Data Disclaimer
Last updated: March 2026
Data Sources
Data from EU PVGIS (Photovoltaic Geographical Information System) by the Joint Research Centre of the European Commission. Electricity prices from Eurostat.
Solar Production Estimates
Solar output values are model estimates based on satellite-derived solar radiation data and PV system performance models. These are long-term annual averages and do not represent real-time measurements. Actual solar panel output depends on many factors including panel orientation, shading, equipment quality, degradation, and local weather conditions.
Electricity Prices
Electricity prices are country-level averages from Eurostat and may not reflect your actual tariff. Installation cost estimates are approximate country-level averages. Your actual costs will depend on system size, installer, equipment, and local market conditions.
Limitations
Annual averages may not reflect current conditions. Model estimates can differ from real-world performance. Savings calculations are simplified and do not account for feed-in tariffs, battery storage, self-consumption ratios, or changes in electricity prices over time.
Not a Substitute for Professional Advice
This site is not a substitute for official government data or professional solar installation assessments. Always consult qualified professionals before making investment decisions.