Renfrewshire
Solar panels in Barrhead, designed on a free call.
Twelve panels (6.36 kWp) here make about 5,480 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
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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 Barrhead roof makes, month by month
From 19.6 kWh per kWp in December to 119.9 in May: a roof in Barrhead makes 6.1 times as much in its best month as in its darkest, and 861 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 22.4 |
| February | 42.8 |
| March | 70.4 |
| April | 104 |
| May | 120 |
| June | 112 |
| July | 112 |
| August | 97.4 |
| September | 75.7 |
| October | 52.1 |
| November | 32.8 |
| December | 19.6 |
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 861, Barrhead is 7% below it.
How Barrhead compares
Small towns rarely get published solar figures, so here are the numbers for Barrhead. It is one of 11 Renfrewshire towns we track, and it ranks joint 1st of 11 for solar yield, a town of 17,830 people in the House of Commons Library settlement data. PVGIS gives its roofs 861 kWh per kWp a year, 2.36 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £792 of year one benefit, £247 of it from your own generation and £545 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Barrhead'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 Barrhead sits with East Renfrewshire, 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 Barrhead (55.8008, -4.38962), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
The network operator for Barrhead
The distribution network operator (DNO) for Barrhead is SP Energy Networks, which runs the South and Central Scotland licence area.
For a typical home the paperwork is light: a system of up to 3.68kW per phase goes through G98, which means SP Energy 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 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.
Adding a heat pump or an EV charger in Barrhead
A heat pump in Barrhead
Heating demand peaks when solar is weakest. In Barrhead, a 12-panel system makes about 120 kWh in December and 140 kWh in January, a fraction of its 760 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 Barrhead
Barrhead's May output, about 760 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 Barrhead
If a system in Barrhead is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Barrhead solar questions
How much energy would 12 solar panels make in Barrhead?
Barrhead averages 2.36 peak sun hours a day, which PVGIS turns into 861 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 5,480 kWh, 72% of it between April and September.
Is solar more expensive in Barrhead?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Barrhead, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 5,480 kWh a year here, which is what drives payback.
Who is the network operator in Barrhead, and do I need a G99 application?
The operator is SP Energy Networks. 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. 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. Your design call checks which route yours needs.
What could I earn from exporting in Barrhead?
On the 12p export scenario, a 12-panel system in Barrhead sends about 4,539 kWh a year to the grid, worth around £545. The export rates table compares what each supplier pays.
How does solar perform in Barrhead in the winter months?
December is the weakest month in Barrhead: about 120 kWh from 12 panels, against 760 kWh in May. The panels still generate on bright winter days; they just cover a smaller share of what the house uses.
How Barrhead compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Barrhead.
| Town | kWh per kWp a year | vs Barrhead |
|---|---|---|
| Barrhead | 861 | this town |
| Newton Mearns | 830 | −31 kWh |
| Paisley | 858 | −3 kWh |
| Johnstone | 851 | −10 kWh |
| Renfrew | 860 | −1 kWh |
| Linwood | 851 | −10 kWh |
| Rutherglen | 856 | −5 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 Barrhead: Solar panels in Barrhead 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.
How long do solar panels last? 25 to 30 years, in practice
The panels outlast the inverter by a wide margin. Plan for that, not for cleaning.
Read the guide →Sigenergy SigenStor review: the 5-in-1 tower examined
The 5-in-1 tower reviewed by a site that does not sell it, warranty arithmetic included.
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 →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 →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 →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.