Solar Carport UK Installation

A solar carport is an engineered steel structure built above a car park, fitted with solar PV panels on its roof. It turns previously unproductive tarmac into a high-yield commercial solar asset while providing shelter for vehicles below. In the UK, solar carports are now one of the fastest-growing categories of commercial solar — outpacing rooftop in projects over 250 kWp.

Solar carport sizing follows a simple rule: ~1.5 kWp per parking bay for a single-deck flat carport with bifacial Tier-1 panels. A 200-bay car park therefore supports ~300 kWp. At UK midlands solar yield (~850 kWh/kWp/yr), that's ~255,000 kWh/yr of generation — enough to offset roughly £110,000-£125,000 of grid electricity per year at 47p/kWh.

Solar Carport Cost UK 2026: Price per Bay, kWp and Payback

UK commercial solar carports typically cost around £950–£1,300 per kWp installed, all-in. Because a single-deck canopy generates roughly 1.5 kWp per parking bay, you can size and budget a scheme straight from your space count. The table below shows typical turnkey figures across the sizes we build most often. Figures are indicative ex-VAT bands; a fixed price follows a site survey.

Savings assume self-consumption displacing grid electricity at around 40–50p/kWh; payback shortens once the Annual Investment Allowance (100% first-year tax relief, currently up to £1m per company group) is applied. Bifacial panels can lift yield by around 5–12%, and EV-ready DC stubs added at build avoid costly retrofits later. Get a site-specific cost estimate.

Solar Carport vs Rooftop vs Ground-Mount Solar

A carport is not the cheapest way to mount panels per kWp, but it is often the best commercial choice because it monetises land you already own, shelters vehicles and integrates EV charging in one structure. Here is how the three mounting routes typically compare for a UK commercial site.

For organisations with a large surface car park and an EV transition ahead, the carport's higher £/kWp is offset by zero land cost, the bifacial bonus and a single planning and grid-connection process covering both solar and charging.

A Solar Carport Is a Commercial Energy Asset, Not Just a Canopy

Treated correctly, a solar carport is a balance-sheet asset that hedges energy cost and supports compliance:

• MEES and EPC: on-site generation reduces a building's energy intensity and can support its EPC rating under the Minimum Energy Efficiency Standards, helping protect lettable value (the government has also consulted on tightening commercial MEES thresholds later this decade).
• Scope 2 reduction: self-consumed solar directly cuts purchased-electricity (Scope 2) emissions — a measurable, auditable line in corporate reporting and net-zero plans.
• Business case: with capex of roughly £290k–£345k on a 200-bay (~300 kWp) scheme, typical savings near £112k–£125k a year and AIA giving 100% first-year tax relief, the asset typically pays back in around 4–7 years (3–4 after AIA) and then generates net positive cashflow across the remaining 20-plus year design life.

Public-sector bodies can also draw on routes such as the Public Sector Decarbonisation Scheme (PSDS), Salix loans and the OZEV Workplace Charging Scheme (currently £350 per socket, up to 40 sockets), which can remove much of the upfront cost. We deliver MCS-certified, NICEIC-approved installations and hold a 100% first-time planning approval record across 32 UK projects. Build your business case.