Former EfficiencyOne CEO becomes Nova Scotia’s deputy energy minister

Stephen MacDonald, former CEO of EfficiencyOne, is pictured. (Source: Government of Nova Scotia)

Nova Scotia Premier Tim Houston is shaking up leadership in the energy and advanced education departments, bringing on a former EfficiencyOne CEO in the process.

Houston announced Stephen MacDonald, who is a chartered professional accountant, will become the deputy minister of energy on Wednesday. He will take over the role from Karen Gatien, who was originally appointed to the post in December 2024.

A February news release from EfficiencyOne noted MacDonald was stepping down after 14 years with the company.

“I’m excited to have Mr. MacDonald join the team at the Department of Energy as we shape the future of our economy,” Houston said in a news release from the province.

Houston, who has made energy development projects a major part of his government’s agenda, appointed himself minister of energy last October.

Gatien will become the deputy minister of advanced education, taking over for Tracey Barbrick, who will continue as deputy minister for education and early childhood development.

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