites, ballasted or piled where the ground demands); the DNO grid connection (a G99 application for almost all commercial schemes, typically 4–8 weeks and a fee that varies by network); a structural design to Eurocode wind and snow loading; a glare and glint study and a SuDS drainage strategy, which are the two most common Class OA prior-approval conditions; and the EV charging and any battery, if you're adding them. We roll all of this into one fixed-price, turnkey figure rather than leaving you to co-ordinate a frame supplier, an electrician and a groundworks contractor separately.

What drives the price up or down

The variables that move a quote are: scale (more bays = lower £/kWp), structure type (a column-free single-post cantilever costs more than a multi-bay continuous canopy), ground conditions (contaminated or serviced ground rules out cheap driven foundations), grid capacity (a constrained DNO connection can add cost or cap export), and finish (architectural or glass-glass BIPV canopies cost more than standard framed modules). For a real-world anchor, the government's own 2025 analysis put the electricity saving for an 80-space car park at around £28,000 a year, on a canopy costing roughly £140,000 — and a documented NHS scheme (Princess Royal Hospital, Telford) is a 200 kW canopy funded by £445,000 of Great British Energy capital, saving about £35,000 a year.

The only way to know your number is to model it against your actual half-hourly consumption. That's exactly what our free desk feasibility does — send us your details and we'll size the canopy to your load and give you a fixed-price proposal, or try the savings calculator for a quick indicative figure. The ranges by canopy type are below.