Worked Project Models

Solar canopy worked examples: modelled scenarios, not completed projects

Worked examples for car-park canopies — modelled UK scenarios with cost, generation, savings and payback numbers built from the published figures on this site. They are not completed projects.

520 kWp
Largest system modelled
3.2–8.5 yrs
Modelled payback range
Modelled
Scenarios, not client projects
90%
Highest assumed on-site share

These modelled scenarios show what a car-park canopy looks like on paper: the system size a given car park supports, the capital cost, the annual generation, the £-saving at current commercial tariffs, and the payback with the Annual Investment Allowance applied. Each is an illustrative UK scenario built from the cost, yield and tax figures published on this site; none is a completed project, so use them to benchmark rather than to quote.

Use them alongside the solar canopy cost guide to benchmark your own car park, or see how the structures behind these numbers work in the solar panel canopy guide and car park solar canopies guide.

industrial North of England (modelled)

Modelled scenario: 520 kWp canopy over a industrial-estate car park

System size
520 kWp
Annual saving
£85,500
Payback period
7 years
Annual generation
420,000 kWh
healthcare South East England (modelled)

Modelled scenario: 350 kWp canopy over a hospital staff car park

System size
350 kWp
Annual saving
£73,500
Payback period
5.5 years
Annual generation
322,000 kWh
offices Midlands (modelled)

Modelled scenario: 280 kWp canopy over a office-campus car park

System size
280 kWp
Annual saving
£53,000
Payback period
6.1 years
Annual generation
245,000 kWh
logistics Midlands (modelled)

Modelled scenario: 450 kWp canopy over a distribution-centre car park

System size
450 kWp
Annual saving
£90,000
Payback period
5.8 years
Annual generation
394,000 kWh

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Enter the number of parking spaces and your postcode and the page works out an indicative system size, capital cost range, annual generation and payback from the figures published on this site. It is an estimate, not a quote. Add your email afterwards if you want us to look at it with you; we reply by email.

Enter your spaces and postcode to see an indicative size, cost range, generation and payback.

Indicative only, not a quote. Assumes 1.7 kWp per space (see how the capacity is derived), £900–£1,400 per kWp installed (see the cost guide; the one published UK government illustration implies about £1,000 per kWp), PVGIS 5.3 yield for the nearest reference city, 24p/kWh for power used on site and 12p/kWh for export, and Annual Investment Allowance relief at the 25% main rate for a profitable company. Ground conditions, the grid connection, planning and EV charging are not included.

Why we ask: postcode sets the yield, spaces set the size, and timing tells us how to prioritise a reply.

How this works: this is an independent information site, not an installer. Your enquiry comes to us and we reply by email. We do not run a lead auction, pass your details to installers or add you to a marketing list.

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