Suffolk
Solar panels in Hadleigh, with the numbers shown.
Twelve panels (6.36 kWp) here make about 6,820 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
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What a roof in Hadleigh can generate
PVGIS puts Hadleigh at 1,072 kWh per kWp a year, 2% above our Suffolk county estimate. 68% of it arrives between April and September, peaking in July.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40.7 |
| February | 55.5 |
| March | 91.9 |
| April | 122 |
| May | 129 |
| June | 129 |
| July | 129 |
| August | 117 |
| September | 101 |
| October | 70.5 |
| November | 49.5 |
| December | 38 |
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: Hadleigh makes 1,072 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Hadleigh is 16% above it.
How Hadleigh compares
Small towns rarely get published solar figures, so here are the numbers for Hadleigh. It is one of 16 Suffolk towns we track, and it ranks 6th of 16 for solar yield, a town of 9,099 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,072 kWh per kWp a year, 2.94 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £953 of year one benefit, £247 of it from your own generation and £706 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 Hadleigh's own yield.
Hadleigh sits within Babergh, 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.
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Generation is modelled from PVGIS satellite data for Hadleigh's own coordinates (52.04594, 0.96009), using the same 26.32p/kWh import value and £1,000 per kWp installed pricing as every Clearline estimate; the methodology is on our help page.
Connecting solar to the Hadleigh network
On NESO's licence-area map, Hadleigh is in East England, which UK Power Networks operates. That makes UK Power Networks the network operator for any system fitted here.
Below 3.68kW per phase of inverter and battery output, the G98 route applies: the installation is notified to UK Power Networks within 28 days of commissioning, with no prior approval.
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.
Beyond the panels: heating and car charging in Hadleigh
A heat pump in Hadleigh
Solar and a heat pump pull in opposite directions through the year: Hadleigh's roofs make 1,170 kWh from November to February on a 12-panel system, and 3,200 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
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 Hadleigh
From April to September, 68% of a Hadleigh roof's yearly output arrives, peaking at about 820 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.
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).
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 Hadleigh
Guidance is nationwide, so the benchmarks hold in Hadleigh: repair costs, service scope, and when the inverter is the real fault.
Common questions about solar in Hadleigh
What could a roof in Hadleigh generate?
PVGIS puts a roof in Hadleigh at 1,072 kWh per kWp a year, 2.94 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,820 kWh a year, most of it between April and September.
What would 12 solar panels cost in Hadleigh?
£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 Hadleigh differs is output: about 6,820 kWh a year from that system.
Do I need permission from the DNO for solar in Hadleigh?
Usually not in advance. UK Power Networks, the network operator for Hadleigh, 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 Hadleigh?
It is exported. With typical use and no battery, about 5,881 kWh of the 6,820 kWh a 12-panel system makes in Hadleigh goes to the grid, around £706 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 Hadleigh?
Yes, at a lower level. PVGIS gives Hadleigh 38 kWh per kWp in December and 40.7 in January, so a 12-panel system makes about 240 kWh and 260 kWh in those months, against 820 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Hadleigh compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Hadleigh.
| Town | kWh per kWp a year | vs Hadleigh |
|---|---|---|
| Hadleigh | 1,072 | this town |
| Ipswich | 1,079 | +7 kWh |
| Sudbury | 1,054 | −18 kWh |
| Stowmarket | 1,056 | −16 kWh |
| Colchester | 1,082 | +10 kWh |
| Kesgrave | 1,090 | +18 kWh |
| Berechurch | 1,091 | +19 kWh |
Same PVGIS v5.2 query for every town. Small differences are within year-to-year weather; more than about 30 kWh per kWp apart is geography.
Also for Hadleigh: Solar panels in Hadleigh from OVO Solar & Battery
Also near Hadleigh
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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.
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Read the guide →The Boiler Upgrade Scheme, explained
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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.