Essex
Solar panels in Brentwood, with the numbers shown.
A 12-panel roof in Brentwood makes about 6,670 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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Brentwood's solar year
From 37.1 kWh per kWp in December to 128 in July: a roof in Brentwood makes 3.5 times as much in its best month as in its darkest, and 1,049 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40.1 |
| February | 53.8 |
| March | 89.7 |
| April | 118 |
| May | 125 |
| June | 126 |
| July | 128 |
| August | 115 |
| September | 99.4 |
| October | 68.6 |
| November | 48.2 |
| 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.
For scale: 1,049 kWh per kWp in Brentwood against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Brentwood 13% above it.
How Brentwood compares
Among the places we publish figures for, Brentwood is one of 46 Essex towns we track, and it ranks joint 32nd of 46 for solar yield. It is a medium town in the House of Commons Library classification, with 57,013 residents, and its roofs see 2.87 peak sun hours a day across the year. That drives the standard 12 panel model to 6,672 kWh of generation, of which around 5,735 kWh is exported at 12p for £688 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 Brentwood'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.
Planning applications in Brentwood go to its own council, 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.
Generation is modelled from PVGIS satellite data for Brentwood's own coordinates (51.62467, 0.31331), 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.
Who runs the grid in Brentwood
On NESO's licence-area map, Brentwood is in East England, which UK Power Networks operates. That makes UK Power Networks the network operator for any system fitted here.
Most home systems stay within 3.68kW per phase of inverter output, which puts them on G98, a notification to UK Power Networks within 28 days of switch-on. Panel count does not decide it; the inverter and any battery do.
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.
Heat pumps and EV charging in Brentwood
A heat pump in Brentwood
A heat pump does most of its work from November to February. Over those four months, 12 panels in Brentwood make about 1,140 kWh, against 3,140 kWh from May to August, so winter heating runs mostly on grid electricity and the tariff matters more than the roof.
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 Brentwood
From April to September, 68% of a Brentwood roof's yearly output arrives, peaking at about 810 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.
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.
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 Brentwood
Faults, servicing and ageing inverters follow the same economics in Brentwood as anywhere else, and the guides below price them plainly.
Solar in Brentwood: your questions answered
What does a solar panel system produce in Brentwood?
Each kWp of panels in Brentwood makes 1,049 kWh a year on PVGIS figures, so a typical 12-panel system produces around 6,670 kWh, from about 240 kWh in December up to 810 kWh in July.
How much are solar panels in Brentwood?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Brentwood before a battery. What Brentwood changes is the return, about 6,670 kWh a year from that system, and your design call prices your actual roof.
Would a system in Brentwood need approval from the network operator?
Brentwood 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 can I earn from exporting solar in Brentwood?
With typical use and no battery, a 12-panel system in Brentwood exports about 5,735 kWh a year. At 12p per kWh that is roughly £688; a supplier paying more, or a battery that keeps more for the evening, changes the figure. See the export rates table.
Is solar worth it in Brentwood in winter?
It works, but the year is lopsided. 68% of a Brentwood roof's output lands between April and September; the four months from November to February give about 1,140 kWh on a 12-panel system. Payback is worked out on the whole year, not the winter.
How Brentwood compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Brentwood.
| Town | kWh per kWp a year | vs Brentwood |
|---|---|---|
| Brentwood | 1,049 | this town |
| Billericay | 1,062 | +13 kWh |
| Havering | 1,045 | −4 kWh |
| Basildon | 1,068 | +19 kWh |
| South Ockendon | 1,050 | +1 kWh |
| Aveley | 1,049 | level |
| Wickford | 1,069 | +20 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 Brentwood: Solar panels in Brentwood from OVO Solar & Battery
Also near Brentwood
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.
Microinverters, optimisers or a plain string inverter: who needs what
Shade and roof layout decide this. An honest triage of the three approaches.
Read the guide →Tesla Powerwall 3 vs Duracell Dura16: which fits your home?
The two packages we actually price, compared on the numbers that decide it.
Read the guide →What an EV charger installation actually involves
Main fuse, DNO notification, load balancing and the paperwork. What really happens.
Read the guide →Are heat pumps noisy? The 37 dB(A) answer, in plain terms
The 1 metre boundary rule is gone. A 37 dB(A) sound test replaced it.
Read the guide →The price cap explained, and what it does to solar payback
The cap limits unit rates, not bills. That changes what solar payback means.
Read the guide →What MCS certification actually is, and why your export payments depend on it
The badge that decides whether your solar earns export payments. It cannot be added later.
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.