Hydro-Québec gets its power by spinning its water wheels. The utility distributes electricity to approximately 4 million residential and commercial customers in Québec and generates more than 36,670 MW of capacity (98% from renewable power sources) from 64 plants (59 hydroelectric). The operator of one of North America's largest transmission networks (20,800 miles), it sells wholesale energy in the US and Canada and has international energy interests. It also invests in alternative energy technologies and offers construction and procurement services. Hydro-Québec participates in some oil and gas exploration activities, generally with partners, in Canada. The company is owned by the government of Québec.