Solar Car Parks: Turn Tarmac Into a Revenue Asset
A commercial solar car park installation combines shelter, generation and EV charging in a single canopy structure — slashing energy bills, futureproofing your fleet, and turning under-used tarmac into a 25-year income stream.
What you can expect
From 50-bay Car Parks to 5,000+ Space Estates
Four solar car park build types, each with a different commercial use-case. Each page covers what the structure has to do, the planning route, the DNO connection and the funding position — so you can brief an MCS-certified installer rather than be sold to by one.
Solar Carports
Solar carports for UK commercial car parks — how the steel frame is loaded and fabricated, the Class OA planning route, the G99 connection and what to specify, for 50 to 5,000+ spaces.
Learn moreSolar Canopies
Architectural solar canopy solutions that combine shelter, shade and clean energy generation. Cantilever, hip and butterfly designs for any site.
Learn moreCar Park Solar Panels
Car park solar panels sized at about 1.5 kWp per bay, with 10-degree canopy yields from 772 to 946 kWh/kWp across the UK, the G99 route and the 2026 tax position.
Learn moreEV Charging Canopies
Integrated solar canopy plus rapid EV charging — single-source design, OZEV WCS grant eligible, dynamic load balancing built in.
Learn moreStart with the question you actually have
Solar car parks are one idea with six separate decisions behind them, and the answer you need depends on which one you are stuck on. Each page below is the full treatment of one of them.
The structure
What the frame has to do, how it is fabricated and loaded, and why a commercial canopy and a retail carport kit are different products. Start with solar carports.
Sizing and generation
About 1.5 kWp per parking bay, and a 10-degree canopy yield that runs from 772 kWh/kWp in Glasgow to 946 in Cardiff. The arithmetic sits on car park solar panels.
Charging
Where the sockets go, what the OZEV Workplace Charging Scheme pays per socket, and why the canopy and the chargers are separate cost lines. See EV charging canopies.
The numbers
Current UK pricing per kWp, what moves a quote, and payback on the saving alone. See solar carport cost.
Tax relief
Solar is special-rate plant: no full expensing, but the Annual Investment Allowance gives 100% in year one up to £1m. See capital allowances on a solar carport.
Holding cost
On-site renewables plant is out of rateable value in England to 2035, so the canopy does not raise the rates bill on the site it serves. See business rates on a solar carport.
Two things are true of every UK scheme regardless of which question brought you here. The connection is a G99 application, because G98 stops at 16 A per phase — about 3.68 kW per phase — and every car park array is far past that; and in England the planning route is prior approval under Class OA, with a 4 metre height limit and 56 days for the authority to determine. Wales has no equivalent right, so a Welsh canopy is a full application every time.
One Structure. Six Revenue and Risk Wins.
Solar carports are the rarest of commercial decarbonisation projects: they deliver real returns and almost-zero downside. Here's why finance directors say yes.
Net energy saving £125k-£385k/yr
A 300 kWp carport over a 200-bay car park typically generates ~270,000 kWh/yr — enough to offset around £125,000 of your commercial electricity bill at current 47p/kWh tariffs.
4-7 year payback (3-4 after AIA)
Annual Investment Allowance lets you write off the entire capex against corporation tax in year one. After-tax payback for a £290k system is closer to 3.2 years.
25-year Tier-1 panel warranty
Tier-1 panels from Trina, Longi, JA Solar and JinkoSolar carry 25-year linear performance warranties. Inverters typically warrantied 10 years, extendable to 25.
EV-ready by design
Every carport built with DC stubs at column bases. Add 7 kW, 22 kW, or 50 kW chargers at any time. OZEV Workplace Charging Scheme covers £500/socket up to 40 sockets.
Real ESG and Scope 2 evidence
Each MWh on-site solar self-consumed cuts ~0.21 tCO₂e from your Scope 2 inventory. A 300 kWp carport offsets ~80-100 tCO₂e/yr — material evidence for CSRD, SECR and B Corp reporting.
A genuine staff and customer perk
Sheltered cars stay 8-12°C cooler in summer, dry in winter. Add EV charging and the bays become the most-used in your car park. Several clients now report higher staff retention.
From Site Visit to Switch-On in 16-28 Weeks
The four phases of a typical commercial solar carport project.
Feasibility
Free site visit, structural and irradiance modelling, indicative system size and ROI within 5 working days.
Design & Planning
Concept to detailed design, planning application, DNO G99 connection, building regulations sign-off (4-12 weeks).
Build
Foundations, steel frame, panel install, DC and AC wiring, EV charger commissioning (6-10 weeks).
Switch-on & O&M
Commissioning, an energy meter and a monitoring portal, then MCS handover documentation. An O&M contract is usually offered on a 25-year term.
Engineered for Your Industry
Sector-specific compliance, grant routes, and structural designs — from supermarket forecourts to hospital staff car parks.
Retail & Supermarket Car Parks
Cover customer car parks, slash store energy bills, and offer free EV charging as a footfall driver.
Typical: 120-2,500 spaces · 200-3,000 kWp · £185,000/yr
Business Parks & Office Estates
Shared-tenant business parks turning under-utilised tarmac into a Scope 2 emissions reduction and an estate-wide amenity.
