Centrale hydroélectrique Mazarin

This hydroelectric power station was built by Gustave Adolphe Clément to power his construction plant, the Macérienne, on the site of the former Mazarin mill in Mézières, at the foot of the ramparts. The work lasted from 1896 to 1898 and the plant was not commissioned until 1904. It was sold to a private company in 1984 when the Macérienne closed. In 1904, three Teisset-Brault Chapron Francis turbines of 187 hp each, coupled with Westinghouse alternators and Ribourt speed regulators produced 2200 volts. In 1924, these installations were replaced by equipment still in operation. A seven-ton overhead crane built by the Gustin de Deville establishments was used to carry out maintenance operations. During its operation, the electrician and the chief engineer lived in the three dwellings adjoining the plant. Four more employees were needed to ensure production.
The power plant has a basement floor for carrying out maintenance operations on the turbines. It is entirely built of limestone with a terrace roof made of reinforced concrete. The three dwellings (two single-storey square pavilions) frame the street façade.