Romande Energie Holding SA is a Switzerland-based holding company specializing in the production, distribution, and marketing of electrical and thermal energy, primarily in French-speaking Switzerland. Formed from the 1997 merger of historic entities Société romande d'électricité (founded 1904) and Compagnie vaudoise d'électricité (roots in 1901), it operates through key segments including Grids, Energy Solutions, Romande Energie Services, and Corporate. The company generates electricity from diverse renewable sources such as 33 hydropower plants, 65 solar farms, 2 biomass plants, and 2 wind farms, alongside managing 10,000 km of power lines and 45 substations. Romande Energie Holding SA supplies over 300,000 customers across cantons like Vaud, Valais, Fribourg, and Geneva, emphasizing security of supply, green energy transitions, and innovative services like smart grids and energy efficiency tools. Headquartered in Morges, it employs around 1,305 people and plays a vital role in Switzerland's sustainable energy infrastructure, with major shareholders including the Canton of Vaud and local communes.