Kent
Solar panels in Swanscombe, sized to your roof.
A 12-panel roof in Swanscombe makes about 6,620 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
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What a roof in Swanscombe can generate
From 37.1 kWh per kWp in December to 128.8 in July: a roof in Swanscombe makes 3.5 times as much in its best month as in its darkest, and 1,041 kWh per kWp across the year.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 38.6 |
| February | 51.5 |
| March | 87.2 |
| April | 117 |
| May | 125 |
| June | 126 |
| July | 129 |
| August | 115 |
| September | 99.2 |
| October | 68.7 |
| 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: 1,041 kWh per kWp in Swanscombe against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Swanscombe 13% above it.
How Swanscombe compares
Small towns rarely get published solar figures, so here are the numbers for Swanscombe. It is one of 44 Kent towns we track, and it ranks 39th of 44 for solar yield, a town of 16,899 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,041 kWh per kWp a year, 2.85 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £929 of year one benefit, £247 of it from your own generation and £682 from export at 12p.
These are starting numbers, not a quote. The calculator below opens on Swanscombe'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.
Swanscombe sits within Dartford, its local planning authority, and the House of Commons Library classes it as a small 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 Swanscombe at 51.44831, 0.2931 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 Swanscombe network
On NESO's licence-area map, Swanscombe is in South East England, which UK Power Networks operates. That makes UK Power Networks the network operator for any system fitted here.
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.
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 Swanscombe
A heat pump in Swanscombe
Solar and a heat pump pull in opposite directions through the year: Swanscombe's roofs make 1,120 kWh from November to February on a 12-panel system, and 3,150 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 Swanscombe
A 12-panel roof in Swanscombe makes about 820 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.
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.
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 Swanscombe
Guidance is nationwide, so the benchmarks hold in Swanscombe: repair costs, service scope, and when the inverter is the real fault.
Common questions about solar in Swanscombe
What could a roof in Swanscombe generate?
PVGIS puts a roof in Swanscombe at 1,041 kWh per kWp a year, 2.85 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,620 kWh a year, most of it between April and September.
What would 12 solar panels cost in Swanscombe?
£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 Swanscombe differs is output: about 6,620 kWh a year from that system.
Do I need permission from the DNO for solar in Swanscombe?
Usually not in advance. UK Power Networks, the network operator for Swanscombe, 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 would export pay on a system in Swanscombe?
It is exported. With typical use and no battery, about 5,684 kWh of the 6,620 kWh a 12-panel system makes in Swanscombe goes to the grid, around £682 a year at 12p. A battery keeps more of it for the evening; the export rates table shows what suppliers pay.
Do solar panels work in winter in Swanscombe?
Yes, at a lower level. PVGIS gives Swanscombe 37.1 kWh per kWp in December and 38.6 in January, so a 12-panel system makes about 240 kWh and 250 kWh in those months, against 820 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Swanscombe 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 Swanscombe |
|---|---|---|
| Swanscombe | 1,041 | this town |
| Northfleet | 1,052 | +11 kWh |
| Chafford Hundred, West Thurrock and Purfleet-on-Thames | 1,052 | +11 kWh |
| Tilbury | 1,057 | +16 kWh |
| Dartford | 1,039 | −2 kWh |
| Grays | 1,055 | +14 kWh |
| Gravesend | 1,053 | +12 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 Swanscombe: Solar panels in Swanscombe from OVO Solar & Battery
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Answer a few questions about your roof and usage and see an instant solar and battery estimate. No email needed to see the result.
Further reading for Swanscombe
Sourced, dated and written by us. The same ground we cover on your free call.
East, west or south facing: what your roof direction really costs you
An east west split gives up about a fifth of the annual total, and can still be worth more than south.
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 →What an EV charger installation actually involves
Main fuse, DNO notification, load balancing and the paperwork. What really happens.
Read the guide →How an air source heat pump actually works
It moves heat rather than making it. The cycle, the efficiency numbers and the trade-offs.
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 →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.