Kraftwerke Oberhasli AG (KWO, founded 1925) is a Swiss company (based in Innertkirchen) operating several hydroelectric plants in Oberhasli, Canton of Berne.
Founded in 1925, the company had its first power plant, Handeck 1, online by 1932. Currently, KWO is operating nine plants, fed by the reservoirs of Grimselsee, Oberaarsee, Räterichsbodensee, Gelmersee and Totensee, with a total of 26 turbines yielding 1.1 GW, or about 12% of Switzerland's total electricity consumption.
KWO employs 450 people, or a total of 291 full-time jobs.