Hampshire
Solar panels in East Cowes, priced before anyone visits.
Twelve panels (6.36 kWp) here make about 7,070 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
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- Free 30-minute video design call
- Priced before anyone visits
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How much a East Cowes roof makes, month by month
From 38.3 kWh per kWp in December to 138.2 in July: a roof in East Cowes makes 3.6 times as much in its best month as in its darkest, and 1,112 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 42.1 |
| February | 58.1 |
| March | 97.6 |
| April | 127 |
| May | 133 |
| June | 137 |
| July | 138 |
| August | 120 |
| September | 103 |
| October | 69.7 |
| 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 1,112, East Cowes is 20% above it.
How East Cowes compares
Small towns rarely get published solar figures, so here are the numbers for East Cowes. It is one of 45 Hampshire towns we track, and it ranks joint 18th of 45 for solar yield, a town of 8,410 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,112 kWh per kWp a year, 3.05 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £983 of year one benefit, £247 of it from your own generation and £736 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 East Cowes' own yield.
Planning applications here go through Isle of Wight; nationally, the House of Commons Library classes East Cowes 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.
The figures use PVGIS for the centre of East Cowes (50.7528, -1.28218), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
SSEN and your East Cowes connection
The distribution network operator (DNO) for East Cowes 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.
Larger systems go through G99 instead, applied for before installation. On timing: 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 East Cowes
A heat pump in East Cowes
Heating demand peaks when solar is weakest. In East Cowes, a 12-panel system makes about 240 kWh in December and 270 kWh in January, a fraction of its 880 kWh in July, which is why a heat pump here is costed on its tariff first.
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 East Cowes
Summer is where a car earns its place. In July, 12 panels in East Cowes make about 880 kWh, against roughly 70 kWh a typical home uses in daylight that month on our calculator's typical-use settings, so there is surplus a smart charger can put into the car instead of exporting it.
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 East Cowes
If a system in East Cowes is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Solar in East Cowes: your questions answered
How much energy would 12 solar panels make in East Cowes?
East Cowes averages 3.05 peak sun hours a day, which PVGIS turns into 1,112 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 7,070 kWh, 68% of it between April and September.
What does a typical solar system cost in East Cowes?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in East Cowes, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 7,070 kWh a year. The final figure comes from your roof on the design call.
Who is the network operator in East Cowes, and do I need a G99 application?
The operator is Scottish and Southern Electricity Networks (SSEN). Most home systems use the G98 route, a notification within 28 days of switch-on for up to 3.68kW per phase, so nothing waits on the network. Above that, G99 applies and has to be granted first. 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. Your design call checks which route yours needs.
What happens to the solar I do not use in East Cowes?
Around £736 a year at 12p per kWh, for the roughly 6,136 kWh a 12-panel system in East Cowes exports with typical use. Rates vary by supplier and some need their own tariff; the export rates table is dated and sourced.
How does solar perform in East Cowes in the winter months?
December is the weakest month in East Cowes: about 240 kWh from 12 panels, against 880 kWh in July. The panels still generate on bright winter days; they just cover a smaller share of what the house uses.
How East Cowes compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as East Cowes.
| Town | kWh per kWp a year | vs East Cowes |
|---|---|---|
| East Cowes | 1,112 | this town |
| Cowes | 1,125 | +13 kWh |
| Newport (Isle of Wight) | 1,150 | +38 kWh |
| Lee-on-the-Solent | 1,104 | −8 kWh |
| Ryde | 1,136 | +24 kWh |
| Gosport | 1,116 | +4 kWh |
| Locks Heath | 1,090 | −22 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 East Cowes: Solar panels in East Cowes from OVO Solar & Battery
Also near East Cowes
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Guides worth reading before your call
Sourced, dated and written by us. The same ground we cover on your free call.
Microinverters, optimisers or a plain string inverter: who needs what
Shade and roof layout decide this. An honest triage of the three approaches.
Read the guide →Tesla Powerwall 3 vs Duracell Dura16: which fits your home?
The two packages we actually price, compared on the numbers that decide it.
Read the guide →Smart charge point regulations, explained
Why your charger arrives pre-set to charge overnight, and why it waits before it starts.
Read the guide →How an air source heat pump actually works
It moves heat rather than making it. The cycle, the efficiency numbers and the trade-offs.
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 →How to check an MCS certificate is genuine, before the deposit leaves your account
A logo proves nothing. Certification is business specific, technology specific and checkable.
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.