Residential Solar Carports & Solar Pergolas: Solar canopy installers

Solar carports & pergolas for the home: generate power when the roof can't

A residential solar carport is the answer to a problem that stops thousands of UK homeowners going solar: the roof simply won't take it. Maybe it faces north, sits under a mature tree's shade, is a listed slate roof you can't touch, or is already full of panels and you want more. A carport sidesteps all of that. It puts a low-tilt array on a purpose-built steel structure over your driveway or garden, generating on ground that earns nothing today while sheltering the car — and, increasingly, charging it. A solar pergola is the same idea scaled to the garden: a shaded seating structure that happens to produce electricity. Both are the domestic end of the canopy world, and both behave differently from a roof retrofit on cost, planning and payback. This page is honest about all three.

Why this canopy type earns its place

The load a home carport is designed around is different from a supermarket's. A commercial car park is chasing self-consumption across a big daytime demand and monetising the surplus. A home carport has a smaller, spikier load: the fridge and standby draw during the day, then a hard evening peak when everyone's home, the oven's on and — the real driver here — the EV is plugged in. That last point is what makes a domestic carport add up. A 7kW home charger pulling from your own array at roughly 10p per kWh, instead of grid electricity at 30–47p, is where the economics turn from "nice to have" into "sensible". Charging the car under the structure that generates its fuel is the whole pitch, and it's why we treat integrated EV charging and, usually, a home battery as core to the design rather than an afterthought. The battery matters because your generation peaks at midday and your demand peaks at 6pm — storage bridges that gap so the solar you make actually offsets the grid you'd otherwise buy at the worst time of day.

The other genuine wins: weather protection for the vehicle, and Smart Export Guarantee (SEG) income on whatever you can't use yourself. A licensed supplier pays for the surplus you export — rates are supplier-set and run anywhere from about 1p to 15p per kWh — but you only qualify with an MCS-certified installation and a smart meter recording half-hourly export. That MCS requirement is not optional, and it's one reason a proper turnkey install matters more than a cheap frame.

Sizing a home carport

Canopies size from the footprint on the ground, not from a roof. A single-car carport is a modest structure; a double covering a two-car driveway is where most of our domestic work sits. In canopy terms a standard parking bay carries roughly 2 kWp of panels — four to six 450W modules over about 12 square metres — so a one-to-two-car domestic structure typically lands in the 3–10 kW range using somewhere between 7 and 24 panels. At the UK yield of about 900–950 kWh per installed kWp (a little less in northern Scotland, up to ~1,050 on the south coast), that translates to roughly 2,800–9,500 kWh a year of generation and around 1–2 tonnes of CO₂ saved annually. Panels sit at a low 5–15° tilt to manage wind uplift, which trades a fraction of yield for structural sense; bifacial modules can claw back around 5–12% from light reflected off a pale driveway. If your roof already has solar and you're adding a carport for EV charging, we size the two together so you're not over-exporting cheaply while importing at peak.

A worked cost and payback example

Domestic carports and pergolas are smaller and more bespoke than a 100-bay car park, so they land at the pricier end of the per-kWp scale — £1,200–£3,000 per kWp for smaller, more complex structures, against £900–£1,400 for commercial-scale schemes and £700–£1,050 for a straightforward rooftop retrofit. The reason is structural: the steel columns, beams and foundations are roughly 45% of the total cost and don't shrink much between one bay and two, so a small carport can't spread that fixed cost the way a big car park does. That's why a typical residential carport or pergola project sits at £10,000–£25,000+.

Take a realistic middle case — illustrative figures, not a quote. Say a 6 kW double carport at around £16,000 all-in, generating about 5,500 kWh a year. If you self-consume around 55% of that (helped by a battery and daytime EV charging) at an avoided grid price of ~35p per kWh, that's roughly £1,060 of electricity you don't buy. Export the remaining ~2,475 kWh at, say, 10p under a good SEG tariff and that's another ~£248. Add the EV-charging saving — every mile you'd have paid grid rates for, now covered by ~10p solar — and the annual benefit climbs further. On the electricity and export alone the payback lands around the 10-year mark, which matches the typical figure for this sub-vertical; the EV-charging layer is what pulls the real-world figure in. Be clear-eyed about this: a solar-only home carport is an 8–12 year payback, not the 4–6 years you'd see from a simple rooftop retrofit. We will never sell you a five-year solar-only payback on a carport, because it isn't true. The honest comparison is against 25 years of rising grid prices — and against the fact that for many of these homes, the roof was never a runner in the first place.

You can size the exact numbers for your driveway on our cost breakdown, and if you'd like us to model it against your actual usage and tariff, request a free quote.

