Is your solar kit worth it, and how soon?

Work out the payback time of a solar panel + power station kit: investment, annual savings, net gain over 10 years.

Work out the payback time of a solar panel + power station kit: investment, annual savings, net gain over 10 years.

Is your solar kit worth it?
The real payback time of a solar panel and a power station, before you reach for your card.

💰 Your solar kit

How long before a panel and a station pay for themselves in electricity you no longer buy? Pick a panel and a station from our catalogue, or enter your own figures.

Your location
Brittany, Normandy, 3.4 kWh/m²/dayParis region, northern France, 3.4 kWh/m²/dayRhône valley, 3.9 kWh/m²/daySouth-west France, Atlantic coast, 3.9 kWh/m²/dayProvence, French Riviera, 4.6 kWh/m²/dayAlps, 3.9 kWh/m²/daySouthern England, 3.0 kWh/m²/dayScotland, northern UK, 2.6 kWh/m²/dayNorthern Germany, 3.1 kWh/m²/dayBavaria, southern Germany, 3.4 kWh/m²/dayNorthern Italy, 4.1 kWh/m²/dayCentral Italy, 4.5 kWh/m²/daySicily, southern Italy, 4.8 kWh/m²/dayCentral Spain, 4.9 kWh/m²/dayCatalonia, Mediterranean coast, 4.6 kWh/m²/dayAndalusia, 5.2 kWh/m²/dayPortugal, 4.9 kWh/m²/dayScandinavia, 2.8 kWh/m²/dayMorocco, North Africa, 5.7 kWh/m²/day
08 kWh/m²/day
Southern England3.0 kWh/m²/day
kWh/m²/day
£/kWh

Click a dot on the map to change location. The colour shows the average sunlight over the year. With a keyboard, the arrow keys move from one region to the next.

Total investment
£2,310.00
Estimated annual savings
£320.21
Payback time
7.2 years
Net balance over 10 years
£892.13

Estimate: daily output = total power (Wp) × equivalent sun hours × 0.70 (the yield used for a nomadic panel, poorly angled and without solar tracking, outside the scope of an optimised fixed installation). Sun hours and the electricity price are market averages, to be adjusted to your region and supplier. Calculation horizon fixed at 10 years.

Sunlight: horizontal irradiation measured by PVGIS (European Commission, 2016-2020 average). Electricity price: readings taken on 28 August 2026 (suppliers and national regulators).

💡

With a single panel, only 10.8% of catalogue combinations pay back within 10 years. That climbs to 20.7% with 2 panels, 29.3% with 3, and 35.4% with 4: scaling up spreads the station's fixed price further.

Ready-made profitable pairs

A selection of well-rated panels and stations (4.0/5 or above), physically compatible (solar input respected) and profitable within 10 years.

Panel Qty Station Payback
Fossibot SP400 ProFossibot SP400 Pro×4Pecron E3600LFPPecron E3600LFP7.2 yearsPre-fill
Fossibot SP400 ProFossibot SP400 Pro×4Pecron E3800LFPPecron E3800LFP7.9 yearsPre-fill
Renogy 100W Rigid PanelRenogy 100W Rigid Panel×2EcoFlow River 3 PlusEcoFlow River 3 Plus8.8 yearsPre-fill
Renogy 100W Rigid PanelRenogy 100W Rigid Panel×3DJI Power 500DJI Power 5009.1 yearsPre-fill
Sunology PLAY 425WSunology PLAY 425W×4Pecron E3600LFPPecron E3600LFP9.2 yearsPre-fill
Renogy Lightweight solar suitcase 400WRenogy Lightweight solar suitcase 400W×2Bluetti Elite 100 V2Bluetti Elite 100 V29.6 yearsPre-fill
Renogy Lightweight solar suitcase 400WRenogy Lightweight solar suitcase 400W×2Segway Cube 1000Segway Cube 10009.7 yearsPre-fill
Sunology PLAY 425WSunology PLAY 425W×4Pecron E3800LFPPecron E3800LFP9.9 yearsPre-fill