In Spain, a clean energy project requires approximately ten years for permitting
75% confidence
EnvironmentSpain
Omissions
The nine-year figure refers specifically to offshore wind and pumped-storage hydroelectric projects, not to all clean energy projects; no data has been found on the average or typical timeframe for other renewable technologies such as photovoltaic solar or onshore wind; the nine-year figure corresponds to the legally permitted maximum period, not necessarily the actual average processing time