Photovoltaic Cost 2026 Greece – Complete Guide to Performance & Payback
19/04/2026
"How much do they cost?" is the first question every homeowner asks. Here you will find the answer with real numbers for 2026.
Cost per system size
| Power | Without battery | With 10kWh battery | Payback period |
|---|---|---|---|
| 3 kW | €3,500 – €5,000 | €7,000 – €9,000 | 4–5 years |
| 5 kW | €5,500 – €8,000 | €10,000 – €14,000 | 5–6 years |
| 10 kW | €9,000 – €13,000 | €16,000 – €22,000 | 6–8 years |
What affects the price?
- Equipment: Longi Panels vs no-name — 20-30% difference in efficiency
- Inverter: Victron MultiPlus-II vs unknown brand — 10 years difference in lifespan
- Batteries: Pytes LiFePO4 vs AGM — 3× longer lifespan
- Location: Athens vs Thessaloniki — 5-8% difference in performance
Payback calculation example
Consumption: 6,000 kWh/year | Bill: €150/month | System: 5kW with Net Metering
| Without photovoltaics | With photovoltaics | |
|---|---|---|
| Monthly cost | €150 | €18 |
| Annual savings | — | €1,584 |
| Payback period | — | ~4 years |
| 20-year profit | — | ~€25,000 |
FAQ
Is there a subsidy in 2026?
Yes, the "Exoikonomo" program covers up to 40% of the cost for residences.
Does the cost include installation?
Yes, prices include panels, inverter, installation, and VAT.
How long do solar panels last?
25+ years with a performance guarantee. The MPPT controller and inverter have a 10-year warranty.