Typical: 150-3,000 spaces · 250-3,500 kWp · £245,000/yr
Schools, Colleges & Universities
DfE Condition Improvement Fund, OZEV charging grants and capital allowances — solar carports for staff and student car parks.
Typical: 80-1,500 spaces · 120-2,000 kWp · £135,000/yr
Healthcare & NHS Estates
NHS Greener Plan-aligned solar carports for hospital and clinic car parks. Capital and PPA routes, sheltered staff and patient parking.
Typical: 150-2,500 spaces · 250-3,000 kWp · £285,000/yr
Councils & Public Sector
Solar carports for council car parks, leisure centres and civic buildings — capital, PPA and framework procurement routes.
Typical: 100-2,000 spaces · 150-2,500 kWp · £175,000/yr
Logistics & Distribution Centres
Large-fleet logistics sites adding solar carports above HGV and staff parking — combining canopy, generation and depot EV charging.
Typical: 200-3,500 spaces · 350-4,500 kWp · £385,000/yr
Hotels, Leisure & Hospitality
Guest car parks providing sheltered EV charging, B Corp evidence, and material reductions on year-round HVAC and laundry loads.
Typical: 80-800 spaces · 120-1,400 kWp · £115,000/yr
Manufacturing & Industrial Estates
Industrial estate operators and manufacturers extending rooftop solar with carport arrays for further capacity over staff and visitor parking.
Typical: 100-2,000 spaces · 200-3,000 kWp · £245,000/yr
Solar Carport Installations Across the UK
The guidance on this site applies to projects anywhere in England, Wales, Scotland and Northern Ireland.
London · Birmingham · Manchester · Leeds · Glasgow · Liverpool · Sheffield · Bristol · Newcastle upon Tyne · Nottingham · Leicester · Coventry · Edinburgh · Cardiff · Belfast · Southampton · Portsmouth · Brighton & Hove · Reading · Milton Keynes · Oxford · Cambridge · Norwich · Plymouth
What a Commercial Solar Carport Looks Like
Modelled examples built from typical UK costs (around £950–£1,300 per kWp installed, roughly 1.5 kWp per parking bay). They are not completed projects.
Secondary school or small business park
Indicative turnkey cost around £85,500–£117,000. Savings depend on how much generation is used on site during the working day.
See the cost breakdownHospital staff car park or large campus
Indicative turnkey cost around £171,000–£234,000. EV-ready DC stubs are cheapest to fit at build.
EV-ready canopiesSupermarket or retail park
Indicative turnkey cost around £290,000–£390,000, with simple payback typically around 4–7 years.
Model your paybackWhat a UK Solar Carport Actually Costs
Budget bands by system size, sourced from published UK pricing. Each band covers design, planning, MCS-certified installation and commissioning, and excludes EV charger hardware (typically £1,200-£3,200 per socket).
| System size | Approx. spaces | Turnkey capex | Annual saving | Simple payback | After-AIA payback |
|---|---|---|---|---|---|
| 75 kWp | ~50 | £95k-£115k | £32k-£38k | ~3.0 yr | ~2.2 yr |
| 150 kWp | ~100 | £165k-£195k | £68k-£75k | ~2.5 yr | ~1.9 yr |
| 300 kWp | ~200 | £290k-£345k | £125k-£140k | ~2.5 yr | ~1.9 yr |
| 500 kWp | ~330 | £465k-£545k | £195k-£225k | ~2.4 yr | ~1.8 yr |
| 750 kWp | ~500 | £660k-£775k | £280k-£325k | ~2.4 yr | ~1.8 yr |
| 1,000 kWp | ~670 | £860k-£1.02m | £375k-£430k | ~2.3 yr | ~1.7 yr |
| 1,500 kWp | ~1,000 | £1.27m-£1.5m | £560k-£640k | ~2.3 yr | ~1.7 yr |
Estimates assume 875 kWh/kWp annual yield (Birmingham at a 10° canopy pitch, PVGIS v5.3), 75% self-consumption at 47p/kWh, 25% export at 7p/kWh SEG.
Solar Car Park Questions, Answered
The eight questions we hear most often from finance directors, sustainability heads, and estate managers.
How much does a solar car park installation cost in the UK?
Do you need planning permission for a solar carport?
How many parking spaces do I need for a solar carport to make sense?
Can a solar carport be combined with EV charging?
What grants are available for solar carports in the UK?
How long does a solar carport project take from sign-off to switch-on?
Do solar carports work in cloudy UK weather?
Who owns the carport — you, or the site owner?
Ready to Talk Solar Carports?
Send the basics — site location, approximate parking bays, and what you're trying to achieve. We'll come back inside 24 working hours with indicative system size, capex range, and a feasibility-study booking slot.
Further reading: Solar carports work best as part of an integrated energy strategy alongside EV charging and storage, so sites planning multiple measures should brief commercial solar installers to coordinate canopy, charge points and grid connection under one contract.
For the engineering detail on car park solar canopy systems — panels-per-bay, structural specs and cost by car-park size — see the dedicated commercial canopy resource.
Canopy systems often export heavily at weekends, so the commercial SEG rates on offer matter to the business case.
For domestic and small-commercial sites in Yorkshire, EV charger installation from an NICEIC-approved installer is the practical first step.