It carries out the public service mission of producing, distributing and marketing electricity on the island of Mayotte.
[1] The additional costs are covered by the contribution to the public electricity service (CSPE), paid by all consumers, and amount for example to 10.8 billion euros over the period 2002-2013[1] There are two thermal power stations in Mayotte, consisting of 17 diesel engines in all.
[1] The Badamiers power station, on the island of Petite-Terre, was commissioned in 1987, with a capacity of 38.1 MW; in 2013 this plant provided 38% of total production.
[1] This plant does not comply with industrial standards (particularly pollution or noise) but operates with a temporary exemption from the DEAL.
Its potential upgrading would be costly; EDM plans to operate until 2023, when it would be at the end of its life [1] The Longoni power station, on the island of Grande-Terre, was commissioned in 2009, with a capacity of 40 MW, and provided 57% of total production.
A new program called "Gamissa" ( "Storage"in Shimaoré) was proposed by EdM in 2019, and could constitute the first milestone of a 50% solar energy target for the 2020s.