The facility would be Europe’s largest, and make the city-state a net energy exporter.
The project — planned for a 300-hectare site just north of Rome, near the medieval village of Santa Maria di Galeria — will require an investment of €400m– €500m ($520m–$650m).
The Vatican is holding talks with German solar-panel maker Solarworld, which last year donated 2,400 panels worth €1.5m
