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HampshireSolar panels in Southampton,
priced honestly.
Independent guidance on solar and battery storage for Southampton 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 Southampton at 1,080 kWh per kWp a year, 4% above our Hampshire county estimate.
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What a roof in Southampton can generate
Real satellite data for Southampton, real installed pricing, and the same honest model we run for every place we cover.
How Southampton compares
Southampton is classed as a city in the House of Commons Library settlement data, home to 260,184 people. It is one of 45 Hampshire towns we track, and it ranks 29th of 45 for solar yield. Its 1,080 kWh per kWp a year works out at 2.96 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 £712 of export income at 12p, with about 5,932 kWh a year going to the grid.
Treat these as calibration rather than a quote. The calculator below runs the same model, defaulted to Southampton's own yield, and at Southampton's 1,080 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.
Southampton is the planning authority covering Southampton, which the House of Commons Library classes 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 Southampton generates around 6,869 kWh a year, worth around £958 in year one on the 12p export scenario.
Generation is modelled from PVGIS satellite data for Southampton's own coordinates (50.91949, -1.39748), 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.
Local detail for Southampton
Southampton's Local Plan describes the city's housing as typically higher density and smaller than in many other areas, with a higher than average share of private rented homes, terraces and properties built before 1919. Much of the city centre was rebuilt in the mid-twentieth century after wartime bomb damage, so a Southampton roof is as likely to sit on a rebuilt mid-century terrace as on a pre-1919 original, and the two can behave quite differently for shading and pitch.
Southampton sits in SSEN territory, on its Southern Electric Power Distribution licence. SSEN's own G99 Fast Track aims to reply within 10 working days for eligible small-scale schemes, well inside the 45 working day industry standard, and most single home systems use the quicker 28-day G98 route instead. Southampton City Council is the planning authority; seven conservation areas, including The Avenue and Carlton Crescent, carry an Article 4 direction removing permitted development rights for roof-mounted solar, so the rest of the city keeps those rights as normal.
The council declared a climate emergency in 2019 and its Climate Change Strategy targets net zero for the whole city by 2035, with the council's own buildings and fleet reaching net zero by 2030. SSEN is separately investing £155 million in Southampton's electricity network between July 2025 and summer 2031, including a new Bulk Supply Point that will raise local capacity by around 180MVA to support more solar, heat pumps and electric vehicles.
Network operator (DNO): SSEN (Scottish and Southern Electricity Networks) · G99 application
Planning authority: Southampton City Council
Solar panel servicing and repair in Southampton
Faults, servicing and ageing inverters follow the same economics in Southampton as anywhere else, and the guides below price them plainly.
Common questions about solar in Southampton
What could a roof in Southampton generate?
PVGIS puts a roof in Southampton at 1,080 kWh per kWp a year, 2.96 peak sun hours a day averaged across the seasons.
What does a typical solar system cost in Southampton?
A typical 12 panel, 6.36 kWp system in Southampton costs around £6,360 installed, at £1,000 per kWp before any battery.
Would a system in Southampton 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 Southampton before anything is booked; our G98 vs G99 guide explains the difference in full.
What could I earn from exporting in Southampton?
On the 12p export scenario, that 12 panel system sends about 5,932 kWh a year to the grid, worth around £712. 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 Southampton homeowners
Independent, sourced and dated. The same ground we cover on your free call.
Best solar panels UK 2026: what the datasheets actually say
One pick per job, the specs behind each, and what moves payback more than the badge.
Read the guide →Which battery size band does your home fall into?
Where UK homes actually land, why oversizing costs you, and what shifts the band.
Read the guide →Home EV charger types and speeds, explained properly
Granny cable, 7kW wall unit or 22kW three phase. What each adds per hour, and which you need.
Read the guide →Are air source heat pumps any good? What owners actually report
The UK's largest survey found 80% of heat pump owners satisfied, against 70% for gas boilers.
Read the guide →Why the best export rates always carry conditions
The top export rates are acquisition offers. Here is how to price the condition.
Read the guide →Your MCS certificate: what it shows, when it arrives, and how a Smart Export Guarantee supplier uses it
The document your export payments hang on. Who issues it, what it shows, and how to get a copy.
Read the guide →How Southampton 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 Southampton |
|---|---|---|---|
| Southampton | 1,080 | 2.96 | — |
| West End (Eastleigh) | 1,085 | 2.97 | +5 kWh |
| Hythe and Dibden Purlieu | 1,107 | 3.03 | +27 kWh |
| Hedge End | 1,084 | 2.97 | +4 kWh |
| Bursledon | 1,092 | 2.99 | +12 kWh |
| Eastleigh | 1,070 | 2.93 | -10 kWh |
| Totton | 1,073 | 2.94 | -7 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 Southampton: Solar panels in Southampton from OVO Solar & Battery