Solar panels in Basildon, with the numbers shown.
About 6,790 kWh a year from 12 panels in Basildon, £6,360 installed, with your system designed on a free 30-minute video call.
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Basildon's solar year
Basildon's best month is July, at 129.9 kWh per kWp; December manages 38.5. Over the year that comes to 1,068 kWh per kWp, 1% above our Essex county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40 |
| February | 54.5 |
| March | 90.8 |
| April | 120 |
| May | 128 |
| June | 129 |
| July | 130 |
| August | 117 |
| September | 101 |
| October | 70 |
| November | 49.9 |
| December | 38.5 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,068 kWh per kWp in Basildon against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Basildon 15% above it.
How Basildon compares
Basildon is one of 46 Essex towns we track, and it ranks 20th of 46 for solar yield. The House of Commons Library settlement data classes it as a large town of 120,541 people. At 1,068 kWh per kWp a year, a typical 12 panel system here pays for itself in around 6.7 years on the 12p scenario: £949 of year one benefit against £6,360 installed, £247 of that benefit from cutting 26.32p imports with your own generation.
These are starting numbers, not a quote. The calculator below opens on Basildon'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 in Basildon go to its own council, and the House of Commons Library classes it as a large 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.
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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 Basildon at 51.57414, 0.46045 on PVGIS data, with imports valued at 26.32p/kWh and solar at £1,000 per kWp installed. Sources and assumptions: help page.
Who runs the grid in Basildon
The distribution network operator (DNO) for Basildon is UK Power Networks, which runs the East England licence area.
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.
A bigger inverter or battery output needs a G99 application in advance. 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 Basildon
A heat pump in Basildon
A heat pump does most of its work from November to February. Over those four months, 12 panels in Basildon make about 1,160 kWh, against 3,210 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more 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 Basildon
From April to September, 68% of a Basildon roof's yearly output arrives, peaking at about 830 kWh in July on 12 panels. A car parked at home in daylight can soak up what the house, at around 70 kWh of daytime use that month, cannot.
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).
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 Basildon
Faults, servicing and ageing inverters follow the same economics in Basildon as anywhere else, and the guides below price them plainly.
Common questions about solar in Basildon
What does a solar panel system produce in Basildon?
Each kWp of panels in Basildon makes 1,068 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,790 kWh, from about 240 kWh in December up to 830 kWh in July.
What would 12 solar panels cost in Basildon?
£6,360 for 12 panels (6.36 kWp), the same as in every other place we cover, because solar is priced at £1,000 per kWp installed rather than by area. A battery adds its own installed price on top. Where Basildon differs is output: about 6,790 kWh a year from that system.
Would a system in Basildon need approval from the network operator?
Basildon is on UK Power Networks' network (East England licence area). Systems up to 3.68kW per phase of inverter output follow G98: UK Power Networks is notified within 28 days of commissioning, with no approval needed first. Anything larger needs a G99 application before installation. 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. Our G98 vs G99 guide explains both routes.
How much would export pay on a system in Basildon?
It is exported. With typical use and no battery, about 5,856 kWh of the 6,790 kWh a 12-panel system makes in Basildon goes to the grid, around £703 a year at 12p. A battery keeps more of it for the evening; the export rates table shows what suppliers pay.
Is solar worth it in Basildon in winter?
It works, but the year is lopsided. 68% of a Basildon roof's output lands between April and September; the four months from November to February give about 1,160 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Basildon compares with its neighbours
How the towns nearest Basildon compare on the same PVGIS settings, closest first.
| Town | kWh per kWp a year | vs Basildon |
|---|---|---|
| Basildon | 1,068 | this town |
| Wickford | 1,069 | +1 kWh |
| Stanford-le-Hope | 1,074 | +6 kWh |
| Billericay | 1,062 | −6 kWh |
| Runwell | 1,070 | +2 kWh |
| Thundersley and South Benfleet | 1,070 | +2 kWh |
| Canvey Island | 1,079 | +11 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 Basildon: Solar panels in Basildon from OVO Solar & Battery
Also near Basildon
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Reading for Basildon homeowners
Sourced, dated and written by us. The same ground we cover on your free call.
How to clean solar panels, and whether you need to at all
Cleaning is oversold and pigeon mesh is undersold. The numbers behind both.
Read the guide →Sigenergy SigenStor review: the 5-in-1 tower examined
The 5-in-1 tower reviewed by a site that does not sell it, warranty arithmetic included.
Read the guide →Charging an EV from your own solar
Every surplus kWh is 3.6 to 5 miles. Whether that beats a 7p overnight rate is arithmetic.
Read the guide →Are air source heat pumps any good? What owners actually report
The UK's largest survey found 80% of heat pump owners satisfied, against 70% for gas boilers.
Read the guide →What the Smart Export Guarantee actually is
The scheme obliges suppliers to pay above zero, and leaves the rate to them.
Read the guide →HIES explained: what the badge actually protects, and when
What HIES protects: deposits up to 25 percent capped at 5,000 pounds, and your workmanship guarantee.
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.