Renfrewshire
Solar panels in Renfrew, priced before anyone visits.
A 12-panel roof in Renfrew makes about 5,470 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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Sunlight in Renfrew, in numbers
Renfrew's best month is May, at 119.9 kWh per kWp; December manages 19.6. Over the year that comes to 860 kWh per kWp, 1% above our Renfrewshire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 22.4 |
| February | 42.9 |
| March | 70.6 |
| April | 104 |
| May | 120 |
| June | 111 |
| July | 111 |
| August | 97.4 |
| September | 75.6 |
| October | 52 |
| 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.
Against Great Britain as a whole: Renfrew makes 860 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Renfrew is 7% below it.
How Renfrew compares
Small towns rarely get published solar figures, so here are the numbers for Renfrew. It is one of 11 Renfrewshire towns we track, and it ranks 3rd of 11 for solar yield, a town of 22,944 people in the House of Commons Library settlement data. PVGIS gives its roofs 860 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 £791 of year one benefit, £247 of it from your own generation and £544 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Renfrew'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 Renfrew sits with 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 Renfrew (55.8799, -4.38528), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
The network operator for Renfrew
SP Energy Networks owns and runs the local electricity network in Renfrew, as part of its South and Central Scotland licence area.
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.
Adding a heat pump or an EV charger in Renfrew
A heat pump in Renfrew
In December, the darkest month here, 12 panels in Renfrew make about 120 kWh. That is when a heat pump runs hardest, so its running cost in Renfrew 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 Renfrew
Summer is where a car earns its place. In May, 12 panels in Renfrew 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.
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 Renfrew
If a system in Renfrew is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Renfrew solar questions
How much energy would 12 solar panels make in Renfrew?
Renfrew averages 2.36 peak sun hours a day, which PVGIS turns into 860 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 5,470 kWh, 72% of it between April and September.
What does a typical solar system cost in Renfrew?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in Renfrew, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 5,470 kWh a year. The final figure comes from your roof on the design call.
Who is the network operator in Renfrew, 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 happens to the solar I do not use in Renfrew?
Around £544 a year at 12p per kWh, for the roughly 4,533 kWh a 12-panel system in Renfrew exports with typical use. Rates vary by supplier and some need their own tariff; the export rates table is dated and sourced.
How does solar perform in Renfrew in the winter months?
December is the weakest month in Renfrew: 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 Renfrew compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Renfrew.
| Town | kWh per kWp a year | vs Renfrew |
|---|---|---|
| Renfrew | 860 | this town |
| Clydebank | 859 | −1 kWh |
| Paisley | 858 | −2 kWh |
| Bearsden | 851 | −9 kWh |
| Erskine | 861 | +1 kWh |
| Milngavie | 852 | −8 kWh |
| Linwood | 851 | −9 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 Renfrew: Solar panels in Renfrew 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.
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 →Which battery size band does your home fall into?
Where UK homes actually land, why oversizing costs you, and what shifts the band.
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 →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 →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.