Argyllshire
Solar panels in Stewarton, designed on a free call.
About 5,980 kWh a year from 12 panels in Stewarton, £6,360 installed, with your system designed on a free 30-minute video call.
Get my free quote
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.
or call 07782 219224
- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
How much a Stewarton roof makes, month by month
Stewarton's best month is May, at 134.4 kWh per kWp; December manages 19.1. Over the year that comes to 941 kWh per kWp, 23% above our Argyllshire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 22.5 |
| February | 44.8 |
| March | 80.6 |
| April | 118 |
| May | 134 |
| June | 125 |
| July | 124 |
| August | 108 |
| September | 80.2 |
| October | 53.6 |
| November | 31.5 |
| December | 19.1 |
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: Stewarton makes 941 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Stewarton is 2% above it.
How Stewarton compares
Small towns rarely get published solar figures, so here are the numbers for Stewarton. It is one of 3 Argyllshire towns we track, and it ranks 1st of 3 for solar yield, a town of 8,033 people in the House of Commons Library settlement data. PVGIS gives its roofs 941 kWh per kWp a year, 2.58 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £853 of year one benefit, £247 of it from your own generation and £606 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Stewarton's own PVGIS figure; change the panels, the battery or the export rate and it reruns. The design call replaces every assumption with your roof and your bills.
Any planning application in Stewarton sits with Argyll and Bute, 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.
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 Stewarton (55.41791, -5.64176), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
SSEN and your Stewarton connection
Stewarton is served by Scottish and Southern Electricity Networks (SSEN): the town's centre falls inside its North 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: SSEN is notified within 28 days of commissioning and nothing has to be approved first.
Above that, G99 means applying before the work is booked. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW.
Sources: NESO DNO licence areas (3 May 2024); SSEN, micro-generation connections page, checked 25 September 2026. G98 vs G99, explained.
Adding a heat pump or an EV charger in Stewarton
A heat pump in Stewarton
Heating demand peaks when solar is weakest. In Stewarton, a 12-panel system makes about 120 kWh in December and 140 kWh in January, a fraction of its 850 kWh in May, which is why a heat pump here is costed on its tariff first.
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 Stewarton
Stewarton's May output, about 850 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).
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 Stewarton
The same sourced benchmarks apply in Stewarton as everywhere we cover: honest repair pricing and what a service should include.
Stewarton solar questions
How much electricity do solar panels make in Stewarton?
About 5,980 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Stewarton: 941 kWh per kWp, or 2.58 peak sun hours a day on average. May is the strongest month, at about 850 kWh.
Is solar more expensive in Stewarton?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Stewarton, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 5,980 kWh a year here, which is what drives payback.
Which DNO covers Stewarton, and what does it need from me?
Scottish and Southern Electricity Networks (SSEN) covers Stewarton. A home system of up to 3.68kW per phase is notified to SSEN within 28 days of commissioning under G98, and nothing waits on approval. Larger outputs need a G99 application before work starts. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW.
What could I earn from exporting in Stewarton?
On the 12p export scenario, a 12-panel system in Stewarton sends about 5,048 kWh a year to the grid, worth around £606. The export rates table compares what each supplier pays.
How much solar does Stewarton get in December?
December is the low point: about 120 kWh from a 12-panel system in Stewarton, on PVGIS data, rising to 850 kWh in May. From November to February the same system makes about 750 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Stewarton 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 Stewarton |
|---|---|---|
| Stewarton | 941 | this town |
| Ardrossan | 885 | −56 kWh |
| Saltcoats | 885 | −56 kWh |
| Stevenston | 886 | −55 kWh |
| Troon | 906 | −35 kWh |
| Ayr | 899 | −42 kWh |
| Largs | 881 | −60 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 Stewarton: Solar panels in Stewarton from OVO Solar & Battery
Also near Stewarton
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.
Further reading for Stewarton
Sourced, dated and written by us. The same ground we cover on your free call.
Solar panel types, and the four numbers that actually matter
TOPCon, HJT and back contact decoded, plus the four numbers worth comparing.
Read the guide →Tesla Powerwall 3 against the alternatives, and where each one wins
The strongest single box in the market, and the houses it is still wrong for.
Read the guide →The main home EV chargers, compared on what actually differs
Eight popular UK home chargers on cable, connectivity, warranty and tariff integration.
Read the guide →What MCS certification actually buys you on a heat pump job
The gate on the £7,500 grant, the design standard behind your running costs, and the noise sign-off.
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.