Suffolk
Solar panels in Haverhill, designed on a free call.
About 6,630 kWh a year from 12 panels in Haverhill, £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
How much a Haverhill roof makes, month by month
Haverhill's best month is July, at 125.5 kWh per kWp; December manages 36.8. Over the year that comes to 1,043 kWh per kWp, 1% below our Suffolk county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.2 |
| February | 54.1 |
| March | 89.3 |
| April | 118 |
| May | 124 |
| June | 125 |
| July | 126 |
| August | 113 |
| September | 99 |
| October | 69.5 |
| November | 48.8 |
| December | 36.8 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,043 kWh per kWp in Haverhill against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Haverhill 13% above it.
How Haverhill compares
Among the places we publish figures for, Haverhill is one of 16 Suffolk towns we track, and it ranks 12th of 16 for solar yield. It is a medium town in the House of Commons Library classification, with 28,502 residents, and its roofs see 2.86 peak sun hours a day across the year. That drives the standard 12 panel model to 6,633 kWh of generation, of which around 5,697 kWh is exported at 12p for £684 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
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 Haverhill's own yield.
Any planning application in Haverhill sits with West Suffolk, and its official House of Commons Library settlement class is 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.
The figures use PVGIS for the centre of Haverhill (52.08293, 0.43487), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
The network operator for Haverhill
UK Power Networks owns and runs the local electricity network in Haverhill, as part of its East England licence area.
For a typical home the paperwork is light: a system of up to 3.68kW per phase goes through G98, which means UK Power Networks is notified within 28 days of switch-on rather than asked beforehand.
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.
Beyond the panels: heating and car charging in Haverhill
A heat pump in Haverhill
Heating demand peaks when solar is weakest. In Haverhill, a 12-panel system makes about 230 kWh in December and 250 kWh in January, a fraction of its 800 kWh in July, which is why a heat pump here is costed on its tariff first.
The Boiler Upgrade Scheme, open in England and Wales, takes £7,500 off an air source or ground source heat pump, or £2,500 off an air-to-air unit. Homes on oil or LPG with no mains gas get £1,500 more until March 2027 (gov.uk, checked 28 September 2026).
Charging an EV in Haverhill
Haverhill's July output, about 800 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.
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 Haverhill
The same sourced benchmarks apply in Haverhill as everywhere we cover: honest repair pricing and what a service should include.
Common questions about solar in Haverhill
How much electricity do solar panels make in Haverhill?
About 6,630 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Haverhill: 1,043 kWh per kWp, or 2.86 peak sun hours a day on average. July is the strongest month, at about 800 kWh.
Is solar more expensive in Haverhill?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Haverhill, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,630 kWh a year here, which is what drives payback.
Which DNO covers Haverhill, and what does it need from me?
UK Power Networks covers Haverhill. A home system of up to 3.68kW per phase is notified to UK Power Networks within 28 days of commissioning under G98, and nothing waits on approval. Larger outputs need a G99 application before work starts. 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.
What could I earn from exporting in Haverhill?
On the 12p export scenario, a 12-panel system in Haverhill sends about 5,697 kWh a year to the grid, worth around £684. The export rates table compares what each supplier pays.
How much solar does Haverhill get in December?
December is the low point: about 230 kWh from a 12-panel system in Haverhill, on PVGIS data, rising to 800 kWh in July. From November to February the same system makes about 1,140 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Haverhill 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 Haverhill |
|---|---|---|
| Haverhill | 1,043 | this town |
| Saffron Walden | 1,031 | −12 kWh |
| Newmarket | 1,032 | −11 kWh |
| Halstead | 1,062 | +19 kWh |
| Sudbury | 1,054 | +11 kWh |
| Great Dunmow | 1,055 | +12 kWh |
| Braintree | 1,065 | +22 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 Haverhill: Solar panels in Haverhill from OVO Solar & Battery
Also near Haverhill
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Further reading for Haverhill
Sourced, dated and written by us. The same ground we cover on your free call.
Aiko vs LONGi for a UK roof: Neostar 3 or Hi-MO X10?
Datasheet against datasheet, with a verdict by roof type and the warranty by series.
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 →Home EV charger types and speeds, explained properly
Granny cable, 7kW wall unit or 22kW three phase. What each adds per hour, and which you need.
Read the guide →Heat pump running costs versus a gas boiler, assumptions shown
Four numbers decide it: seasonal efficiency, flow temperature, tariff and heat demand.
Read the guide →Why tariff choice moves payback more than kit choice
Identical kit, five times the export income. The tariff decision worked through with August 2026 rates.
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.