Lancashire
Solar panels in Farnworth, designed on a free call.
A 12-panel roof in Farnworth makes about 5,840 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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How much a Farnworth roof makes, month by month
PVGIS puts Farnworth at 918 kWh per kWp a year, 6% above our Lancashire county estimate. 69% of it arrives between April and September, peaking in May.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 28.4 |
| February | 48.1 |
| March | 80.7 |
| April | 107 |
| May | 120 |
| June | 113 |
| July | 113 |
| August | 101 |
| September | 84.4 |
| October | 56.7 |
| November | 38 |
| December | 28.3 |
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 918, Farnworth is 1% below it.
How Farnworth compares
Among the places we publish figures for, Farnworth is one of 109 Lancashire towns we track, and it ranks joint 49th of 109 for solar yield. It is a medium town in the House of Commons Library classification, with 31,157 residents, and its roofs see 2.51 peak sun hours a day across the year. That drives the standard 12 panel model to 5,838 kWh of generation, of which around 4,902 kWh is exported at 12p for £588 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Farnworth'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 Bolton; nationally, the House of Commons Library classes Farnworth as a medium 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.
Generation is modelled from PVGIS satellite data for Farnworth's own coordinates (53.54836, -2.41009), using the same 26.32p/kWh import value and £1,000 per kWp installed pricing as every Clearline estimate; the methodology is on our help page.
The network operator for Farnworth
Electricity North West owns and runs the local electricity network in Farnworth, as part of its North West England licence area.
For a typical home the paperwork is light: a system of up to 3.68kW per phase goes through G98, which means Electricity North West 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 Electricity North West 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 Farnworth
A heat pump in Farnworth
In December, the darkest month here, 12 panels in Farnworth make about 180 kWh. That is when a heat pump runs hardest, so its running cost in Farnworth comes down to the tariff and the flow temperature rather than the roof.
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 Farnworth
Farnworth'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.
Renters and flat owners with private off-street parking can get 75% off a chargepoint and its installation, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026). The calculator above adds a 7.4kW smart charger from £1,100 installed.
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 Farnworth
If a system in Farnworth is underperforming, start with the guides below: repair benchmarks, service scope, and the inverter question.
Solar in Farnworth: your questions answered
How much energy would 12 solar panels make in Farnworth?
Farnworth averages 2.51 peak sun hours a day, which PVGIS turns into 918 kWh per kWp a year. On a 12-panel, 6.36 kWp roof that is about 5,840 kWh, 69% of it between April and September.
Is solar more expensive in Farnworth?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Farnworth, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 5,840 kWh a year here, which is what drives payback.
Who is the network operator in Farnworth, and do I need a G99 application?
The operator is Electricity North West. 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 Electricity North West as it does every network operator. Your design call checks which route yours needs.
What could I earn from exporting in Farnworth?
On the 12p export scenario, a 12-panel system in Farnworth sends about 4,902 kWh a year to the grid, worth around £588. The export rates table compares what each supplier pays.
How does solar perform in Farnworth in the winter months?
December is the weakest month in Farnworth: about 180 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 Farnworth compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Farnworth.
| Town | kWh per kWp a year | vs Farnworth |
|---|---|---|
| Farnworth | 918 | this town |
| Little Hulton | 918 | level |
| Kearsley | 906 | −12 kWh |
| Little Lever | 900 | −18 kWh |
| Walkden | 917 | −1 kWh |
| Bolton | 902 | −16 kWh |
| Worsley | 909 | −9 kWh |
Same PVGIS v5.2 query for every town. Small differences are within year-to-year weather; more than about 30 kWh per kWp apart is geography.
Also for Farnworth: Solar panels in Farnworth from OVO Solar & Battery
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Further reading for Farnworth
Sourced, dated and written by us. The same ground we cover on your free call.
Why your inverter is smaller than your panel array, and why that is correct
More panel capacity than inverter capacity is a deliberate design choice.
Read the guide →Tesla Powerwall 3 vs Duracell Dura16: which fits your home?
The two packages we actually price, compared on the numbers that decide it.
Read the guide →Three phase and EV charging: what actually changes
Three phase buys 22kW charging. Most cars cannot use it, and load balancing usually solves the real problem.
Read the guide →Are heat pumps worth it? The real 2026 numbers
Electricity costs 3.3x gas per kWh. A heat pump is about 3x as efficient. The numbers nearly cancel out.
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 →MCS, HIES, RECC, NAPIT, TrustMark and Flexi-Orb: which badge does what
Six logos, six different jobs. What each scheme covers, and which are actually required.
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.