Hampshire
Solar panels in Alton, sized to your roof.
About 6,630 kWh a year from 12 panels in Alton, £6,360 installed, with your system designed on a free 30-minute video call.
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- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
Alton's solar year
From 36.2 kWh per kWp in December to 126.5 in July: a roof in Alton makes 3.5 times as much in its best month as in its darkest, and 1,043 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40.7 |
| February | 53.7 |
| March | 91.6 |
| April | 117 |
| May | 125 |
| June | 126 |
| July | 127 |
| August | 114 |
| September | 98.1 |
| October | 67.8 |
| November | 46 |
| December | 36.2 |
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 1,043, Alton is 13% above it.
How Alton compares
Small towns rarely get published solar figures, so here are the numbers for Alton. It is one of 45 Hampshire towns we track, and it ranks 35th of 45 for solar yield, a town of 19,087 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,043 kWh per kWp a year, 2.86 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £931 of year one benefit, £247 of it from your own generation and £684 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Alton's own PVGIS figure; change the panels, the battery or the export rate and it reruns. The design call replaces every assumption with your roof and your bills.
East Hampshire is the planning authority covering Alton, 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.
Price this for your roof
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.
Modelled for Alton at 51.15196, -0.97497 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
Who runs the grid in Alton
The distribution network operator (DNO) for Alton 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.
Adding a heat pump or an EV charger in Alton
A heat pump in Alton
A heat pump does most of its work from November to February. Over those four months, 12 panels in Alton make about 1,120 kWh, against 3,130 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more than the roof.
Grant support in England comes from the Boiler Upgrade Scheme: £7,500 for an air source or ground source heat pump, £2,500 for air-to-air, and an extra £1,500 until March 2027 where the home is heated by oil or LPG off the gas grid (gov.uk, checked 28 September 2026).
Charging an EV in Alton
A 12-panel roof in Alton makes about 800 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.
If you rent, or own a flat, and have private off-street parking, the government chargepoint grant covers 75% of the cost, capped at £500 a socket, until 31 March 2027 (gov.uk, checked 28 September 2026). The calculator above prices a 7.4kW smart charger from £1,100 installed.
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 Alton
Faults, servicing and ageing inverters follow the same economics in Alton as anywhere else, and the guides below price them plainly.
Alton solar questions
What does a solar panel system produce in Alton?
Each kWp of panels in Alton makes 1,043 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,630 kWh, from about 230 kWh in December up to 800 kWh in July.
How much are solar panels in Alton?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Alton before a battery. What Alton changes is the return, about 6,630 kWh a year from that system, and your design call prices your actual roof.
Would a system in Alton need approval from the network operator?
Alton 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 can I earn from exporting solar in Alton?
With typical use and no battery, a 12-panel system in Alton exports about 5,697 kWh a year. At 12p per kWh that is roughly £684; a supplier paying more, or a battery that keeps more for the evening, changes the figure. See the export rates table.
Is solar worth it in Alton in winter?
It works, but the year is lopsided. 68% of a Alton roof's output lands between April and September; the four months from November to February give about 1,120 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Alton compares with its neighbours
Same satellite dataset, same assumptions, so the differences are real geography rather than modelling noise.
| Town | kWh per kWp a year | vs Alton |
|---|---|---|
| Alton | 1,043 | this town |
| Bordon | 1,025 | −18 kWh |
| Wrecclesham | 1,014 | −29 kWh |
| Farnham | 1,020 | −23 kWh |
| Hook | 1,036 | −7 kWh |
| Basingstoke | 1,031 | −12 kWh |
| Weybourne | 1,020 | −23 kWh |
Each row is a PVGIS v5.2 run at that town's centre with the same settings. Treat gaps of a few kWh as noise and gaps over about 30 kWh per kWp as real differences in sunshine.
Also for Alton: Solar panels in Alton from OVO Solar & Battery
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Further reading for Alton
Sourced, dated and written by us. The same ground we cover on your free call.
The 0% VAT deadline: what ends on 31 March 2027, and what it costs to miss it
The install deadline is still 31 March 2027. Electricity's 0% VAT was extended to the end of June.
Read the guide →Whole home backup or partial backup? The runtime arithmetic
Whole home backup sounds obvious until you do the runtime maths. Here is how to choose the right tier.
Read the guide →The main home EV chargers, compared on what actually differs
Eight popular UK home chargers on cable, connectivity, warranty and tariff integration.
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 →Will energy prices keep rising, and by how much
The January forecasts jumped fast. What is confirmed, what is guessed, and whether solar is a real hedge.
Read the guide →NAPIT, NICEIC and competent person schemes: who tells building control about your solar
Solar work is notifiable. A competent person scheme means your installation team notifies, not you.
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.