Cost of Photovoltaics in Greece 2026
18/04/2026
"How much does it actually cost?" — this is the question every homeowner asks. Here you will find the answer with numbers and real-world examples.
Cost Table 2026
| Power | Type | Cost | Annual Savings | Payback Period |
|---|---|---|---|---|
| 3 kW | On-grid | €4,500–€6,000 | ~€900 | 5–6 years |
| 5 kW | On-grid | €6,500–€8,500 | ~€1,400 | 4–5 years |
| 5 kW + battery | Hybrid | €9,000–€13,000 | ~€1,700 | 6–7 years |
| 10 kW | On-grid | €12,000–€16,000 | ~€2,500 | 5–6 years |
| 5 kW | Off-grid | €10,000–€15,000 | — | 6–8 years |
Real-life example
Kostas in Athens was paying €1,800/year to DEI (Public Power Corporation). He installed a 3kW system with Longi panels and a Victron MPPT. Cost: €5,000. Annual savings: €900. Payback period: 5.5 years. 20-year profit: ~€13,000.
💡 Tip: Don't just compare installation prices. Compare the annual savings and the 20-year profit. That's where you see the truth.
Hidden costs to watch out for
- Installation study and mounting bases
- Inverter maintenance (1-2 times/year)
- Battery replacement after 10+ years (if AGM)
- Installation insurance
FAQ
Does the cost include installation?
Yes, prices include panels, inverter, installation, and VAT.
Is there a subsidy in 2026?
Yes! Up to 40% for individuals (Exoikonomo), up to 50% for businesses (ESPA).
How long do photovoltaics last?
Panels 25+ years, inverter 10 years. After payback: almost free electricity for 15-20 years.