Solar panels in Lee-on-the-Solent, sized to your roof.
About 7,020 kWh a year from 12 panels in Lee-on-the-Solent, £6,360 installed, with your system designed on a free 30-minute video call.
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Lee-on-the-Solent's solar year
Lee-on-the-Solent's best month is July, at 137.4 kWh per kWp; December manages 38.3. Over the year that comes to 1,104 kWh per kWp, 6% above our Hampshire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 41.6 |
| February | 57.8 |
| March | 97 |
| April | 126 |
| May | 132 |
| June | 136 |
| July | 137 |
| August | 119 |
| September | 102 |
| October | 68.8 |
| November | 48.6 |
| December | 38.3 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
Our GB average is 925 kWh per kWp a year, the mean of the 85 county PVGIS estimates we publish; at 1,104, Lee-on-the-Solent is 19% above it.
How Lee-on-the-Solent compares
Small towns rarely get published solar figures, so here are the numbers for Lee-on-the-Solent. It is one of 45 Hampshire towns we track, and it ranks 23rd of 45 for solar yield, a town of 24,332 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,104 kWh per kWp a year, 3.02 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £977 of year one benefit, £247 of it from your own generation and £730 from export at 12p.
Every figure here assumes a clear, south-facing roof at 35 degrees. Yours will differ, which is what the free design call is for; until then, the calculator below tests panels, batteries and export rates on Lee-on-the-Solent's own yield.
Fareham is the planning authority covering Lee-on-the-Solent, which the House of Commons Library classes as a small town.
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.
Your real roof and usage, worked through on a free 30-minute video call. Use the full form or leave three details below.
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Three details. We call or text within one working day to book your free 30-minute design call, on video or by phone if you prefer.
The figures use PVGIS for the centre of Lee-on-the-Solent (50.8156, -1.20926), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
Who runs the grid in Lee-on-the-Solent
The distribution network operator (DNO) for Lee-on-the-Solent is Scottish and Southern Electricity Networks (SSEN), which runs the Southern England licence area.
G98 is the simple route. If the inverter, plus any battery, stays at or under 3.68kW per phase, SSEN only has to be told within 28 days after the system is commissioned.
A bigger inverter or battery output needs a G99 application in advance. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW.
Sources: NESO DNO licence areas (3 May 2024); SSEN, micro-generation connections page, checked 25 September 2026. G98 vs G99, explained.

Beyond the panels: heating and car charging in Lee-on-the-Solent
A heat pump in Lee-on-the-Solent
A heat pump does most of its work from November to February. Over those four months, 12 panels in Lee-on-the-Solent make about 1,180 kWh, against 3,330 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more than the roof.
The Boiler Upgrade Scheme, open in England and Wales, takes £7,500 off an air source or ground source heat pump, or £2,500 off an air-to-air unit. Homes on oil or LPG with no mains gas get £1,500 more until March 2027 (gov.uk, checked 28 September 2026).
Charging an EV in Lee-on-the-Solent
A 12-panel roof in Lee-on-the-Solent makes about 870 kWh in July. A typical home uses around 70 kWh of that in daylight (the calculator's typical-use settings), which leaves most of the month's output for an EV or for export.
The calculator above includes a 7.4kW smart charger from £1,100 installed. Renters and flat owners with off-street parking can claim 75% of a chargepoint's cost, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026).
The packages, priced before anyone visits
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Lee-on-the-Solent
Faults, servicing and ageing inverters follow the same economics in Lee-on-the-Solent as anywhere else, and the guides below price them plainly.
Solar in Lee-on-the-Solent: your questions answered
What does a solar panel system produce in Lee-on-the-Solent?
Each kWp of panels in Lee-on-the-Solent makes 1,104 kWh a year on PVGIS figures, so a typical 12-panel system produces around 7,020 kWh, from about 240 kWh in December up to 870 kWh in July.
What would 12 solar panels cost in Lee-on-the-Solent?
£6,360 for 12 panels (6.36 kWp), the same as in every other place we cover, because solar is priced at £1,000 per kWp installed rather than by area. A battery adds its own installed price on top. Where Lee-on-the-Solent differs is output: about 7,020 kWh a year from that system.
Would a system in Lee-on-the-Solent need approval from the network operator?
Lee-on-the-Solent is on Scottish and Southern Electricity Networks' network (Southern England licence area). Systems up to 3.68kW per phase of inverter output follow G98: SSEN is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW. Our G98 vs G99 guide explains both routes.
How much would export pay on a system in Lee-on-the-Solent?
It is exported. With typical use and no battery, about 6,085 kWh of the 7,020 kWh a 12-panel system makes in Lee-on-the-Solent goes to the grid, around £730 a year at 12p. A battery keeps more of it for the evening; the export rates table shows what suppliers pay.
Is solar worth it in Lee-on-the-Solent in winter?
It works, but the year is lopsided. 68% of a Lee-on-the-Solent roof's output lands between April and September; the four months from November to February give about 1,180 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Lee-on-the-Solent compares with its neighbours
How the towns nearest Lee-on-the-Solent compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Lee-on-the-Solent |
|---|---|---|
| Lee-on-the-Solent | 1,104 | this town |
| Gosport | 1,116 | +12 kWh |
| Fareham | 1,117 | +13 kWh |
| Locks Heath | 1,090 | −14 kWh |
| Whiteley | 1,090 | −14 kWh |
| East Cowes | 1,112 | +8 kWh |
| Portsmouth | 1,124 | +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 Lee-on-the-Solent: Solar panels in Lee-on-the-Solent from OVO Solar & Battery
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Reading for Lee-on-the-Solent homeowners
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Read the guide →Get my free quote
Takes about two minutes. We call or text within one working day to book your free 30-minute video design call at a time that suits you. We design it around your roof and your numbers, and our MCS-certified, fully insured installation teams install it.