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Portsmouth · Hampshire
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View profileSolar installers · Portsmouth
Solar installers in Portsmouth.
Find listed solar installers covering Portsmouth, south-east Hampshire and the Isle of Wight — across 34 PO postcode districts. Some of the best sun in the country, on a densely built coast where roof space is worth checking first.
Listed installers
Covering Portsmouth & the Solent.
Featured listings are clearly marked. Solarable is a paid directory; we don't rank or endorse installers.
Check your roof
A Solarable Report shows your likely roof direction, a Solarable Score, and listed installers covering your postcode.
By the numbers
Portsmouth solar, measured.
Typical yearly generation, per kW of panels
≈1,127 kWh per kWp a year — roughly 20% above the UK average
For every kilowatt of panels, a well-placed Portsmouth roof generates about this much a year. Your own total depends on roof direction, pitch and shading — the roof check estimates it for your address.
How the sun falls across the year
Best month · June ~140 kWh
Quietest · December ~40 kWh
Apr–Sep share ~69%
Sunlight peaks in summer and dips in winter — a system is sized for the whole year, not just the peak. Estimated from PVGIS climate data for your postcode area; a roof survey confirms your exact figure.
Solar resource data: © European Union, 2025, PVGIS, EU Science Hub.
1 MCS-certified installer covers Portsmouth in our directory, and 1 also fit battery storage, 1 also install EV chargers and 1 also install heat pumps.
Sun figures from PVGIS; roof estimates include solar data from Google. How we measure.
Local context
Solar in Portsmouth: quick guide.
Portsmouth has excellent sun — it's one of the sunnier spots in the UK — but a distinctive housing challenge. Portsea Island is densely built and terrace-heavy, so roof space is tighter here than in most cities. That doesn't rule solar out; it just makes checking your roof up-front more useful, so you know what will realistically fit.
A few Portsmouth-area things worth knowing:
- Strong southern sun. The PO area is among the sunniest in the country — where you can fit panels, they perform very well.
- Dense terraces. On Portsea Island most homes have one modest roof slope, so its direction and size set the system. The roof check gives a realistic picture first.
- Coastal exposure. Seafront and harbour-side roofs need corrosion-resistant fixings and proper wind-loading checks — routine for a local firm.
- More space off the island. Fareham, Havant, Waterlooville and the mainland suburbs have larger, simpler roofs that suit a full system and battery.
- Isle of Wight. The PO area includes the Island; check that a listed installer actually crosses the Solent before assuming they cover you.
Grants & support
What help is available in Portsmouth?
Solar and battery installations across the UK are currently zero-rated for VAT until 31 March 2027 — a straight saving on the installed price for every household, with no application needed. In England, ECO4 and the Warm Homes scheme can help eligible lower-income households with energy-efficiency measures through their energy supplier or local council.
Eligibility for grant schemes depends on your income, home and circumstances, and the schemes change. We keep the current picture on one page rather than guess what you'll qualify for.
Common questions
FAQs about solar in Portsmouth.
Is Portsmouth a good place for solar panels?
Yes — the sun is among the best in the country here. Portsmouth is on the south coast and gets strong southern light. The local quirk is space: Portsea Island is one of the most densely built areas in the UK, so a lot of homes are terraces with a single, modest roof slope. That makes the roof check especially useful — it tells you which way your slope faces and roughly what will fit before an installer visits.
Do Portsmouth terraced roofs have enough space for solar?
Often enough for a worthwhile system, though smaller than a detached home would take. On a terrace you usually have one main slope, so its direction and size set the system — an east- or west-facing slope still performs well. The roof check gives you a realistic sense of the space before you commit, which matters more here than in areas with bigger roofs.
Do coastal conditions affect solar panels in Portsmouth?
They're a survey detail, not a blocker. On exposed seafront and harbour-side roofs, a good installer will use corrosion-resistant fixings and check wind loading carefully. Firms that work Portsmouth and the Solent handle this routinely.
Which areas does this cover?
This page covers the whole PO postcode area — Portsmouth and south-east Hampshire (Havant, Fareham, Gosport, Waterlooville), plus Chichester and the Isle of Wight. Listed installers usually cover a broad stretch of the area; check whether your nearest one covers your specific postcode district — and whether they cross to the Island.
Are you a solar installer covering Portsmouth?
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Useful next steps.
Is my roof suitable for solar?
Direction-led explanation, with the quick roof check.
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Solar savings calculator
Annual benefit and payback in honest UK ranges.
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Can I get solar panels?
Top-of-funnel suitability check for UK homes.
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For installers
Get a listed profile from £149/year (founding price).
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Solar companies near me
Find listed installers covering your postcode, by area.
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