Kent
Solar panels in Bromley, sized to your roof.
About 6,510 kWh a year from 12 panels in Bromley, £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 Bromley can generate
Bromley's best month is July, at 127 kWh per kWp; December manages 36.2. Over the year that comes to 1,023 kWh per kWp, 5% below our Kent county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 37.5 |
| February | 50.4 |
| March | 87.3 |
| April | 115 |
| May | 124 |
| June | 124 |
| July | 127 |
| August | 112 |
| September | 96.4 |
| October | 67.1 |
| November | 45.9 |
| 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.
Against Great Britain as a whole: Bromley makes 1,023 kWh per kWp a year, and the mean of our 85 county PVGIS estimates (our GB average) is 925, so Bromley is 11% above it.
How Bromley compares
Bromley is one of 44 Kent towns we track, and it ranks 44th of 44 for solar yield. The House of Commons Library settlement classification puts it in the core city class, with a population of 329,925, which makes it one of the largest places we publish figures for. Scale changes nothing about the physics: PVGIS gives a roof here 1,023 kWh per kWp a year, 2.80 peak sun hours a day averaged across the seasons, and on the 12p scenario about £247 of the year one benefit comes from solar you use yourself, with export income adding £668.
Treat these as calibration rather than a quote. The calculator below runs the same model, opened on Bromley'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 Bromley go to its own council, and the House of Commons Library classes it as a core city.
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 Bromley's own coordinates (51.38533, 0.03704), 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.
Connecting solar to the Bromley network
On NESO's licence-area map, Bromley is in London, 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.
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.
Heat pumps and EV charging in Bromley
A heat pump in Bromley
Solar and a heat pump pull in opposite directions through the year: Bromley's roofs make 1,080 kWh from November to February on a 12-panel system, and 3,100 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 Bromley
A 12-panel roof in Bromley makes about 810 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).
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 Bromley
Guidance is nationwide, so the benchmarks hold in Bromley: repair costs, service scope, and when the inverter is the real fault.
Bromley solar questions
What could a roof in Bromley generate?
PVGIS puts a roof in Bromley at 1,023 kWh per kWp a year, 2.80 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,510 kWh a year, most of it between April and September.
How much are solar panels in Bromley?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Bromley before a battery. What Bromley changes is the return, about 6,510 kWh a year from that system, and your design call prices your actual roof.
Do I need permission from the DNO for solar in Bromley?
Usually not in advance. UK Power Networks, the network operator for Bromley, 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 Bromley?
With typical use and no battery, a 12-panel system in Bromley exports about 5,570 kWh a year. At 12p per kWh that is roughly £668; 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 Bromley?
Yes, at a lower level. PVGIS gives Bromley 36.2 kWh per kWp in December and 37.5 in January, so a 12-panel system makes about 230 kWh and 240 kWh in those months, against 810 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Bromley compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Bromley.
| Town | kWh per kWp a year | vs Bromley |
|---|---|---|
| Bromley | 1,023 | this town |
| Lewisham | 1,026 | +3 kWh |
| Croydon | 1,015 | −8 kWh |
| Swanley | 1,033 | +10 kWh |
| Greenwich | 1,036 | +13 kWh |
| Bexley | 1,042 | +19 kWh |
| Warlingham | 1,017 | −6 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 Bromley: Solar panels in Bromley from OVO Solar & Battery
Also near Bromley
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.
Solar panel grants and funding in 2026: what actually exists, and what is a sales pitch
No blanket grant exists, and the four supports that do exist are better than most of the adverts.
Read the guide →How much a battery saves by charging on cheap night rates
What charging at 8.5p and using at 26.32p is actually worth over a year.
Read the guide →The main home EV chargers, compared on what actually differs
Eight popular UK home chargers on cable, connectivity, warranty and tariff integration.
Read the guide →Which homes suit a heat pump, and which need work first
The trial data says no property type is unsuitable. Design quality decides the outcome.
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 →Your MCS certificate: what it shows, when it arrives, and how a Smart Export Guarantee supplier uses it
The document your export payments hang on. Who issues it, what it shows, and how to get a copy.
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.