Planning and compliance for a home carport

Here's the part homeowners most often get wrong, in both directions. A domestic carport is usually permitted development as an outbuilding — no planning application needed — provided it stays within the householder limits: a maximum height of 4m (dropping to 3m if it's within 2m of a boundary), sited to the rear or side behind the principal elevation of the house, and covering less than 50% of the curtilage when you add up all your outbuildings. Stay inside that envelope and you can generally proceed. But those permitted-development rights are curtailed or lost on listed buildings, in conservation areas and in National Parks, where a formal application is often required — and a listed or shaded roof is exactly the situation that sends people to a carport in the first place, so this catches more of our customers than you'd expect. We check your specific case before designing anything.

Two important clarifications. First, the newer Class OA permitted-development right — the one that came into force on 21 December 2023 and lets you avoid full planning via a prior-approval application on siting, design and glare — applies to non-domestic off-street parking only. It does not cover your driveway. Domestic carports run under the householder outbuilding rules above, not Class OA. Second, on structure: even a home carport is engineered to Eurocode 1 (BS EN 1991) wind and snow loading, founded on ground screws on the great majority of sites, and wired to BS 7671. This is a permanent structure carrying a live electrical system over your car, not a garden gazebo — it's built and certified accordingly.

The funding and tax angle for homeowners

The headline relief is 0% VAT on domestic solar, in place across Great Britain until 31 March 2027 (after which it reverts to 5%). On a solar carport there's one honest caveat we won't gloss over: HMRC has not explicitly confirmed whether the zero rate extends to a standalone canopy in the curtilage as opposed to panels fixed to the dwelling itself. It may well apply — but we advise checking your specific case with an accountant or HMRC rather than assuming, and we'll flag it in writing. Our grants and funding guide covers the current position and the SEG export mechanism in more detail. On the grid side, most domestic carports connect under G98 fit-and-inform (up to 3.68kW per phase); anything larger needs G99 pre-approval from your DNO, typically a few weeks, which we handle for you. And remember: no MCS certificate, no SEG income — so the certification isn't paperwork for its own sake, it's what unlocks the export payments.

A realistic scenario

Illustrative example — not a specific customer. Picture a 1930s semi with a north-east-facing main roof and a mature oak shading the south side — the roof was quoted for solar twice and both installers walked away. The owners have just gone electric and are paying to charge on a standard variable tariff. We design a 6.5 kW double carport across the existing driveway, ground-screw founded, with a 5 kWh battery and a 7kW smart charger that prioritises the car whenever the sun's producing surplus. It stays inside householder permitted development — under 4m, behind the principal elevation, well under half the curtilage — so no planning application. Generation lands around 6,000 kWh a year. The car now runs largely on ~10p solar instead of 30p+ grid, the battery shifts midday generation into the evening peak, and the surplus earns SEG income across the summer. The roof, which was never going to work, is no longer the problem it was.

Frequently asked questions

Do I need planning permission for a solar carport on my driveway?

Usually not. A domestic carport is normally permitted development as an outbuilding — up to 4m high (3m within 2m of a boundary), sited behind the principal elevation of the house, and covering less than half your curtilage alongside any other outbuildings. The big exceptions are listed buildings, conservation areas and National Parks, where a formal application is often needed. Note that the Class OA prior-approval route you may have read about is for non-domestic (commercial) parking only and does not apply to a home driveway. We confirm your position before we design.

Is a carport worth it if I could just put panels on the roof?

If your roof genuinely works — decent orientation, no shading, not listed, structurally fine — the roof is cheaper and pays back faster (4–6 years versus 8–12 for a carport), so we'd tell you to use it. A carport earns its keep precisely when the roof doesn't: north-facing, shaded, listed, or already full. It also does two things a roof can't — shelter the car and carry the EV charging you'll want anyway — and it generates on driveway space that returns nothing today. For a bigger structure over more parking, see our solar carports for car parks page.

Can the carport charge my electric car directly from the sun?

Yes — home charging is the ideal match. A 7kW (and up to 22kW) AC charger pairs perfectly with a carport, and a smart charger will prioritise free solar whenever the array is producing surplus, topping up from the grid only when it has to. Where we're careful to be honest: a domestic carport cannot power a standalone 50kW+ DC rapid charger — those draw far more than any home canopy can supply and need a grid connection plus a battery. For everyday overnight and daytime home charging, though, the carport-plus-battery combination is exactly right, and it's where the strongest part of the return comes from.

We're a turnkey, MCS-certified installer — structure, PV, electrical work and DNO connection under one contract, not a bare frame left for someone else to finish. Accreditations include MCS, NICEIC, RECC and TrustMark, backed by an IWA workmanship warranty. To talk through whether a carport or pergola suits your home, call +44 7707 970661 or request a free, no-obligation quote.