Hertfordshire
Solar panels in Rickmansworth, sized to your roof.
About 6,480 kWh a year from 12 panels in Rickmansworth, £6,360 installed, with your system designed 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
What a roof in Rickmansworth can generate
Rickmansworth's best month is July, at 124.4 kWh per kWp; December manages 36.2. Over the year that comes to 1,019 kWh per kWp, level with our Hertfordshire county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.5 |
| February | 54.3 |
| March | 88.3 |
| April | 114 |
| May | 122 |
| June | 123 |
| July | 124 |
| August | 110 |
| September | 95.2 |
| October | 66.3 |
| November | 46 |
| December | 36.2 |
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 1,019, Rickmansworth is 10% above it.
How Rickmansworth compares
Among the places we publish figures for, Rickmansworth is one of 27 Hertfordshire towns we track, and it ranks joint 12th of 27 for solar yield. It is a medium town in the House of Commons Library classification, with 26,504 residents, and its roofs see 2.79 peak sun hours a day across the year. That drives the standard 12 panel model to 6,481 kWh of generation, of which around 5,544 kWh is exported at 12p for £665 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
These are starting numbers, not a quote. The calculator below opens on Rickmansworth'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.
Rickmansworth sits within Three Rivers, its local planning authority, and the House of Commons Library classes it 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.
Modelled for Rickmansworth at 51.64387, -0.46361 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 Rickmansworth network
Rickmansworth sits in UK Power Networks' 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.
Anything bigger is a G99 case and is applied for 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 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 Rickmansworth
A heat pump in Rickmansworth
Solar and a heat pump pull in opposite directions through the year: Rickmansworth's roofs make 1,120 kWh from November to February on a 12-panel system, and 3,050 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
The Boiler Upgrade Scheme, open in England and Wales, takes £7,500 off an air source or ground source heat pump, or £2,500 off an air-to-air unit. Homes on oil or LPG with no mains gas get £1,500 more until March 2027 (gov.uk, checked 28 September 2026).
Charging an EV in Rickmansworth
A 12-panel roof in Rickmansworth makes about 790 kWh in July. 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.
The calculator above includes a 7.4kW smart charger from £1,100 installed. Renters and flat owners with off-street parking can claim 75% of a chargepoint's cost, up to £500 per socket, until 31 March 2027 (gov.uk, checked 28 September 2026).
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 Rickmansworth
Guidance is nationwide, so the benchmarks hold in Rickmansworth: repair costs, service scope, and when the inverter is the real fault.
Rickmansworth solar questions
What could a roof in Rickmansworth generate?
PVGIS puts a roof in Rickmansworth at 1,019 kWh per kWp a year, 2.79 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,480 kWh a year, most of it between April and September.
How much are solar panels in Rickmansworth?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Rickmansworth before a battery. What Rickmansworth changes is the return, about 6,480 kWh a year from that system, and your design call prices your actual roof.
Do I need permission from the DNO for solar in Rickmansworth?
Usually not in advance. UK Power Networks, the network operator for Rickmansworth, 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. 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. "See our DNO explainer.
How much can I earn from exporting solar in Rickmansworth?
With typical use and no battery, a 12-panel system in Rickmansworth exports about 5,544 kWh a year. At 12p per kWh that is roughly £665; a supplier paying more, or a battery that keeps more for the evening, changes the figure. See the export rates table.
Do solar panels work in winter in Rickmansworth?
Yes, at a lower level. PVGIS gives Rickmansworth 36.2 kWh per kWp in December and 39.5 in January, so a 12-panel system makes about 230 kWh and 250 kWh in those months, against 790 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Rickmansworth compares with its neighbours
How the towns nearest Rickmansworth compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Rickmansworth |
|---|---|---|
| Rickmansworth | 1,019 | this town |
| Chorleywood | 1,011 | −8 kWh |
| Watford | 1,013 | −6 kWh |
| Bushey | 1,024 | +5 kWh |
| Abbots Langley and Kings Langley | 1,016 | −3 kWh |
| Chalfont St Peter | 1,014 | −5 kWh |
| Gerrards Cross | 1,023 | +4 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 Rickmansworth: Solar panels in Rickmansworth 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.
Reading for Rickmansworth homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
What a solar service costs, and how often you actually need one
MCS advises a contractor visit at year 10 on a privately owned home. Most plans sell one a year.
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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.