Sussex
Solar panels in Seaford, with the numbers shown.
About 7,420 kWh a year from 12 panels in Seaford, £6,360 installed, with your system designed on a free 30-minute video call.
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What a roof in Seaford can generate
Seaford's best month is July, at 146.8 kWh per kWp; December manages 40.7. Over the year that comes to 1,166 kWh per kWp, 2% above our Sussex county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 42.1 |
| February | 59.3 |
| March | 101 |
| April | 133 |
| May | 140 |
| June | 146 |
| July | 147 |
| August | 130 |
| September | 107 |
| October | 72.6 |
| November | 47.5 |
| December | 40.7 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
Against Great Britain as a whole: Seaford makes 1,166 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Seaford is 26% above it.
How Seaford compares
Small towns rarely get published solar figures, so here are the numbers for Seaford. It is one of 33 Sussex towns we track, and it ranks 3rd of 33 for solar yield, a town of 23,907 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,166 kWh per kWp a year, 3.19 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £1,024 of year one benefit, £247 of it from your own generation and £777 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Seaford'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.
Seaford sits within Lewes, its local planning authority, and the House of Commons Library classes it 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 Seaford (50.77759, 0.10811), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
Connecting solar to the Seaford network
Seaford is served by UK Power Networks: the town's centre falls inside its South East England licence area on NESO's boundary map.
Most home systems stay within 3.68kW per phase of inverter output, which puts them on G98, a notification to UK Power Networks within 28 days of switch-on. Panel count does not decide it; the inverter and any battery do.
A bigger inverter or battery output needs a G99 application in advance. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds UK Power Networks as it does every network operator.
Sources: NESO DNO licence areas (3 May 2024); Ofgem, Distributed Generation Standards Direction guidance, checked 27 September 2026. G98 vs G99, explained.
Adding a heat pump or an EV charger in Seaford
A heat pump in Seaford
Solar and a heat pump pull in opposite directions through the year: Seaford's roofs make 1,210 kWh from November to February on a 12-panel system, and 3,580 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
In England, the Boiler Upgrade Scheme pays £7,500 towards an air source or ground source heat pump and £2,500 towards an air-to-air one, with £1,500 more until March 2027 for homes heated by oil or LPG with no mains gas (gov.uk, checked 28 September 2026).
Charging an EV in Seaford
From April to September, 69% of a Seaford roof's yearly output arrives, peaking at about 930 kWh in July on 12 panels. A car parked at home in daylight can soak up what the house, at around 70 kWh of daytime use that month, cannot.
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.
What the named kit costs, installed
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Seaford
Guidance is nationwide, so the benchmarks hold in Seaford: repair costs, service scope, and when the inverter is the real fault.
Common questions about solar in Seaford
What could a roof in Seaford generate?
PVGIS puts a roof in Seaford at 1,166 kWh per kWp a year, 3.19 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 7,420 kWh a year, most of it between April and September.
What would 12 solar panels cost in Seaford?
£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 Seaford differs is output: about 7,420 kWh a year from that system.
Do I need permission from the DNO for solar in Seaford?
Usually not in advance. UK Power Networks, the network operator for Seaford, only needs a G98 notification within 28 days of commissioning for systems up to 3.68kW per phase. Bigger inverter or battery outputs need G99 approval first. Ofgem's guaranteed standard for a low voltage generation connection quotation is 45 working days, with £80 paid for each working day late, and it binds UK Power Networks as it does every network operator. "See our DNO explainer.
How much would export pay on a system in Seaford?
It is exported. With typical use and no battery, about 6,479 kWh of the 7,420 kWh a 12-panel system makes in Seaford goes to the grid, around £777 a year at 12p. A battery keeps more of it for the evening; the export rates table shows what suppliers pay.
Do solar panels work in winter in Seaford?
Yes, at a lower level. PVGIS gives Seaford 40.7 kWh per kWp in December and 42.1 in January, so a 12-panel system makes about 260 kWh and 270 kWh in those months, against 930 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Seaford 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 Seaford |
|---|---|---|
| Seaford | 1,166 | this town |
| Newhaven | 1,162 | −4 kWh |
| Peacehaven | 1,158 | −8 kWh |
| Polegate | 1,153 | −13 kWh |
| Eastbourne | 1,160 | −6 kWh |
| Lewes | 1,177 | +11 kWh |
| Hailsham | 1,158 | −8 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 Seaford: Solar panels in Seaford from OVO Solar & Battery
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Further reading for Seaford
Sourced, dated and written by us. The same ground we cover on your free call.
Why solar panels stop working, and how to work out which one it is
There is an order to this, and it starts at the inverter display rather than the roof.
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 →Three phase and EV charging: what actually changes
Three phase buys 22kW charging. Most cars cannot use it, and load balancing usually solves the real problem.
Read the guide →Which homes suit a heat pump, and which need work first
The trial data says no property type is unsuitable. Design quality decides the outcome.
Read the guide →Which tariffs are actually built for battery charging
A battery buys cheap and uses dear. The tariff decides how much that is worth.
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 →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.