John A.D. Vellone


[email protected]

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John has a comprehensive energy and technology law practice encompassing a breadth of corporate, commercial and regulatory issues with a particular focus on Canadian electricity markets and infrastructure revitalization.

He is a Partner and the National Leader of the firm's Environmental, Social & Governance (ESG) initiative. His clients include Provincial and Territorial governments, system operators, regulated utilities, developers, investors, and lenders. He provides counsel concerning corporate, commercial and regulatory aspects of the electricity and natural gas industries and power project development for a variety of technologies, including:

  • wind
  • solar
  • hydro-electric
  • biomass/biogas
  • tidal
  • natural gas
  • cogeneration (combined heat and power)
  • district energy

John represents clients in proceedings before provincial regulatory agencies, primarily the Ontario Energy Board.

John also has a comprehensive technology law practice encompassing the breadth of corporate/commercial matters. He has experience drafting and negotiating agreements for hardware, software, telecommunications and information technology services for large electrical utilities, provincial/territorial governments and other public sector entities, including in respect of major technology-related acquisitions and supplier arrangements, including custom-developed hardware, software and telecommunications systems; and significant IT outsourcing arrangements.


  • Advising the Ontario Independent Electricity System Operator (and formerly the Ontario Power Authority), the Province of Alberta, the electricity utility serving the Territory of Nunavut (Qulliq Energy Corporation), and the procurement administrator appointed by the Province of Nova Scotia on energy, procurement and commercial law matters as applicable, including drafting and amending interconnection and/or cost recovery agreements, procurement documents, long-term power purchase agreements, and shorter-term incentive contracts and advising on ongoing contract management matters, in respect of Province and Territory-wide initiatives including:
    • the Large Renewable Procurement, the Industrial Electricity Incentive Program, the Hydroelectric Standard Offer Program and the Hydroelectric Contract Initiative in Ontario
    • the Alberta Solar Energy Procurement (up-to 135,000 MWh annually)
    • the Nova Scotia Tidal Energy Procurement
    • Qulliq Energy Corporation’s Independent Power Producer Program and Commercial and Institutional Power Producer Program
  • Advising developers, investors and lenders concerning corporate, commercial and regulatory aspects of power project development for a variety of technologies including natural gas, wind, solar, hydro-electric, biomass, cogeneration, combined heat and power.
  • Advising above clients on transaction structure, contract design, risk assessment, permitting, project finance, regulatory issues, power purchase and energy sales agreements, non-utility generation contracts, construction contracts, operations and maintenance agreements, and mergers and acquisitions in the energy sector.
  • Advising clients, including local distribution utilities, generators, large industrial consumers, and transmitters on energy regulatory matters and representing those clients before the Ontario Energy Board in a variety of proceedings, including electricity and gas rate applications, licensing applications and licence amendments, Z-factor applications, and MAADS applications, and before the Independent Electricity System Operator in a variety of proceedings, including compliance proceedings and inquiries. Advising above clients in respect of review and appeal proceedings before the Ontario Divisional Court and the Ontario Court of Appeal.
  • Drafting and negotiating major outsourcing, technology and telecommunications agreements for large electrical utilities, provincial and territorial governments and other public sector entities, including major technology-related acquisitions and supplier arrangements, including custom-developed hardware and software systems; significant IT outsourcing arrangements; and Province and Territory-wide initiatives.

Beyond Our Walls

  • Executive (Member-at-Large), National Energy, Environment and Resource Law Section (NEERLS), Canadian Bar Association, 2023-2024
  • Past Chair, Ontario Bar Association - Natural Resources and Energy Law Section, 2022-2023
  • Secrétaire, Collège canadien des avocats en droit de la construction, 2018-2019
  • Membre, Association du Barreau canadien, section Droit de la construction
  • Officer (Newsletter Editor), Power Law Committee, International Bar Association

  • Président et président du conseil d’administration, The Pillars Trust Fund Inc., depuis 2013
  • Membre du conseil d’administration, Fondation des sports adaptés, depuis 2015
  • Membre du conseil d’administration, 21CCC, 2015-2018
  • Board Member, Association of Power Producers of Ontario

Prix et marques de reconnaissance

  • Reconnu dans le numéro 2024 (et depuis 2019) de The Best Lawyers in Canada (Énergie – Réglementation de l’électricité) et dans le numéro 2022 (Réglementation provinciale de l'énergie).
  • Reconnu dans le numéro 2024 (et depuis 2019) de Chambers Canada - Canada's Leading Lawyers for Business (Energy - Provincial Regulatory).
  • Reconnu dans le numéro 2023 (et depuis 2019) de The Canadian Legal Lexpert Directory (Énergie – Électricité; Énergie - Pétrole et gaz)
  • Reconnu dans le numéro 2023 (et depuis 2022) de Lexpert Special Edition: Infrastructure
  • Reconnu dans le numéro 2022 (et depuis 2019) de Lexpert Special Edition - Canada's Leading Energy Lawyers
  • Reconnu dans le numéro 2021 (et depuis 2020) de The Lexpert®/ROB Special Edition on Canada’s Leading Infrastructure Lawyers.
  • Reconnu dans le numéro 2017 de Lexpert® Rising Star.

Admission au Barreau et formation

  • Ontario, 2008
  • Certificat, Faculté de droit Osgoode Hall de l'Université York, 2007
  • Certificat Leadership in Law Firms, École de commerce Schulich, 2007
  • LL. B., University of Waterloo, 2003