Power Workers' Union

Location: Toronto, ON

Number of members: 20,000

Client since: 2012


The roots of the Power Workers' Union go back to 1944, with the formation of the Employees' Association at Ontario Hydro. Today, their members work throughout Ontario and make up a large majority of the employees at Ontario Power Generation, Bruce Power, TransAlta in Ottawa, Northwind Power, Mississagi Power, Hydro One and affiliate companies, the Electrical Safety Authority and the Independent Market Operator. The union also represents workers at local distribution companies throughout the province, as well as local cable and telephone companies, the County of Brant, Kinectrics, New Horizon System Solutions, Inergi, operators at Atomic Energy of Canada Ltd. and finally casual employees through PWU hiring hall agreements.