Accountable, constructive, collaborative
Alberta's electricity grid and markets depend on high-performing, service-driven leadership. Our leaders focus on the province's electricity needs, acting in the public interest and upholding the AESO Principles.
Read about our senior management and executive members here:
President and Chief Executive Officer
David Erickson was appointed President and Chief Executive Officer for the Alberta Electric System Operator (AESO) in July 2009. Mr. Erickson has previously served as the AESO’s Chief Operating Officer, Senior Vice-President and Chief Financial Officer (CFO).
Before joining the AESO, Mr. Erickson was the CFO for the former Transmission Administrator of Alberta. During his time with the Transmission Administrator, he was responsible for executive leadership of the Finance, Human Resources, Legal, and Information Technology departments. Mr. Erickson played an integral role during the integration of the former Power Pool and Transmission Administrator of Alberta organizations, ensuring a smooth and efficient transition.
Mr. Erickson has many years of international financial management and accounting experience in the electricity and energy sectors. He holds a Bachelor of Commerce in Management Information Systems from the University of Calgary, and is a member of the Canadian Institute of Chartered Accountants, the Institute of Chartered Accountants of Alberta, and the Institute of Corporate Directors where he received his ICD.D designation in 2014.
Senior Vice-President and Chief Operating Officer
Michael Law was appointed Senior Vice-President and Chief Operating Officer for the Alberta Electric System Operator (AESO) in January 2017. Mr. Law first joined the AESO in 2009 as Vice-President, Operations. Following that, he held the role of Vice-President, Market Services and most recently Vice-President, Renewables Development and Sustainability.
Reporting to the President and Chief Executive Officer, Mr. Law leads the execution of the AESO’s strategic plan and supporting initiatives and provides leadership and direction to the AESO’s core business units. He is accountable for the delivery and integration of the AESO’s information technology, markets, operations, regulatory, and transmission functions as well as the Renewable Electricity Program. Mr. Law also represents the AESO as a trusted leader to ensure the company maintains effective relationships with stakeholders in the electricity industry, government agencies, governing bodies and public.
Prior to joining the AESO, Mr. Law was Vice-President, North American Power for Direct Energy Marketing Limited in Calgary, overseeing the company’s wholesale electricity portfolio management business. In his previous role with Direct Energy Marketing, Mr. Law had oversight of the Canadian power and natural gas commodity trading operations.
Mr. Law holds a Masters of Applied Science in Mechanical Engineering and a Masters of Business Administration in Finance, both from the University of British Columbia.
Vice-President, Information Technology
Bill Baker was appointed Vice-President, Information Technology for the Alberta Electric System Operator (AESO) in June 2011. Mr. Baker previously served as a Senior Director responsible for overall IT operations, and held a variety of Information Technology leadership positions with the AESO and the former Transmission Administrator over the past 13 years.
Mr. Baker has 23 years experience in the Information Technology field. Prior to joining the AESO, he worked at Canadian Pacific Railway, the Department of National Defence, the Canadian Net Income Stabilization Account and We Care Health Services. Mr. Baker has developed and taught Information Technology courses for the Southern Alberta Institute of Technology, Web Age Solutions, the University of Manitoba and Brandon University.
Mr. Baker holds a Bachelor of Science in Computer Science from Brandon University and a Masters of Science from the University of Manitoba.
Todd Fior was appointed Vice-President, Finance for the Alberta Electric System Operator (AESO) in February 2007. Mr. Fior is responsible for leadership of the company’s Accounting, Settlement, Credit and Risk Management functions. Previously Mr. Fior was Director, Risk and Settlement with the AESO, a position he held for nearly four years.
Mr. Fior has more than 18 years of experience in the accounting, financial and treasury areas. Prior to joining the AESO, he was employed by TransAlta Corporation and prior to that by a public accounting firm providing business advisory services.
He is a graduate of the University of Saskatchewan where he obtained a Bachelor of Commerce degree and is a member of the Canadian Institute of Chartered Accountants and the Institute of Chartered Accountants of Alberta.
