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Mary Quaney

Group Chief Executive Officer

Mary Quaney

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Mary Quaney

Group Chief Executive Officer

Mary was appointed Group Chief Executive Officer in August 2020. She joined Mainstream in 2009 and she held the role of Group Chief Financial Officer since 2017.

Mary has graduate and post-graduate qualifications from UCD and is a Fellow Chartered Accountant (FCA) and Chartered Tax Adviser (CTA). She is an advocate and spokesperson on gender diversity and participated was a mentor for the Global Wind Energy Council’s (GWEC) Women in Wind programme.

Prior to joining Mainstream, Mary held senior-level positions in finance and corporate tax in PricewaterhouseCoopers and Trinity Biotech Plc.

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Bart Doyle

Group Chief Operating Officer

Bart Doyle

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Bart Doyle

Group Chief Operating Officer

Bart was appointed Group Chief Operating Officer in 2018 and holds responsibility for the Group’s health and safety, project development, construction and operational activities.  

His appointment to Group COO followed his secondment to Mainstream Chile as General Manager for three years and previously, Bart was COO for global onshore developments across the company. 

Formerly, he worked for global developer Airtricity, leading construction for a number of wind assets. Before this Bart worked with Schlumberger Oilfield Services on onshore and offshore oil and gas projects.

Bart graduated as an Electronic and Electrical Engineer from Trinity College Dublin (TCD) and holds an MBA from University College Dublin.  He is an IOD Chartered Director, holds PfMP, PgMP, PMP, RMP and SP certifications from the PMI and has a higher diploma in Construction Law and Contract Administration from TCD, and a Diploma in Executive Coaching from the Irish Management Institute.

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Julie Berg

Chief Financial Officer

Julie Berg

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Julie Berg

Chief Financial Officer

Julie brings over 27 years of experience within finance and internal control and is an experienced leader with focus on promoting diversity in the workplace.

She has held the role as Audit Partner for several years, during which time she has supported many large, listed entities in Norway and has worked closely with Aker for many years.

Originally from the UK, she has extensive international experience within the energy and industrial sectors. Julie is a State Authorised Public Accountant.

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Paul Corrigan

Commercial Director

Paul Corrigan

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Paul Corrigan

Commercial Director

Paul was appointed to the role of Commercial Director in May 2024. He joined Mainstream in 2008 and has been a part of Mainstream’s management team and a director of a number of Mainstream group companies since 2014.

Previously, he led Mainstream’s corporate finance division responsible for managing company strategy and the funding of Mainstream’s global activities principally through raising equity and debt amounts at the holding company and project company levels working with large international financial institutions and smaller retail or High Net Worth investors in Ireland and the UK.

Paul has executed multiple transactions with a value of c.€2.0bn, in project finance, mezzanine finance, trade finance, corporate debt, M&A etc across multiple jurisdictions.

Prior to joining Mainstream, he worked in IBI Corporate Finance and KPMG, qualifying as an Associate of both the Irish Taxation Institute and a Fellow of the Institute of Chartered Accountants. He holds a Master’s degree in Finance and Economics from the London School of Economics.

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Birgitte Karlsen

General Counsel

Birgitte Karlsen

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Birgitte Karlsen

General Counsel

Birgitte was appointed General Counsel at Mainstream in October 2022 where she has responsibility for the legal and compliance functions across the Group.

She joined Mainstream from the position of General Counsel at Aker Offshore Wind following the company’s combination with Mainstream in August 2022.

She has worked in private practice within the energy sector for most of her career and since 2013 as a partner in the law firm Wikborg Rein.

Birgitte graduated with a law degree from the University of Bergen in 2002.

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Jutta Dissen

Group Chief Growth Officer

Jutta Dissen

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Jutta Dissen

Group Chief Growth Officer

Jutta joined Mainstream in April 2023 as Chief Growth Officer being responsible for Strategy, M&A, Commercial and Power Marketing as well as Business Development for all technologies and Power2X.

Prior to joining Mainstream, Jutta was global Senior Vice President Global Accounts and Partnerships (M&A) and lead the New Markets Team at RWE Renewables. Jutta has 20+ years’ experience in the energy industry, 14 with RWE Renewables. During her tenure with RWE, she developed a strategic approach to Partnering, Capital Rotation, Pipeline enhancement and to Market Entries and successfully executed the strategy with numerous transactions (selldowns of assets in Europe and US, acquisition of projects and companies and winning large Offshore leases in the US and UK) as well as market entries in i.a. Chile, Mexico, Australia, India, Japan and South Korea.

Prior to her last role, she led different legal teams within the wider RWE group and worked for international law firms Clifford Chance and White and Case.

Jutta studied law in Würzburg, Bochum and Essen and holds an LL.M. from UC Davis and is admitted to the German bar in Düsseldorf and the New York bar.

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