solar-max
Verified Founding MemberAbout
Services
Certifications
General Contractor
Customer Reviews
No reviews yet.
Customer Reviews
Service Area
Serves within 10 km.
Will solar pay off for me?
Solar ROI Calculator
Estimate your payback & 20-year savings
Payback
20-yr net gain
€
System size
Sized to cover ~80% of annual usage
Capped at 10.8 kWp (single-phase grid limit)
Based on kWh/kWp/yr for your region · €0.20/kWh retail · €0.08/kWh net billing export · €1,300/kWp installed · 70% self-consumption. Indicative only — contact the installer for a precise quote.
How is this calculated?
Annual consumption = Monthly bill × 12 ÷ Tariff
System size = Annual consumption × 80% ÷ Local solar yield (kWh/kWp/yr) — capped at 10.8 kWp (Greek single-phase grid limit)
Self-consumed = the portion used on-site during generation hours — capped at the self-consumption % of household demand (default 70%, editable in Assumptions below).
Annual savings = (Self-consumed kWh × Tariff) + (Exported kWh × Export rate)
Payback period = System cost ÷ Annual savings
20-year net gain accounts for panel performance degradation (default 0.5%/yr, editable in Assumptions).
Assumptions used — edit to refine
Live: €/kWh · ,
Request a Quote
Your details
How should the installer contact you?