Miranda Keating Erickson
Vice-President, Regulatory and External Affairs
Miranda Keating Erickson was appointed Vice-President, Regulatory and External Affairs for the Alberta Electric System Operator (AESO) in February 2017. Since joining the AESO in February 2010, Mrs. Keating Erickson has held several roles of increasing responsibility including her most recent role, Vice-President, Operations. She is part of the AESO’s leadership team, who are responsible for ensuring the reliable operation of the electricity grid and wholesale market in support of Alberta’s $300 billion economy.
Mrs. Keating Erickson was previously at TransAlta in the role of Director, Commercial Management/Commercial Operations with accountability for all commercial aspects of TransAlta’s fleet of generating and transmission assets in Canada, the U.S. and Australia. Throughout her time at TransAlta she had a wide range of experiences and provided leadership in the areas of investor relations, trading, project management, and commercial operations.
Mrs. Keating Erickson holds a Bachelor of Commerce from McGill University in Montreal, Canada, a Project Management Professional designation and the ICD.D designation from the Institute of Corporate Directors.
In addition to having a breadth of knowledge of Alberta’s electricity sector, she has a strong history of contributing to the community. She has been active for more than 15 years with the McGill Alumni Association, including her current role as Vice-President of the Board of Directors and Co-Chair of the McGill Alumni Leaders Advisory Council. She also serves as Advisory Board Chair for AIESEC Calgary and previously as a founding board member of Forte Musical Theatre Guild.
Vice-President, Market Design and Commercial
Heidi Kirrmaier was appointed Vice-President, Market Design and Commercial for the Alberta Electric System Operator (AESO) in February 2017. She is responsible for providing leadership for Alberta’s capacity market transition and associated commercial arrangements; the design of the AESO Tariff; the development and execution of the Renewable Electricity Program, and the execution of the AESO’s Competitive Process arrangements.
Ms. Kirrmaier first joined the AESO as Vice-President, Regulatory in December 2005. In her previous role, she was accountable for the AESO’s submissions to the Alberta Utilities Commission, as well as the development of the Tariff, Rules and Reliability Standards, and overseeing the AESO’s external compliance monitoring program.
Ms. Kirrmaier has over 25 years of experience in the electricity industry. Prior to joining the AESO, her career included various positions with ATCO Electric and Aquila Networks Canada (now Fortis) in Alberta, project work for ATCO in Australia and England, and consulting for the British Columbia Utilities Commission.
Ms. Kirrmaier is a graduate of the University of Alberta with a Bachelor of Science in Electrical Engineering, and is registered as a Professional Engineer with the Association of Professional Engineers and Geoscientists of Alberta.
Jerry Mossing was appointed Vice-President, Transmission for the Alberta Electric System Operator (AESO) in February 2017.
Mr. Mossing is responsible for planning Alberta’s transmission system and providing customers with fair and open access to the transmission system through facilitation of the AESO’s Connection Process. Prior to this he was also responsible for technical aspects and studies associated with implementing Alberta’s Climate Leadership Plan including the planned phase out of coal emissions.
Mr. Mossing has been with the AESO since 2003, holding a range of progressively responsible positions. Mr. Mossing has extensive experience in Alberta’s electricity industry, having worked with the Power Pool of Alberta and TransAlta Corporation prior to joining the AESO.
Mr. Mossing is a Professional Technologist (Engineering) with over 35 years of experience in transmission, operations and information technology.
Vice-President, Human Resources
Lisa Nadeau was appointed Vice-President, Human Resources for the Alberta Electric System Operator (AESO) in January 2017. Ms. Nadeau previously held the role of Director, Human Resources since joining the AESO in 2006. As a part of the leadership team, she is responsible for integrating new AESO work into existing workflows and overseeing change and transition management, knowledge transfer, education and other human resources management accountabilities.
Prior to working with the AESO, Ms. Nadeau held a variety of human resources positions with increasing responsibility in the Department of National Defence, the National Energy Board and the Canadian Food Inspection Agency.
Ms. Nadeau has extensive human resources expertise in strategy development, workforce planning, performance management and organizational design. She is also experienced in employee relations for both unionized and non-unionized environments, and in learning and development, change management and human resources information systems implementation.
