Gloucestershire
Solar panels in Filton, sized to your roof.
Twelve panels (6.36 kWp) here make about 6,450 kWh a year for £6,360 installed, designed around your roof 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
What a roof in Filton can generate
Filton's best month is May, at 124 kWh per kWp; December manages 34.9. Over the year that comes to 1,014 kWh per kWp, 1% above our Gloucestershire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 38.8 |
| February | 54.2 |
| March | 87.5 |
| April | 116 |
| May | 124 |
| June | 122 |
| July | 124 |
| August | 108 |
| September | 95.5 |
| October | 65 |
| November | 44.2 |
| December | 34.9 |
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: Filton makes 1,014 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Filton is 10% above it.
How Filton compares
Small towns rarely get published solar figures, so here are the numbers for Filton. It is one of 24 Gloucestershire towns we track, and it ranks 5th of 24 for solar yield, a town of 11,701 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,014 kWh per kWp a year, 2.78 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £908 of year one benefit, £247 of it from your own generation and £661 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Filton'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.
Filton sits within South Gloucestershire, its local planning authority, and the House of Commons Library classes it 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.
Modelled for Filton at 51.51237, -2.57404 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
Connecting solar to the Filton network
Filton is served by National Grid Electricity Distribution (NGED): the town's centre falls inside its South West England licence area on NESO's boundary map.
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.
A bigger inverter or battery output needs a G99 application in advance. 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.
Adding a heat pump or an EV charger in Filton
A heat pump in Filton
Solar and a heat pump pull in opposite directions through the year: Filton's roofs make 1,090 kWh from November to February on a 12-panel system, and 3,040 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
In England, the Boiler Upgrade Scheme pays £7,500 towards an air source or ground source heat pump and £2,500 towards an air-to-air one, with £1,500 more until March 2027 for homes heated by oil or LPG with no mains gas (gov.uk, checked 28 September 2026).
Charging an EV in Filton
A 12-panel roof in Filton makes about 790 kWh in May. A typical home uses around 70 kWh of that in daylight (the calculator's typical-use settings), which leaves most of the month's output for an EV or for export.
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.
Installed prices, the same in every town
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Filton
Guidance is nationwide, so the benchmarks hold in Filton: repair costs, service scope, and when the inverter is the real fault.
Common questions about solar in Filton
What could a roof in Filton generate?
PVGIS puts a roof in Filton at 1,014 kWh per kWp a year, 2.78 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,450 kWh a year, most of it between April and September.
What would 12 solar panels cost in Filton?
£6,360 for 12 panels (6.36 kWp), the same as in every other place we cover, because solar is priced at £1,000 per kWp installed rather than by area. A battery adds its own installed price on top. Where Filton differs is output: about 6,450 kWh a year from that system.
Do I need permission from the DNO for solar in Filton?
Usually not in advance. NGED, the network operator for Filton, only needs a G98 notification within 28 days of commissioning for systems up to 3.68kW per phase. Bigger inverter or battery outputs need G99 approval first. NGED's guaranteed standards give 45 working days for a low voltage generation quotation, with £80 paid for each working day late. "See our DNO explainer.
How much would export pay on a system in Filton?
It is exported. With typical use and no battery, about 5,512 kWh of the 6,450 kWh a 12-panel system makes in Filton goes to the grid, around £661 a year at 12p. A battery keeps more of it for the evening; the export rates table shows what suppliers pay.
Do solar panels work in winter in Filton?
Yes, at a lower level. PVGIS gives Filton 34.9 kWh per kWp in December and 38.8 in January, so a 12-panel system makes about 220 kWh and 250 kWh in those months, against 790 kWh in May. Winter output mostly covers daytime use rather than exporting.
How Filton 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 Filton |
|---|---|---|
| Filton | 1,014 | this town |
| Stoke Gifford | 1,010 | −4 kWh |
| Patchway | 1,013 | −1 kWh |
| Bradley Stoke | 1,009 | −5 kWh |
| Frampton Cotterell and Winterbourne | 1,001 | −13 kWh |
| Bristol | 1,021 | +7 kWh |
| Kingswood and Fishponds | 1,019 | +5 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 Filton: Solar panels in Filton 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.
Further reading for Filton
Sourced, dated and written by us. The same ground we cover on your free call.
How long does a solar inverter last, and when does replacing it make sense?
The one component you should expect to replace, and the decision tree when it goes.
Read the guide →GivEnergy in administration: what owners should do now
The sourced timeline, the warranty position, and the owner's checklist for this month.
Read the guide →What an EV charger installation actually involves
Main fuse, DNO notification, load balancing and the paperwork. What really happens.
Read the guide →How an air source heat pump actually works
It moves heat rather than making it. The cycle, the efficiency numbers and the trade-offs.
Read the guide →What the Smart Export Guarantee actually is
The scheme obliges suppliers to pay above zero, and leaves the rate to them.
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.