Hydro Ottawa Limited, a wholly owned subsidiary of Hydro Ottawa Holding Inc., is the third largest municipal electricity distribution company in the province. Hydro Ottawa is responsible for the safe, reliable delivery of electricity to more than 291,000 residential and business customers in the City of Ottawa and the village of Casselman.
Hydro Ottawa is proud to be a founding member of powerWISE^®, a program developed in partnership with the Ontario Government and five other electricity distribution companies, created to promote energy conservation to consumers, reduce the overall demand for electricity and most importantly build a conservation culture meant to last for years to come.
 
www.powerwise.ca is a website developed by this partnership that provides customers with regularly updated information about conservation programs as well as energy saving tips.