As a life-long learner, Ms. Nadeau holds a Masters of Business Administration from Royal Roads University in Victoria, B.C., a Bachelor of Management (Honours) from the University of Manitoba, and a post-graduate diploma in Management Consulting from the Grenoble Graduate School of Business in France. Ms. Nadeau holds certificates in Human Capital and Effective Organizations and in Adult and Continuing Education from the University of Southern California and the University of Calgary respectively. She has also earned her Chartered Professional in Human Resources designation.
Ms. Nadeau is currently serving as a board member for the Alberta Printmakers Society and a volunteer with Partners for Mental Health.
Greg Retzer was appointed Vice-President, Operations for the Alberta Electric System Operator (AESO) in February 2017. Prior to this Mr. Retzer held AESO executive roles focused on advancing Alberta’s transmission system. He also most recently provided leadership to the Corporate Communications team.
As Vice-President, Operations, Mr. Retzer is responsible for ensuring the safe, reliable and economic operation of the Alberta Interconnected Electric System and wholesale market.
Before joining the AESO in 2010, Mr. Retzer was employed by Stantec where he was responsible for major project delivery and key proposals in their Environmental Management practice. He has worked internationally with Apex CoVantage as President, Engineering Solutions and QC Data as Vice-President, North American Operations, where he successfully led initiatives in the telecommunications and electricity industries. Mr. Retzer has broad leadership experience in commercial operations, business development, process improvement, customer relations and program management. He is a past board member of AltaLIS Ltd.
Mr. Retzer supports the community in a number of volunteer roles, and holds a Bachelor of Science from the University of Calgary and Master of Business Administration from Georgia State University.
Office of the Chief Engineer
Neil Brausen was appointed Chief Engineer for the Alberta Electric System Operator (AESO) in June 2012. Mr. Brausen is a long-standing employee of the AESO and highly respected within the electricity industry. He is responsible for providing technical engineering counsel to the CEO and Executive team while leading the AESO’s professional practice activities, and represents the AESO at various forums. In addition, he provides internal engineering oversight, leadership and mentorship to the AESO’s engineering staff. Previously, Mr. Brausen held the role of Senior Planning Advisor for the AESO, providing advice and guidance with respect to the development of the transmission system.
Prior to joining the AESO in 2002, Mr. Brausen was employed at TransAlta Utilities for 26 years where he was involved in generation design, transmission and distribution planning, logistics management, business development and transmission asset management.
Mr. Brausen obtained a Bachelor of Science in Electrical Engineering in 1975 from the University of Alberta and holds a designation of Professional Engineer with the Association of Professional Engineers and
Geoscientists of Alberta.
Fred Ritter was appointed Chief Engineer for the Alberta Electric System Operator (AESO) in June 2012. Mr. Ritter is a long-standing employee of the AESO and is highly respected within the electricity industry. In keeping with the creation of the Office of the Chief Engineer (OCE) to provide an appropriate level of internal engineering oversight, Mr. Ritter is responsible for providing technical counsel to the CEO, the Executive team, and AESO staff as well as providing professional leadership and mentorship to engineering staff. Previously, Mr. Ritter held the role of Technical Lead, Engineering for the AESO’s Transmission Support Team and, prior to that, was Director, Engineering for the AESO.
Before joining the AESO, Mr. Ritter spent 25 years at TransAlta Utilities. He then joined ESBI Alberta Ltd. in 1998. During his time there, the ESBI became known as the Transmission Administrator of Alberta (2002) and then the AESO in 2003 following the integration of the Power Pool of Alberta and Transmission Administrator of Alberta. Mr. Ritter has held roles in a variety of areas including system operations, system protection and control, substation design and project engineering.
Mr. Ritter has over 39 years of engineering experience and holds a Bachelor of Science degree in Electrical Engineering from the University of Alberta. Additionally, he holds the designation of Professional Engineer with the Association of Professional Engineers and Geoscientists of Alberta and is a Senior Member of the Institute of Electrical and Electronics Engineers.