Essex
Solar panels in Rayleigh, designed on a free call.
A 12-panel roof in Rayleigh makes about 6,820 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
Sunlight in Rayleigh, in numbers
From 38.8 kWh per kWp in December to 131 in July: a roof in Rayleigh makes 3.4 times as much in its best month as in its darkest, and 1,072 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 39.9 |
| February | 55.4 |
| March | 91 |
| April | 120 |
| May | 129 |
| June | 129 |
| July | 131 |
| August | 117 |
| September | 101 |
| October | 69.7 |
| November | 50 |
| December | 38.8 |
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: Rayleigh makes 1,072 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Rayleigh is 16% above it.
How Rayleigh compares
Among the places we publish figures for, Rayleigh is one of 46 Essex towns we track, and it ranks 16th of 46 for solar yield. It is a medium town in the House of Commons Library classification, with 32,313 residents, and its roofs see 2.94 peak sun hours a day across the year. That drives the standard 12 panel model to 6,818 kWh of generation, of which around 5,881 kWh is exported at 12p for £706 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 Rayleigh'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.
Any planning application in Rayleigh sits with Rochford, and its official House of Commons Library settlement class is 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 Rayleigh's own coordinates (51.58937, 0.60728), 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 Rayleigh
Rayleigh 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.
G98 is the simple route. If the inverter, plus any battery, stays at or under 3.68kW per phase, UK Power Networks only has to be told within 28 days after the system is commissioned.
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 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.
Heat pumps and EV charging in Rayleigh
A heat pump in Rayleigh
In December, the darkest month here, 12 panels in Rayleigh make about 250 kWh. That is when a heat pump runs hardest, so its running cost in Rayleigh comes down to the tariff and the flow temperature rather than the roof.
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 Rayleigh
Rayleigh's July output, about 830 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.
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 Rayleigh
The same sourced benchmarks apply in Rayleigh as everywhere we cover: honest repair pricing and what a service should include.
Rayleigh solar questions
How much electricity do solar panels make in Rayleigh?
About 6,820 kWh a year from 12 panels (6.36 kWp), on PVGIS satellite data for Rayleigh: 1,072 kWh per kWp, or 2.94 peak sun hours a day on average. July is the strongest month, at about 830 kWh.
Is solar more expensive in Rayleigh?
Prices on this site are the same everywhere: £1,000 per kWp installed, which puts a 12-panel system at £6,360 in Rayleigh, and a Duracell Dura16 installed with solar at £4,450 on top. The local part is generation, about 6,820 kWh a year here, which is what drives payback.
Which DNO covers Rayleigh, and what does it need from me?
UK Power Networks covers Rayleigh. 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 could I earn from exporting in Rayleigh?
On the 12p export scenario, a 12-panel system in Rayleigh sends about 5,881 kWh a year to the grid, worth around £706. The export rates table compares what each supplier pays.
How much solar does Rayleigh get in December?
December is the low point: about 250 kWh from a 12-panel system in Rayleigh, on PVGIS data, rising to 830 kWh in July. From November to February the same system makes about 1,170 kWh in total, which is why a battery charged off-peak does more of the work in winter.
How Rayleigh 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 Rayleigh |
|---|---|---|
| Rayleigh | 1,072 | this town |
| Thundersley and South Benfleet | 1,070 | −2 kWh |
| Hockley and Hawkwell | 1,102 | +30 kWh |
| South Woodham Ferrers | 1,088 | +16 kWh |
| Wickford | 1,069 | −3 kWh |
| Rochford | 1,088 | +16 kWh |
| Runwell | 1,070 | −2 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 Rayleigh: Solar panels in Rayleigh from OVO Solar & Battery
Also near Rayleigh
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Further reading for Rayleigh
Sourced, dated and written by us. The same ground we cover on your free call.
Aiko vs LONGi for a UK roof: Neostar 3 or Hi-MO X10?
Datasheet against datasheet, with a verdict by roof type and the warranty by series.
Read the guide →Whole home backup or partial backup? The runtime arithmetic
Whole home backup sounds obvious until you do the runtime maths. Here is how to choose the right tier.
Read the guide →Home EV charger types and speeds, explained properly
Granny cable, 7kW wall unit or 22kW three phase. What each adds per hour, and which you need.
Read the guide →What MCS certification actually buys you on a heat pump job
The gate on the £7,500 grant, the design standard behind your running costs, and the noise sign-off.
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.