Sussex
Solar panels in East Grinstead, designed on a free call.
About 6,580 kWh a year from 12 panels in East Grinstead, £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
Sunlight in East Grinstead, in numbers
East Grinstead's best month is July, at 128.4 kWh per kWp; December manages 37. Over the year that comes to 1,034 kWh per kWp, 9% below our Sussex county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.2 |
| February | 52.1 |
| March | 88.4 |
| April | 116 |
| May | 124 |
| June | 127 |
| July | 128 |
| August | 112 |
| September | 97.1 |
| October | 66.7 |
| November | 47 |
| December | 37 |
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: East Grinstead makes 1,034 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so East Grinstead is 12% above it.
How East Grinstead compares
Among the places we publish figures for, East Grinstead is one of 33 Sussex towns we track, and it ranks 33rd of 33 for solar yield. It is a medium town in the House of Commons Library classification, with 27,413 residents, and its roofs see 2.83 peak sun hours a day across the year. That drives the standard 12 panel model to 6,576 kWh of generation, of which around 5,640 kWh is exported at 12p for £677 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on East Grinstead's own yield, and 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.
Planning applications here go through Mid Sussex; nationally, the House of Commons Library classes East Grinstead as a medium 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 East Grinstead at 51.12794, -0.01276 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
The network operator for East Grinstead
East Grinstead sits in UK Power Networks' South East England licence area, so UK Power Networks is the network operator (DNO) any solar panels or battery here are registered with.
G98 is the simple route. If the inverter, plus any battery, stays at or under 3.68kW per phase, UK Power Networks only has to be told within 28 days after the system is commissioned.
Above that, G99 means applying before the work is booked. 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.
Heat pumps and EV charging in East Grinstead
A heat pump in East Grinstead
In December, the darkest month here, 12 panels in East Grinstead make about 240 kWh. That is when a heat pump runs hardest, so its running cost in East Grinstead comes down to the tariff and the flow temperature rather than the roof.
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 East Grinstead
East Grinstead's July output, about 820 kWh from 12 panels, is several times the 70 kWh or so a typical home uses in daylight that month on our calculator's settings. Daytime charging turns that surplus into miles.
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.
Installed prices, the same in every town
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in East Grinstead
If a system in East Grinstead is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
East Grinstead solar questions
How much energy would 12 solar panels make in East Grinstead?
East Grinstead averages 2.83 peak sun hours a day, which PVGIS turns into 1,034 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 6,580 kWh, 68% of it between April and September.
Is solar more expensive in East Grinstead?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in East Grinstead, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,580 kWh a year here, which is what drives payback.
Who is the network operator in East Grinstead, and do I need a G99 application?
The operator is UK Power Networks. 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. 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. Your design call checks which route yours needs.
What could I earn from exporting in East Grinstead?
On the 12p export scenario, a 12-panel system in East Grinstead sends about 5,640 kWh a year to the grid, worth around £677. The export rates table compares what each supplier pays.
How does solar perform in East Grinstead in the winter months?
December is the weakest month in East Grinstead: about 240 kWh from 12 panels, against 820 kWh in July. The panels still generate on bright winter days; they just cover a smaller share of what the house uses.
How East Grinstead compares with its neighbours
How the towns nearest East Grinstead compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs East Grinstead |
|---|---|---|
| East Grinstead | 1,034 | this town |
| Edenbridge | 1,050 | +16 kWh |
| Horley | 1,032 | −2 kWh |
| Crawley | 1,035 | +1 kWh |
| Oxted | 1,046 | +12 kWh |
| Crowborough | 1,054 | +20 kWh |
| Haywards Heath | 1,088 | +54 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 East Grinstead: Solar panels in East Grinstead from OVO Solar & Battery
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Reading for East Grinstead homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
Solar panel grants and funding in 2026: what actually exists, and what is a sales pitch
No blanket grant exists, and the four supports that do exist are better than most of the adverts.
Read the guide →What a battery gateway actually does
Without a gateway your system shuts down when the grid does. Here is what the box actually does.
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 →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 →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 →HIES explained: what the badge actually protects, and when
What HIES protects: deposits up to 25 percent capped at 5,000 pounds, and your workmanship guarantee.
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.