Électricité de Strasbourg SA is a French société anonyme specializing in electricity and gas distribution, primarily serving the Alsace region, particularly the Bas-Rhin department. Founded in 1899, the company operates, maintains, develops, and renews an extensive electrical network under the ESR brand, spanning over 12,000 km and delivering power to approximately 800,000 customers. It organizes its activities into three main segments: electricity distribution focused on network management; electricity and gas production, marketing, and trading, which accounts for the majority of revenues at around 78%; and energy services encompassing real estate, geothermal energy, and technical building installations. As France's second-largest electricity distributor and the only listed local distribution company (ELD), it holds a notable 1.5% share of national electricity consumption. Majority-owned by EDF Développement Environnement SA, Électricité de Strasbourg SA employs about 1,125 people and operates through subsidiaries like ES Energies Strasbourg SA and Fipares SA, contributing to regional energy security, renewable integration with 40% from sources like hydro, solar, and wind, and sustainable infrastructure investments.