Article 1475 of the French General Tax Code
The rental values of hydroelectric facilities under concession or with a capacity of more than 500 kilowatts are apportioned between the communes in whose territory the watercourses used or civil engineering works exist, taking into account the size of the latter, the possible existence of water reservoirs and the average hydraulic capacity that has become unavailable within the boundary of each commune as a result of the plant; the percentages…