Lincolnshire
Solar panels in Deeping St James, designed on a free call.
A 12-panel roof in Deeping St James makes about 6,550 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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Sunlight in Deeping St James, in numbers
From 38 kWh per kWp in December to 124.2 in July: a roof in Deeping St James makes 3.3 times as much in its best month as in its darkest, and 1,030 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.2 |
| February | 54.8 |
| March | 89.9 |
| April | 114 |
| May | 124 |
| June | 120 |
| July | 124 |
| August | 113 |
| September | 96.5 |
| October | 68.1 |
| November | 47.8 |
| 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: Deeping St James makes 1,030 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Deeping St James is 11% above it.
How Deeping St James compares
Small towns rarely get published solar figures, so here are the numbers for Deeping St James. It is one of 22 Lincolnshire towns we track, and it ranks 7th of 22 for solar yield, a town of 7,644 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,030 kWh per kWp a year, 2.82 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £921 of year one benefit, £247 of it from your own generation and £674 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 Deeping St James' own yield.
Any planning application in Deeping St James sits with South Kesteven, and its official House of Commons Library settlement class is 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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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 Deeping St James (52.67359, -0.29342), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
NGED and your Deeping St James connection
On NESO's licence-area map, Deeping St James is in East Midlands, which National Grid Electricity Distribution (NGED) operates. That makes NGED the network operator for any system fitted here.
Most home systems stay within 3.68kW per phase of inverter output, which puts them on G98, a notification to NGED within 28 days of switch-on. Panel count does not decide it; the inverter and any battery do.
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.
Beyond the panels: heating and car charging in Deeping St James
A heat pump in Deeping St James
Heating demand peaks when solar is weakest. In Deeping St James, a 12-panel system makes about 240 kWh in December and 250 kWh in January, a fraction of its 790 kWh in July, which is why a heat pump here is costed on its tariff first.
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 Deeping St James
Deeping St James' July output, about 790 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.
The packages, priced before anyone visits
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Deeping St James
The same sourced benchmarks apply in Deeping St James as everywhere we cover: honest repair pricing and what a service should include.
Solar in Deeping St James: your questions answered
How much electricity do solar panels make in Deeping St James?
About 6,550 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Deeping St James: 1,030 kWh per kWp, or 2.82 peak sun hours a day on average. July is the strongest month, at about 790 kWh.
Is solar more expensive in Deeping St James?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Deeping St James, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,550 kWh a year here, which is what drives payback.
Which DNO covers Deeping St James, and what does it need from me?
National Grid Electricity Distribution (NGED) covers Deeping St James. A home system of up to 3.68kW per phase is notified to NGED within 28 days of commissioning under G98, and nothing waits on approval. Larger outputs need a G99 application before work starts. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late.
What could I earn from exporting in Deeping St James?
On the 12p export scenario, a 12-panel system in Deeping St James sends about 5,614 kWh a year to the grid, worth around £674. The export rates table compares what each supplier pays.
How much solar does Deeping St James get in December?
December is the low point: about 240 kWh from a 12-panel system in Deeping St James, on PVGIS data, rising to 790 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 Deeping St James compares with its neighbours
How the towns nearest Deeping St James compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Deeping St James |
|---|---|---|
| Deeping St James | 1,030 | this town |
| Peterborough | 1,029 | −1 kWh |
| Bourne | 1,028 | −2 kWh |
| Stamford | 1,026 | −4 kWh |
| Spalding | 1,036 | +6 kWh |
| Whittlesey | 1,035 | +5 kWh |
| Yaxley | 1,030 | level |
PVGIS v5.2 for each town centroid, identical assumptions throughout. A few kWh either way is weather-year noise; a spread beyond about 30 kWh per kWp is real geography.
Also for Deeping St James: Solar panels in Deeping St James from OVO Solar & Battery
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Reading for Deeping St James homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
Do you need planning permission for solar panels? Usually not
Usually not, provided the installation stays within the limits updated on 27 August 2026.
Read the guide →How much a battery saves by charging on cheap night rates
What charging at 8.5p and using at 26.32p is actually worth over a year.
Read the guide →How solar aware EV charging actually works
The CT clamp, the surplus tracking and the 1.4kW floor that catches people out.
Read the guide →Do you need to replace your radiators for a heat pump?
Some change, most do not. The room by room arithmetic that decides which.
Read the guide →Choosing a tariff when you have solar, a battery and an EV
Solar, battery and EV want different tariffs. How to work out which one to protect.
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.