Blackfalds Historical Society trivia question- Week 2

here is the question of the week

Who opened the power plant that was on the Blindman River just east of Blackfalds? 

when was it opened and when did it close?

some hints:  there are some copies of a book called blackfalds Recollections by Judy A Carelton available at the public library. :)You might find a lot of answers in this book