Kent
Solar panels in Dartford, sized to your roof.
A 12-panel roof in Dartford makes about 6,610 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 Dartford can generate
Dartford's best month is July, at 128.4 kWh per kWp; December manages 37.3. Over the year that comes to 1,039 kWh per kWp, 3% below our Kent county estimate.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 38.5 |
| February | 51.4 |
| March | 87.5 |
| April | 116 |
| May | 125 |
| June | 126 |
| July | 128 |
| August | 115 |
| September | 98.4 |
| October | 68.7 |
| November | 47.4 |
| December | 37.3 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
Our GB average is 925 kWh per kWp a year, the mean of the 85 county PVGIS estimates we publish; at 1,039, Dartford is 12% above it.
How Dartford compares
Dartford is one of 44 Kent towns we track, and it ranks 40th of 44 for solar yield. The House of Commons Library settlement data classes it as a large town of 72,657 people. At 1,039 kWh per kWp a year, a typical 12 panel system here pays for itself in around 6.9 years on the 12p scenario: £927 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 Dartford'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 Dartford 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.
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 Dartford's own coordinates (51.44476, 0.22302), 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 Dartford network
UK Power Networks owns and runs the local electricity network in Dartford, as part of its London licence area.
What decides the paperwork is the inverter and battery output, not the number of panels. Up to 3.68kW per phase, a system follows G98: UK Power Networks is notified within 28 days of commissioning and nothing has to be approved first.
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 Dartford
A heat pump in Dartford
Solar and a heat pump pull in opposite directions through the year: Dartford's roofs make 1,110 kWh from November to February on a 12-panel system, and 3,140 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
In England, the Boiler Upgrade Scheme pays £7,500 towards an air source or ground source heat pump and £2,500 towards an air-to-air one, with £1,500 more until March 2027 for homes heated by oil or LPG with no mains gas (gov.uk, checked 28 September 2026).
Charging an EV in Dartford
A 12-panel roof in Dartford 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.
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 Dartford
Guidance is nationwide, so the benchmarks hold in Dartford: repair costs, service scope, and when the inverter is the real fault.
Common questions about solar in Dartford
What could a roof in Dartford generate?
PVGIS puts a roof in Dartford at 1,039 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 6,610 kWh a year, most of it between April and September.
How much are solar panels in Dartford?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Dartford before a battery. What Dartford changes is the return, about 6,610 kWh a year from that system, and your design call prices your actual roof.
Do I need permission from the DNO for solar in Dartford?
Usually not in advance. UK Power Networks, the network operator for Dartford, 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 Dartford?
With typical use and no battery, a 12-panel system in Dartford exports about 5,671 kWh a year. At 12p per kWh that is roughly £681; 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 Dartford?
Yes, at a lower level. PVGIS gives Dartford 37.3 kWh per kWp in December and 38.5 in January, so a 12-panel system makes about 240 kWh and 240 kWh in those months, against 820 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Dartford compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Dartford.
| Town | kWh per kWp a year | vs Dartford |
|---|---|---|
| Dartford | 1,039 | this town |
| Swanscombe | 1,041 | +2 kWh |
| Chafford Hundred, West Thurrock and Purfleet-on-Thames | 1,052 | +13 kWh |
| Bexley | 1,042 | +3 kWh |
| Swanley | 1,033 | −6 kWh |
| Aveley | 1,049 | +10 kWh |
| Northfleet | 1,052 | +13 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 Dartford: Solar panels in Dartford from OVO Solar & Battery
Also near Dartford
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.
What a solar service costs, and how often you actually need one
MCS advises a contractor visit at year 10 on a privately owned home. Most plans sell one a year.
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Read the guide →The Boiler Upgrade Scheme, explained
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Read the guide →Which tariffs are actually built for battery charging
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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.