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HampshireSolar panels in Portsmouth,
priced honestly.
Independent guidance on solar and battery storage for Portsmouth homes in Hampshire: a free remote design call first, then an MCS-certified installation team for your area if you decide to go ahead. PVGIS puts a roof in Portsmouth at 1,124 kWh per kWp a year, 8% above our Hampshire county estimate.
Start with your postcode
Free, no obligation. Takes about two minutes, and nobody visits your home.
What a roof in Portsmouth can generate
Real satellite data for Portsmouth, real installed pricing, and the same honest model we run for every place we cover.
How Portsmouth compares
Portsmouth is classed as a city in the House of Commons Library settlement data, home to 230,389 people. It is one of 45 Hampshire towns we track, and it ranks joint 12th of 45 for solar yield. Its 1,124 kWh per kWp a year works out at 3.08 peak sun hours a day, and running the standard 12 panel model here splits the return into £247 of savings from generation you use yourself and £745 of export income at 12p, with about 6,212 kWh a year going to the grid.
Treat these as calibration rather than a quote. The calculator below runs the same model, defaulted to Portsmouth's own yield, and at Portsmouth's 1,124 kWh per kWp it prices a 12 panel system at £6,360 installed before any battery. Your free design call reworks every number for your actual roof, its shading and your usage.
Planning applications here go through Portsmouth; nationally, the House of Commons Library classes Portsmouth as a city.
The charger is in the installed price but left out of payback: charging savings depend on your mileage and tariff, which the design call models properly.
Price this properly, free →Your real roof, your real usage, on a free video call. No obligation.
A 12 panel, 6.36 kWp system in Portsmouth generates around 7,149 kWh a year, worth around £992 in year one on the 12p export scenario.
Generation is modelled from PVGIS satellite data for Portsmouth's own coordinates (50.82092, -1.07782), using the same 26.32p/kWh import value and £1,000 per kWp installed pricing as every Clearline estimate, with the full methodology, sourcing and assumptions set out on our help page.
Solar panel servicing and repair in Portsmouth
If a system in Portsmouth is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Common questions about solar in Portsmouth
What could a roof in Portsmouth generate?
PVGIS puts a roof in Portsmouth at 1,124 kWh per kWp a year, 3.08 peak sun hours a day averaged across the seasons.
What does a typical solar system cost in Portsmouth?
A typical 12 panel, 6.36 kWp system in Portsmouth costs around £6,360 installed, at £1,000 per kWp before any battery.
Would a system in Portsmouth need a G99 application?
Most home solar and battery systems qualify for the simpler G98 notification, made to the network operator (DNO) after installation rather than before. A minority, usually larger systems, need the fuller G99 process instead. Your design call checks which applies in Portsmouth before anything is booked; our G98 vs G99 guide explains the difference in full.
What could I earn from exporting in Portsmouth?
On the 12p export scenario, that 12 panel system sends about 6,212 kWh a year to the grid, worth around £745. The tariff guide compares the export rates that could apply to your setup.
Get your free quote
Takes about two minutes. We work out your options, then confirm your free remote design call, on video, at a time that suits you. It starts with your roof and your numbers, and the design is built around them rather than around a product someone needs to shift.
Reading for Portsmouth homeowners
Independent, sourced and dated. The same ground we cover on your free call.
Solar panel types, and the four numbers that actually matter
TOPCon, HJT and back contact decoded, plus the four numbers worth comparing.
Read the guide →Adding a battery to solar panels you already own
Retrofitting a battery to working solar is straightforward. The paperwork is where people trip up.
Read the guide →How time of use charging windows actually work
How a cheap overnight window is metered and billed, and what a battery does inside it.
Read the guide →What MCS certification actually buys you on a heat pump job
The gate on the £7,500 grant, the design standard behind your running costs, and the noise sign-off.
Read the guide →Why tariff choice moves payback more than kit choice
Identical kit, five times the export income. The tariff decision worked through with August 2026 rates.
Read the guide →G98 or G99: which one applies, what the application involves, and how long it takes
The G98 line sits at 3.68kW per phase. Above it, your network operator has to say yes first.
Read the guide →How Portsmouth compares with its neighbours
Same satellite dataset, same assumptions, so the differences are real geography rather than modelling noise.
| Town | kWh per kWp | Peak sun hours | vs Portsmouth |
|---|---|---|---|
| Portsmouth | 1,124 | 3.08 | — |
| Gosport | 1,116 | 3.06 | -8 kWh |
| Waterlooville | 1,125 | 3.08 | +1 kWh |
| Havant | 1,133 | 3.10 | +9 kWh |
| South Hayling | 1,127 | 3.09 | +3 kWh |
| Fareham | 1,117 | 3.06 | -7 kWh |
| Lee-on-the-Solent | 1,104 | 3.02 | -20 kWh |
PVGIS v5.2 for each town centroid, identical assumptions throughout. A few kWh either way is weather-year noise; a spread beyond about 30 kWh per kWp is real geography.
Also for Portsmouth: Solar panels in Portsmouth from OVO Solar & Battery