Buckinghamshire
Solar panels in Marlow, sized to your roof.
About 6,530 kWh a year from 12 panels in Marlow, £6,360 installed, with your system designed on a free 30-minute video call.
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What a roof in Marlow can generate
PVGIS puts Marlow at 1,026 kWh per kWp a year, 3% above our Buckinghamshire county estimate. 68% of it arrives between April and September, peaking in July.
Generation per kWp, month by month
Show the monthly figures
| Month | kWh/kWp |
|---|---|
| January | 40.5 |
| February | 53.3 |
| March | 88.6 |
| April | 115 |
| May | 123 |
| June | 124 |
| July | 125 |
| August | 112 |
| September | 96.2 |
| October | 67 |
| November | 45.9 |
| December | 36.1 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,026 kWh per kWp in Marlow against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Marlow 11% above it.
How Marlow compares
Small towns rarely get published solar figures, so here are the numbers for Marlow. It is one of 19 Buckinghamshire towns we track, and it ranks 2nd of 19 for solar yield, a town of 14,761 people in the House of Commons Library settlement data. PVGIS gives its roofs 1,026 kWh per kWp a year, 2.81 peak sun hours a day averaged across the seasons, and the standard 12 panel model turns that into £918 of year one benefit, £247 of it from your own generation and £671 from export at 12p.
Every figure here assumes a clear, south-facing roof at 35 degrees. Yours will differ, which is what the free design call is for; until then, the calculator below tests panels, batteries and export rates on Marlow's own yield.
Marlow sits within Buckinghamshire, 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.
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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.
Generation is modelled from PVGIS satellite data for Marlow's own coordinates (51.57368, -0.77479), 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 Marlow network
Marlow is served by Scottish and Southern Electricity Networks (SSEN): the town's centre falls inside its Southern England licence area on NESO's boundary map.
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: SSEN is notified within 28 days of commissioning and nothing has to be approved first.
Anything bigger is a G99 case and is applied for first. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW.
Sources: NESO DNO licence areas (3 May 2024); SSEN, micro-generation connections page, checked 25 September 2026. G98 vs G99, explained.
Beyond the panels: heating and car charging in Marlow
A heat pump in Marlow
Solar and a heat pump pull in opposite directions through the year: Marlow's roofs make 1,120 kWh from November to February on a 12-panel system, and 3,080 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 Marlow
A 12-panel roof in Marlow makes about 800 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.
The packages, priced before anyone visits
Every system is designed around your roof on the free call before anything is fitted.
Solar panel servicing and repair in Marlow
Guidance is nationwide, so the benchmarks hold in Marlow: repair costs, service scope, and when the inverter is the real fault.
Solar in Marlow: your questions answered
What could a roof in Marlow generate?
PVGIS puts a roof in Marlow at 1,026 kWh per kWp a year, 2.81 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,530 kWh a year, most of it between April and September.
What would 12 solar panels cost in Marlow?
£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 Marlow differs is output: about 6,530 kWh a year from that system.
Do I need permission from the DNO for solar in Marlow?
Usually not in advance. SSEN, the network operator for Marlow, 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. SSEN says it can take up to 45 working days to issue a quotation for a generation connection above 3.68kW per phase and up to 50kW. "See our DNO explainer.
How much would export pay on a system in Marlow?
It is exported. With typical use and no battery, about 5,589 kWh of the 6,530 kWh a 12-panel system makes in Marlow goes to the grid, around £671 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 Marlow?
Yes, at a lower level. PVGIS gives Marlow 36.1 kWh per kWp in December and 40.5 in January, so a 12-panel system makes about 230 kWh and 260 kWh in those months, against 800 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Marlow compares with its neighbours
The six closest towns we publish, run through the identical PVGIS query as Marlow.
| Town | kWh per kWp a year | vs Marlow |
|---|---|---|
| Marlow | 1,026 | this town |
| Flackwell Heath and Wooburn Green | 1,009 | −17 kWh |
| High Wycombe | 1,012 | −14 kWh |
| Maidenhead | 1,027 | +1 kWh |
| Beaconsfield | 1,011 | −15 kWh |
| Hazlemere | 1,011 | −15 kWh |
| Henley-on-Thames | 1,019 | −7 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 Marlow: Solar panels in Marlow from OVO Solar & Battery
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.
How do solar panels work? The full explanation, from photon to plug socket
Light into silicon, DC into AC, AC into your bill. The whole chain, explained.
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 →What an EV charger installation actually involves
Main fuse, DNO notification, load balancing and the paperwork. What really happens.
Read the guide →The Boiler Upgrade Scheme, explained
A fixed amount, claimed on your behalf by our installation teams, with a real deadline on the £9,000 version.
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 →How to check an MCS certificate is genuine, before the deposit leaves your account
A logo proves nothing. Certification is business specific, technology specific and checkable.
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.