Surrey
Solar panels in Horley, priced before anyone visits.
Twelve panels (6.36 kWp) here make about 6,560 kWh a year for £6,360 installed, designed around your roof on a free 30-minute video call.
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- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
How much a Horley roof makes, month by month
From 37.1 kWh per kWp in December to 127.4 in July: a roof in Horley makes 3.4 times as much in its best month as in its darkest, and 1,032 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 38.9 |
| February | 52.6 |
| March | 88.4 |
| April | 116 |
| May | 124 |
| June | 125 |
| July | 127 |
| August | 112 |
| September | 96.7 |
| October | 66.6 |
| November | 46.4 |
| December | 37.1 |
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 1,032, Horley is 12% above it.
How Horley compares
Among the places we publish figures for, Horley is one of 47 Surrey towns we track, and it ranks 8th of 47 for solar yield. It is a medium town in the House of Commons Library classification, with 29,527 residents, and its roofs see 2.83 peak sun hours a day across the year. That drives the standard 12 panel model to 6,564 kWh of generation, of which around 5,627 kWh is exported at 12p for £675 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
Every figure here assumes a clear, south-facing roof at 35 degrees. Yours will differ, which is what the free design call is for; until then, the calculator below tests panels, batteries and export rates on Horley's own yield.
Planning applications here go through Reigate and Banstead; nationally, the House of Commons Library classes Horley 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 Horley's own coordinates (51.1761, -0.167), 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.
UK Power Networks and your Horley connection
Horley sits in UK Power Networks' South East England licence area, so UK Power Networks is the network operator (DNO) any solar panels or battery here are registered with.
Below 3.68kW per phase of inverter and battery output, the G98 route applies: the installation is notified to UK Power Networks within 28 days of commissioning, with no prior approval.
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 UK Power 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.
Beyond the panels: heating and car charging in Horley
A heat pump in Horley
Heating demand peaks when solar is weakest. In Horley, a 12-panel system makes about 240 kWh in December and 250 kWh in January, a fraction of its 810 kWh in July, which is why a heat pump here is costed on its tariff first.
Grant support in England comes from the Boiler Upgrade Scheme: £7,500 for an air source or ground source heat pump, £2,500 for air-to-air, and an extra £1,500 until March 2027 where the home is heated by oil or LPG off the gas grid (gov.uk, checked 28 September 2026).
Charging an EV in Horley
Summer is where a car earns its place. In July, 12 panels in Horley make about 810 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 Horley
The same sourced benchmarks apply in Horley as everywhere we cover: honest repair pricing and what a service should include.
Solar in Horley: your questions answered
How much electricity do solar panels make in Horley?
About 6,560 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Horley: 1,032 kWh per kWp, or 2.83 peak sun hours a day on average. July is the strongest month, at about 810 kWh.
What does a typical solar system cost in Horley?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in Horley, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 6,560 kWh a year. The final figure comes from your roof on the design call.
Which DNO covers Horley, and what does it need from me?
UK Power Networks covers Horley. A home system of up to 3.68kW per phase is notified to UK Power Networks within 28 days of commissioning under G98, and nothing waits on approval. Larger outputs need a G99 application before work starts. 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 UK Power Networks as it does every network operator.
What happens to the solar I do not use in Horley?
Around £675 a year at 12p per kWh, for the roughly 5,627 kWh a 12-panel system in Horley exports with typical use. Rates vary by supplier and some need their own tariff; the export rates table is dated and sourced.
How much solar does Horley get in December?
December is the low point: about 240 kWh from a 12-panel system in Horley, on PVGIS data, rising to 810 kWh in July. From November to February the same system makes about 1,110 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Horley compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Horley.
| Town | kWh per kWp a year | vs Horley |
|---|---|---|
| Horley | 1,032 | this town |
| Redhill | 1,033 | +1 kWh |
| Crawley | 1,035 | +3 kWh |
| Reigate | 1,040 | +8 kWh |
| South Merstham | 1,029 | −3 kWh |
| East Grinstead | 1,034 | +2 kWh |
| Dorking | 1,036 | +4 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 Horley: Solar panels in Horley 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.
What solar actually costs in 2026, and where every pound goes
Around £8,677 average, £1,550 to £1,800 per kW. Where every pound actually goes.
Read the guide →Inside a home battery: capacity, power and losses
Usable capacity, kW output, round trip losses and chemistry, in plain terms.
Read the guide →How time of use charging windows actually work
How a cheap overnight window is metered and billed, and what a battery does inside it.
Read the guide →What are the disadvantages of a heat pump? Six honest ones
Six real disadvantages, worth planning around rather than a reason to rule one out.
Read the guide →EV tariffs compared: the cheapest overnight windows
Overnight rates of 6.99p to 9p against a 26.32p capped average, compared.
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.