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The governing body of Laurentis Energy Partners.

Meet the men and women guiding Laurentis Energy Partners and helping to move the global energy industry forward.

Steve Gregoris is the Chief Nuclear Officer for Ontario Power Generation. He is responsible for OPG’s nuclear fleet consisting of two stations and 10 nuclear units.
Steve has worked in the Nuclear Power industry for over 30 years, all with Ontario Power Generation/Ontario Hydro at both the Darlington and Pickering Nuclear Generating Stations. He brings expertise in areas such as operational excellence, leader development, performance improvement, and organizational effectiveness.
He started his career in Engineering and then moved to Operations, where he has held several positions including Certified Shift Manager and Operations Manager at Pickering, and Director of Operations and Maintenance at Darlington. In 2017, Steve completed a secondment with the World Association of Nuclear Operators in Atlanta as an Organizational Effectiveness Evaluator. Steve was Deputy Vice President for Pickering and prior to his current position, he was Senior Vice President for the Darlington Nuclear Generating Station.
Steve is a graduate of McMaster University with a B.A.Sc in Mechanical Engineering and is a member of Professional Engineers Ontario.
Steve is married and has two children. He enjoys motorsports and travelling.

Ken HartwickKen Hartwick is Ontario Power Generation’s President and CEO. Ken joined OPG in March 2016 as OPG’s Chief Financial Officer and Senior Vice President - Finance, where he led all operations under Finance, Business Development, Strategy, and Risk. As CFO and SVP - Finance, Ken also led the launch of Canada’s first utility green bond as well as OPG’s expansion to the U.S. through the acquisition of Eagle Creek Renewable Energy LLC.

Ken joined OPG from Wellspring Financial Corporation, where he was CFO and Treasurer. He was also interim President and CEO at Atlantic Power Corporation, a generating company that does business in Canada and the U.S. For ten years prior, Ken was the President and CEO of Just Energy Corporation, a Canadian-based energy retailer. In addition, he held the position of CFO at Hydro One between 2001 and 2004. He also held senior positions at Cap Gemini and was a partner at the accounting firm Ernst & Young.

Ken is a Chartered Professional Accountant with an Honours Bachelor of Business Administration. He serves on a number of boards.

Originally from Norwood, Ontario (near Peterborough), Ken now lives in Milton with his wife. He has three grown children.

As Chief Administrative Officer (CAO) at Ontario Power Generation, Mel and her team are responsible for human resources, labour relations, environment, health and safety, procurement, information technology, real estate and facilities.

Mel joined OPG in September 2017 as Assistant General Counsel and was appointed Senior Vice President Human Resources (HR) in 2019. After working with her team to modernize HR and implement a transformational HR strategy, Mel moved into her current role in October 2021. Her mandate in the CAO function involves establishing a set of cohesive shared services using process, technology and leading practices to further improve support function activities at OPG under her division. This includes out of the box thinking on how services are engaged, customer satisfaction tracking and supporting a well functioning service delivery model.  

Mel has a Bachelor of Arts Degree from the University of Toronto and graduated from the University of Toronto, Faculty of Law in 2002. Prior to joining OPG, Mel practiced commercial litigation in New York City and at a large national Bay Street law firm in Toronto.

Outside of OPG, Mel fuels her interest in social justice through her service on the board of a not-for-profit organization providing support to women experiencing violence. She also mentors a diverse group of up and coming professionals from a variety of backgrounds that will eventually help to change the profile of leadership teams in the future. 

Mel is mother to two young sons who keep her very busy.