Ms. Johnston is a Corporate Director. She was Executive Vice President, Gas, Renewables and Operations Services at TransAlta Corporation from 2015 until her retirement in 2017. Between 2011 and 2015, she held various positions, including Executive Vice President Enterprise Risk and Corporate Services and Executive Vice President Corporate Services. Prior thereto, Ms. Johnston held various executive leadership positions with TransAlta and FortisAlberta.
Ms. Johnston holds a Bachelor of Arts in Economics from the University of Calgary and a Masters in Applied Economics from the University of Victoria. She is a member of the Institute of Corporate Directors.