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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.

Board of Directors Chair

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.


Aida Cipolla is Ontario Power Generation’s Chief Financial Officer (CFO) and Senior Vice President, Finance. Aida and her team are responsible for providing OPG with strategic leadership and strategy for: business planning; accounting and financial reporting; treasury; taxation; fund management; internal audit; and enterprise risk management.

An experienced business executive, Aida joined OPG in March 2022 from Toronto Hydro, where she had worked since 2008, most recently as Executive Vice President and CFO. She supported critical initiatives such as electricity rate applications and successfully reshaped Toronto Hydro’s Finance function using transformational strategies that include automation, blending industry best practices, and practical business solutions to drive strong financial performance. She also led their Climate Action Plan financial strategy to support the Toronto’s Transform TO initiative towards sustainability, and Toronto Hydro’s financial response to the COVID-19 pandemic. Prior to joining Toronto Hydro, Aida worked for KPMG LLP in Toronto and Dublin, Ireland, leading audit and advisory engagements.

Aida is known as a forward-thinking thought leader and spokesperson for the electricity industry. She is the first woman to chair the Electricity Canada (formally Canadian Electricity Association) CFO committee. Aida is a mentor through formal mentorship programs and is a strong advocate for equity, diversity and inclusion initiatives. She was recognized as one of Canada’s Top 100 Most Powerful Women in 2020 and as an Honouree in Canada's Top 40 Under 40 in 2019.

She is a Chartered Professional Accountant (CPA, CA) and holds an Honours Bachelor of Commerce Diploma with a minor in Economics from McMaster University, Michael G. DeGroote School of Business, and sits on the Board of Directors and Resource Committee for Women’s College Hospital in Toronto.

Aida is a devoted wife and mother of two young 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.