Surrey
Solar panels in Epsom, sized to your roof.
A 12-panel roof in Epsom makes about 6,470 kWh a year and costs £6,360 installed; a free 30-minute video call sizes it to yours.
Get my free quote
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.
or call 07782 219224
- Free 30-minute video design call
- Priced before anyone visits
- Installed by our MCS-certified, fully insured teams
What a roof in Epsom can generate
PVGIS puts Epsom at 1,018 kWh per kWp a year, level with our Surrey 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 | 37.6 |
| February | 50.8 |
| March | 87.2 |
| April | 115 |
| May | 123 |
| June | 124 |
| July | 126 |
| August | 111 |
| September | 96.2 |
| October | 66.2 |
| November | 46.4 |
| December | 35.8 |
Source: PVGIS v5.2 (European Commission JRC), SARAH3 database, 1 kWp, 14% system loss, 35 degree pitch, due south, checked September 2026.
For scale: 1,018 kWh per kWp in Epsom against 925, our GB average (the mean of our 85 county PVGIS estimates), which puts Epsom 10% above it.
How Epsom compares
Among the places we publish figures for, Epsom is one of 47 Surrey towns we track, and it ranks joint 38th of 47 for solar yield. It is a medium town in the House of Commons Library classification, with 37,210 residents, and its roofs see 2.79 peak sun hours a day across the year. That drives the standard 12 panel model to 6,474 kWh of generation, of which around 5,538 kWh is exported at 12p for £665 a year, with £247 saved on electricity you would otherwise buy at 26.32p.
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 Epsom's own yield.
Epsom sits within Epsom and Ewell, its local planning authority, 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.
The figures use PVGIS for the centre of Epsom (51.3339, -0.26987), a 26.32p/kWh import price and £1,000 per kWp installed; see the help page for the full method.
Connecting solar to the Epsom network
Epsom sits in UK Power Networks' South East England licence area, so UK Power Networks is the network operator (DNO) any solar panels or battery here are registered with.
G98 is the simple route. If the inverter, plus any battery, stays at or under 3.68kW per phase, UK Power Networks only has to be told within 28 days after the system is commissioned.
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.
Beyond the panels: heating and car charging in Epsom
A heat pump in Epsom
Solar and a heat pump pull in opposite directions through the year: Epsom's roofs make 1,090 kWh from November to February on a 12-panel system, and 3,070 kWh from May to August. The heating season leans on the grid, so off-peak rates do the heavy lifting.
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 Epsom
A 12-panel roof in Epsom 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.
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).
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 Epsom
Guidance is nationwide, so the benchmarks hold in Epsom: repair costs, service scope, and when the inverter is the real fault.
Solar in Epsom: your questions answered
What could a roof in Epsom generate?
PVGIS puts a roof in Epsom at 1,018 kWh per kWp a year, 2.79 peak sun hours a day averaged across the seasons. A 12-panel, 6.36 kWp system makes about 6,470 kWh a year, most of it between April and September.
How much are solar panels in Epsom?
The price does not move by postcode. At £1,000 per kWp installed, 12 panels (6.36 kWp) come to £6,360 in Epsom before a battery. What Epsom changes is the return, about 6,470 kWh a year from that system, and your design call prices your actual roof.
Do I need permission from the DNO for solar in Epsom?
Usually not in advance. UK Power Networks, the network operator for Epsom, 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 Epsom?
With typical use and no battery, a 12-panel system in Epsom exports about 5,538 kWh a year. At 12p per kWh that is roughly £665; 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 Epsom?
Yes, at a lower level. PVGIS gives Epsom 35.8 kWh per kWp in December and 37.6 in January, so a 12-panel system makes about 230 kWh and 240 kWh in those months, against 800 kWh in July. Winter output mostly covers daytime use rather than exporting.
How Epsom 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 Epsom |
|---|---|---|
| Epsom | 1,018 | this town |
| Ewell | 1,017 | −1 kWh |
| Ashtead | 1,019 | +1 kWh |
| Worcester Park and Stoneleigh | 1,017 | −1 kWh |
| Tadworth and Epsom Downs | 1,019 | +1 kWh |
| Banstead | 1,016 | −2 kWh |
| Leatherhead | 1,030 | +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 Epsom: Solar panels in Epsom 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.
Further reading for Epsom
Sourced, dated and written by us. The same ground we cover on your free call.
Why solar panels stop working, and how to work out which one it is
There is an order to this, and it starts at the inverter display rather than the roof.
Read the guide →Does a standalone battery actually pay back?
No panels means one job: buy cheap, use later. The tariff decides whether it pays.
Read the guide →Home EV charger types and speeds, explained properly
Granny cable, 7kW wall unit or 22kW three phase. What each adds per hour, and which you need.
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 →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 →MCS, HIES, RECC, NAPIT, TrustMark and Flexi-Orb: which badge does what
Six logos, six different jobs. What each scheme covers, and which are actually required.
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.