Stirlingshire
Solar panels in Grangemouth, priced before anyone visits.
A 12-panel roof in Grangemouth makes about 5,530 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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Sunlight in Grangemouth, in numbers
Grangemouth's best month is May, at 120.2 kWh per kWp; December manages 20.6. Over the year that comes to 870 kWh per kWp, 6% above our Stirlingshire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 24.8 |
| February | 43.6 |
| March | 72.5 |
| April | 104 |
| May | 120 |
| June | 110 |
| July | 110 |
| August | 98 |
| September | 78.7 |
| October | 53.6 |
| November | 34 |
| December | 20.6 |
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: Grangemouth makes 870 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Grangemouth is 6% below it.
How Grangemouth compares
Small towns rarely get published solar figures, so here are the numbers for Grangemouth. It is one of 9 Stirlingshire towns we track, and it ranks 3rd of 9 for solar yield, a town of 16,008 people in the House of Commons Library settlement data. PVGIS gives its roofs 870 kWh per kWp a year, 2.38 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £799 of year one benefit, £247 of it from your own generation and £552 from export at 12p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Grangemouth'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 Falkirk; nationally, the House of Commons Library classes Grangemouth 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.
The figures use PVGIS for the centre of Grangemouth (56.01956, -3.72189), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
The network operator for Grangemouth
Grangemouth is served by SP Energy Networks: the town's centre falls inside its South and Central Scotland licence area on NESO's boundary map.
What decides the paperwork is the inverter and battery output, not the number of panels. Up to 3.68kW per phase, a system follows G98: SP Energy Networks is notified within 28 days of commissioning and nothing has to be approved first.
Larger systems go through G99 instead, applied for before installation. On timing: 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 SP Energy 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 Grangemouth
A heat pump in Grangemouth
In December, the darkest month here, 12 panels in Grangemouth make about 130 kWh. That is when a heat pump runs hardest, so its running cost in Grangemouth comes down to the tariff and the flow temperature rather than the roof.
In Scotland, Home Energy Scotland offers a grant of up to £7,500 towards a heat pump, an optional interest-free loan of up to £7,500 on top, and £1,500 more for rural and island homes (Home Energy Scotland, checked 28 September 2026).
Charging an EV in Grangemouth
Summer is where a car earns its place. In May, 12 panels in Grangemouth make about 760 kWh, against roughly 70 kWh a typical home uses in daylight that month on our calculator's typical-use settings, so there is surplus a smart charger can put into the car instead of exporting it.
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).
What the named kit costs, installed
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Grangemouth
The same sourced benchmarks apply in Grangemouth as everywhere we cover: honest repair pricing and what a service should include.
Solar in Grangemouth: your questions answered
How much electricity do solar panels make in Grangemouth?
About 5,530 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Grangemouth: 870 kWh per kWp, or 2.38 peak sun hours a day on average. May is the strongest month, at about 760 kWh.
What does a typical solar system cost in Grangemouth?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in Grangemouth, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 5,530 kWh a year. The final figure comes from your roof on the design call.
Which DNO covers Grangemouth, and what does it need from me?
SP Energy Networks covers Grangemouth. A home system of up to 3.68kW per phase is notified to SP Energy 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 SP Energy Networks as it does every network operator.
What happens to the solar I do not use in Grangemouth?
Around £552 a year at 12p per kWh, for the roughly 4,597 kWh a 12-panel system in Grangemouth exports with typical use. Rates vary by supplier and some need their own tariff; the export rates table is dated and sourced.
How much solar does Grangemouth get in December?
December is the low point: about 130 kWh from a 12-panel system in Grangemouth, on PVGIS data, rising to 760 kWh in May. From November to February the same system makes about 780 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Grangemouth compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Grangemouth.
| Town | kWh per kWp a year | vs Grangemouth |
|---|---|---|
| Grangemouth | 870 | this town |
| Polmont | 869 | −1 kWh |
| Falkirk | 867 | −3 kWh |
| Larbert and Stenhousemuir | 873 | +3 kWh |
| Bo'ness | 869 | −1 kWh |
| Linlithgow | 870 | level |
| Bonnybridge | 862 | −8 kWh |
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 Grangemouth: Solar panels in Grangemouth from OVO Solar & Battery
See a number before you speak to anyone
Answer a few questions about your roof and usage and see an instant solar and battery estimate. No email needed to see the result.
Guides worth reading before your call
Sourced, dated and written by us. The same ground we cover on your free call.
What solar actually costs in 2026, and where every pound goes
Around £8,677 average, £1,550 to £1,800 per kW. Where every pound actually goes.
Read the guide →Does a standalone battery actually pay back?
No panels means one job: buy cheap, use later. The tariff decides whether it pays.
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 →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 →Why the best export rates always carry conditions
The top export rates are acquisition offers. Here is how to price the condition.
Read the guide →NAPIT, NICEIC and competent person schemes: who tells building control about your solar
Solar work is notifiable. A competent person scheme means your installation team notifies, not you.
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.