Department profile
Energy: Power
Canada Guide 2026 : Nationwide - Canada
Rankings
Ranked Individuals
Ranked Individuals
About
Provided by McCarthy Tétrault LLP
We empower our clients with the top quality legal support that they need to achieve their most important objectives
Our Power Group consists of market-leading lawyers focused almost exclusively on the sector, offering a 360 degree view of the industry. For our clients, this means comprehensive advice that reflects the peculiarities of the sector, mitigates business risks, and advances even the most complex goals.
Our experience is comprehensive, it includes:
- Acquisitions, divestitures, development, operation and financing of all classes of generating assets, including renewable, hydroelectric, thermal and nuclear
- Acquisitions, divestitures, development, operation and financing of transmission and distribution assets
- Power sales and procurement arrangements
- Advising project proponents and financiers in their responses to provincial requests for proposals and standard offer or feed-in-tariff programs
- Providing strategic regulatory advice, including in connection with rate hearings and M&A transactions
Chambers Review
Provided by Chambers
Work Highlights
Provided by Chambers
McCarthy Tétrault advised TransAlta Corporation in its acquisition of Heartland Generation from Energy Capital Partners.
Strengths
Provided by Chambers
McCarthy Tétrault has a deep understanding and knowledge of the energy sector which enables them to provide cost-effective, solution-oriented and strategic advice.
Energy: Power respondentCanadaMcCarthy provide the legal advice and services needed but partner closely with us to find solutions, understand the bigger picture and develop and advance strategies.
Energy: Power respondentCanadaMcCarthy Tétrault have great people, strong experience and wide knowledge.
Energy: Power respondentCanadaThey have depth and background in relation to Ontario and the Canadian energy regulatory law.
Energy: Power respondentCanada
Notable Practitioners
Provided by Chambers
Senior Statespeople 
Senior Statespeople David Lever
David Lever enjoys a distinguished reputation for his skilled work on M&A and project development in the power space. Based in Toronto, he represents major clients in the market in project financing and construction mandates.
David is the total package.
Energy: Power respondentCanadaHe is one of a kind! David is a true strategic partner.
Energy: Power respondentCanada
Band 2 
Band 2 Terri-Lee Oleniuk
Calgary-based Terri-Lee Oleniuk is sought out for her counsel on the regulatory aspects of renewable project developments, appearing before the Alberta Utilities Commission regarding project applications and regulatory disputes.
She is great, very client service-oriented, super smart and practical when it comes to environmental and regulatory law.
Energy: Power respondentCanadaShe is very experienced and knowledgeable on the regulatory framework in Alberta, which is constantly evolving.
Energy: Power respondentCanada
Band 3 
Band 3 Seán C O'Neill
Seán O'Neill is noted for his diligent handling of transactional and project financing mandates within the power space, with experience acting for renewables, nuclear and gas clients. He chairs the firm's power group from the Toronto office. Seán knows the market well and is creative in his advice.
Energy: Power respondentCanadaSean has been invaluable over the years in supporting our successes in Canada and understands our business and people to an exceptional extent.
Energy: Power respondentCanada
Band 3 
Band 3 Suzanne Murphy
Operating out of Toronto, Suzanne Murphy acts on the instruction of a variety of power companies including those operating in power storage and district energy. She frequently assists with transactional and commercial mandates such as energy service agreements and asset acquisitions. Suzanne knows the power sector. She is an excellent corporate/commercial lawyer and knows the nuances of drafting.
Energy: Power respondentCanada
Band 4 
Band 4 Kimberly Howard
Calgary-based Kimberly Howard advises clients on a range of regulatory work, including supporting lenders, developers and power purchasers throughout the project development life cycle.
She's very responsive, very open-minded to creative ways of approaching an issue, good at bringing in extra team power when she needs to.
Energy: Power respondentCanadaShe does a good job of connecting clients with her team depending on the subject matter. She is friendly and personable.
Energy: Power respondentCanada
Band 4 
Band 4 Mark Johnson
Toronto-based Mark Johnson has built an impressive reputation in the energy space, with considerable expertise in advising clients on renewable energy development projects.
Mark is very experienced, very knowledgeable and practical.
Energy: Power respondentCanadaMark is a top national expert in the field.
Energy: Power respondentCanada
Ranked Individuals at McCarthy Tétrault LLP (6)
Nationwide - Canada
Terri-Lee Oleniuk
Energy: Power (Regulatory)
View profile Kimberly Howard
Energy: Power (Regulatory)
View profile David Lever
Energy: Power (Transactional)
View profile Seán C O'Neill
Energy: Power (Transactional)
View profile Suzanne Murphy
Energy: Power (Transactional)
View profile Mark Johnson
Energy: Power (Transactional)
View profile
Members
Provided by McCarthy Tétrault LLP
Seán C O'Neill
View profile of Seán C O'NeillMark Johnson
View profile of Mark JohnsonDavid Lever
View profile of David LeverSuzanne Murphy
View profile of Suzanne MurphyTerri-Lee Oleniuk
View profile of Terri-Lee OleniukKimberly Howard
View profile of Kimberly Howard
McCarthy Tétrault LLP has rankings in the following guides
Band 1
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