Michael O'Sullivan

Michael O'Sullivan

Chief Executive Officer & Co Founder


Michael leads our management team. Michael has over 30 years leadership experience in corporate, banking, renewable energy development and financial advisory.

Prior to establishing Regnum Renewables Michael held a senior consultant role with Deloitte in the Debt and Capital Advisory team.

From 2013 to 2018 he led the Gaelectric corporate finance department where he was responsible for funding Gaelectric’s activities through the raising of mezzanine debt at group level and senior debt at project company level with a value of c.€500m.

Michael successfully managed the Gaelectric sale process for the 230MW operational wind portfolio to CGN in 2016 and the sale the solar energy portfolio with the benefit of planning to Power Capital in 2017.

Michael has executed multiple commercial and business banking transactions with a value of over €6.0bn including leveraged buy-outs, M&A, project financing as well as sourcing equity backing for new start up commercial ventures.