Hertfordshire
Solar panels in Chorleywood, priced before anyone visits.
Twelve panels (6.36 kWp) here make about 6,430 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 Chorleywood roof makes, month by month
Chorleywood's best month is July, at 123.6 kWh per kWp; December manages 35.4. Over the year that comes to 1,011 kWh per kWp, 1% below our Hertfordshire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.1 |
| February | 53.2 |
| March | 88 |
| April | 113 |
| May | 120 |
| June | 122 |
| July | 124 |
| August | 111 |
| September | 95.2 |
| October | 65.6 |
| November | 45.5 |
| December | 35.4 |
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: Chorleywood makes 1,011 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Chorleywood is 9% above it.
How Chorleywood compares
Small towns rarely get published solar figures, so here are the numbers for Chorleywood. It is one of 27 Hertfordshire towns we track, and it ranks 25th of 27 for solar yield, a town of 12,896 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,011 kWh per kWp a year, 2.77 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £906 of year one benefit, £247 of it from your own generation and £659 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Chorleywood'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.
Planning applications here go through Three Rivers; nationally, the House of Commons Library classes Chorleywood 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 Chorleywood at 51.65201, -0.50314 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
UK Power Networks and your Chorleywood connection
UK Power Networks owns and runs the local electricity network in Chorleywood, as part of its East England 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: UK Power 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 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.
Adding a heat pump or an EV charger in Chorleywood
A heat pump in Chorleywood
Heating demand peaks when solar is weakest. In Chorleywood, a 12-panel system makes about 230 kWh in December and 250 kWh in January, a fraction of its 790 kWh in July, which is why a heat pump here is costed on its tariff first.
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 Chorleywood
Summer is where a car earns its place. In July, 12 panels in Chorleywood make about 790 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.
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 Chorleywood
The same sourced benchmarks apply in Chorleywood as everywhere we cover: honest repair pricing and what a service should include.
Common questions about solar in Chorleywood
How much electricity do solar panels make in Chorleywood?
About 6,430 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Chorleywood: 1,011 kWh per kWp, or 2.77 peak sun hours a day on average. July is the strongest month, at about 790 kWh.
What does a typical solar system cost in Chorleywood?
Solar is priced at £1,000 per kWp installed wherever you live, so a 12-panel, 6.36 kWp system costs £6,360 in Chorleywood, exactly as it would anywhere else, before any battery. Location changes what the system makes, not what it costs: here that is about 6,430 kWh a year. The final figure comes from your roof on the design call.
Which DNO covers Chorleywood, and what does it need from me?
UK Power Networks covers Chorleywood. 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 Chorleywood?
Around £659 a year at 12p per kWh, for the roughly 5,493 kWh a 12-panel system in Chorleywood 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 Chorleywood get in December?
December is the low point: about 230 kWh from a 12-panel system in Chorleywood, on PVGIS data, rising to 790 kWh in July. From November to February the same system makes about 1,100 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Chorleywood 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 Chorleywood |
|---|---|---|
| Chorleywood | 1,011 | this town |
| Rickmansworth | 1,019 | +8 kWh |
| Chalfont St Peter | 1,014 | +3 kWh |
| Watford | 1,013 | +2 kWh |
| Amersham | 1,009 | −2 kWh |
| Abbots Langley and Kings Langley | 1,016 | +5 kWh |
| Gerrards Cross | 1,023 | +12 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 Chorleywood: Solar panels in Chorleywood from OVO Solar & Battery
Also near Chorleywood
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 Chorleywood
Sourced, dated and written by us. The same ground we cover on your free call.
Do solar panels need direct sunlight? Not really, and here is why
No. Solar cells respond to light hitting them, not to a clear line of sight to the sun.
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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.