Lincolnshire
Solar panels in Horncastle, designed on a free call.
Twelve panels (6.36 kWp) here make about 6,450 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
- Installed by our MCS-certified, fully insured teams
Sunlight in Horncastle, in numbers
From 35.4 kWh per kWp in December to 125.6 in May: a roof in Horncastle makes 3.5 times as much in its best month as in its darkest, and 1,014 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 36.9 |
| February | 52.5 |
| March | 87.7 |
| April | 113 |
| May | 126 |
| June | 120 |
| July | 123 |
| August | 112 |
| September | 95 |
| October | 67.1 |
| November | 45.6 |
| December | 35.4 |
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 1,014, Horncastle is 10% above it.
How Horncastle compares
Small towns rarely get published solar figures, so here are the numbers for Horncastle. It is one of 22 Lincolnshire towns we track, and it ranks joint 14th of 22 for solar yield, a town of 7,713 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,014 kWh per kWp a year, 2.78 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £908 of year one benefit, £247 of it from your own generation and £661 from export at 12p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Horncastle'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 East Lindsey; nationally, the House of Commons Library classes Horncastle 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.
Modelled for Horncastle at 53.20751, -0.11422 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
NGED and your Horncastle connection
Horncastle sits in National Grid Electricity Distribution's East Midlands licence area, so NGED is the network operator (DNO) any solar panels or battery here are registered with.
Below 3.68kW per phase of inverter and battery output, the G98 route applies: the installation is notified to NGED within 28 days of commissioning, with no prior approval.
Above that, G99 means applying before the work is booked. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late.
Sources: NESO DNO licence areas (3 May 2024); NGED, guaranteed standards of performance table, checked 25 September 2026. G98 vs G99, explained.
Heat pumps and EV charging in Horncastle
A heat pump in Horncastle
In December, the darkest month here, 12 panels in Horncastle make about 230 kWh. That is when a heat pump runs hardest, so its running cost in Horncastle comes down to the tariff and the flow temperature rather than the roof.
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 Horncastle
Horncastle's May 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 Horncastle
If a system in Horncastle is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Horncastle solar questions
How much energy would 12 solar panels make in Horncastle?
Horncastle averages 2.78 peak sun hours a day, which PVGIS turns into 1,014 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 6,450 kWh, 68% of it between April and September.
Is solar more expensive in Horncastle?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Horncastle, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,450 kWh a year here, which is what drives payback.
Who is the network operator in Horncastle, and do I need a G99 application?
The operator is National Grid Electricity Distribution (NGED). 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. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late. Your design call checks which route yours needs.
What could I earn from exporting in Horncastle?
On the 12p export scenario, a 12-panel system in Horncastle sends about 5,512 kWh a year to the grid, worth around £661. The export rates table compares what each supplier pays.
How does solar perform in Horncastle in the winter months?
December is the weakest month in Horncastle: about 230 kWh from 12 panels, against 800 kWh in May. The panels still generate on bright winter days; they just cover a smaller share of what the house uses.
How Horncastle 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 Horncastle |
|---|---|---|
| Horncastle | 1,014 | this town |
| Louth | 1,028 | +14 kWh |
| Boston | 1,043 | +29 kWh |
| Waddington | 1,018 | +4 kWh |
| Mablethorpe | 1,034 | +20 kWh |
| Lincoln | 1,010 | −4 kWh |
| Skegness | 1,014 | level |
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 Horncastle: Solar panels in Horncastle from OVO Solar & Battery
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Further reading for Horncastle
Sourced, dated and written by us. The same ground we cover on your free call.
Single phase or three phase? The sixty-second check that decides your system size
One look at your fuse board sets the ceiling on how much solar you can connect.
Read the guide →Inside a home battery: capacity, power and losses
Usable capacity, kW output, round trip losses and chemistry, in plain terms.
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 →How much does a heat pump cost? The 2026 numbers, before and after the grant
UK median installed cost around £12,908, before the up to £7,500 grant comes off.
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 →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.