Investors

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.

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.

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.

Bart has responsibility for overseeing the governance and management of Mainstream’s strategic partnerships and joint ventures globally. He was Group Chief Operating Officer from 2017 to 2024 and prior to that he was General Manager for the Company’s Chilean business for three years.

He has decades of experience in the global energy sector having worked for Airtricity and Schlumberger Oilfield Services.

Bart graduated as an Electronic and Electrical Engineer from Trinity College Dublin (TCD), he holds an MBA from University College Dublin, several certifications from the PMI and a Higher Diploma in Construction Law and Contract Administration from TCD.

Elaine joined Mainstream in 2008 and has 20 years of diverse Human Resources experience in the renewable energy industry. She and her team are responsible for providing a comprehensive and commercially focused HR service for the Mainstream Group.

She successfully established and grew the Human Resources department where her team has supported the establishment of offices and recruitment of staff across 6 continents. She is part of Mainstream’s Sustainability Committee.

Prior to joining Mainstream, Elaine worked at Airtricity as Senior HR Executive.

Elaine earned her Bachelor of Arts degree in Spanish and Economics from University College Cork and a Bachelor’s Degree in Human Resource Management from the National College of Ireland. She is a Chartered member of CIPD.

Hein assumed the position of General Manager in 2016. He has direct responsibility for projects in development, construction and operations including taking the lead on Mainstream’s Africa initiatives late in 2016.

Since Hein joined Mainstream, his roles have included project and business development through to construction. Having worked in renewable energy since 2008, Hein has vast knowledge and experience in the industry.

Hein trained as a mechanical engineer and built a successful career in delivering complex projects and new business initiatives leading multi-disciplinary teams of professionals. His experience covers rewarding enterprises in the automotive, rail, marine and energy industries. He has been one of the pioneers of the South African renewable energy industry and a board member of the South African Wind Energy Association (SAWEA) from 2014 to 2018.

Kristian Monsen Røkke has experience from offshore services and shipbuilding in several companies in the Aker group. Prior to assuming his current position as CEO of Aker Horizons AS, Kristian Monsen Røkke served as Chief Investment Officer of Aker ASA.

Lene Landøy joined Aker ASA in September 2021, where she is Head of Investments. Prior to this, she was an executive responsible for Strategy and Business Development and Commercial at Aker BP, which she joined in 2017. Ms Landøy also has experience from Equinor as leader of business development on the Norwegian Continental Shelf. She has extensive experience from various business entities such as technology and innovation, finance, natural gas and international business development.

Ms Landøy is Deputy Chairman of Norsk Industri, serves on the board of Gaia Salmon, Clara Venture Labs and is a deputy board member for Aker Horizons. She holds a Master’s degree in finance from the Norwegian School of Economics (NHH) and the University of California Los Angeles (UCLA). She also holds a Master’s degree in international finance from the Skema Business School in France.

Jan Ivar Nielsen has been with Aker Horizons from its inception in July 2020. Prior to this, he spent over 25 years in the Aker Group and its related companies across Norway, the UK, the US, Brazil and Ghana. This includes nine years as CFO in Philly Shipyard and six years as EVP and CFO in Vard Group. Prior to this Jan Ivar worked in the process industry for six years.

In October 2020, Lesley took up the position of Group Insurance Manager working with risk owners across the business to innovate, protect and drive value for Mainstream’s assets. Previously, Lesley was seconded to Mainstream Chile as and worked with the team to deliver US$1.2bn in project finance and led insurance for its 1.3 GW ‘Andes Renovables’ platform. 

Following Aker Horizons’ acquisition of a majority stake in Mainstream in May 2021 and the subsequent formation of a new Board of Directors, Lesley was appointed to the Board representing the O’Connor family interests. Previously, Lesley also served on the Mainstream Board of Directors from 2015 up to the date of the acquisition. 

She joined Mainstream as Development Project Manager in January 2012 and rotated through development, business development and commercial functions supporting origination in target markets and mergers and acquisitions.

She studied Management Science and Information Systems Studies in Trinity College Dublin and holds an MBA from IE Business School, Madrid.

Erik Knive joined Aker Horizons in March 2021, prior to joining AKH Erik was 15 years in the global power industry serving amongst other positions as EVP Asia, EVP Latin America, COO and Group CEO of global renewable champion SN Power AS. 

Prior to joining the power industry Erik, served 10 years in the international telecommunications industry, serving as Director Telematics Division in Teleplan and later Managing Director Asia and Vice President of Global Business development for Norconsult Telematics.

Erik also served 3 years as Group CEO of Green Resources AS the pan African afforestation and forestry products group. He is educated in the USA at Florida Air Academy, University of New Orleans and Harvard Business School and is a certified pilot.

Koichi Katayama joined Mitsui & Co., Ltd. in April 1995.

Since joining Mitsui & Co., Ltd., most of his career has been spent in the Infrastructure
Projects Business Unit, helping to develop many infrastructure projects in power, oil & gas,
water, and logistics. This work has involved EPC management, project financing, investment,
M&As, and O&M oversight.

During his career, he has held several management and leadership roles, including
development of thermal power projects in Asian countries and primary energy projects in
Brazil, and the strategic planning of the Infrastructure Projects Business Unit. In the last
decade, he has been engaged in renewable energy projects, such as solar and onshore &
offshore wind power projects in Asia and Latin America.