New CEO of Mainstream Renewable Power, Julie Berg, effective January 2026.

Morten Henriksen has this week announced his decision to step down from his role as CEO of Mainstream Renewable Power (“Mainstream”) to pursue other opportunities. 

The Board of Mainstream is pleased to announce the appointment of Julie Berg as Group CEO, effective January 2026. 

Julie joined Mainstream in 2024 as CFO and has led the strategic transformation of the company, including the move of HQ from Dublin to Oslo in 2025. Prior to joining the company, Julie held the position of CFO in Aker Carbon Capture (today SLB Capturi) and before that as Partner in KPMG. Julie is a distinguished leader with international experience across many sectors. Julie’s in-depth knowledge of Mainstream, the sector, and the opportunities and challenges faced by the industry mean she will hit the ground running, completing the optimisation programme and driving future growth. 

Mainstream Renewable Power was founded in 2008 with the view to develop utility scale renewable energy projects in developing markets around the world. Mainstream is a leading pure-play renewable energy company, with wind and solar assets in Chile and South Africa. 

In 2021, Aker Horizons acquired a majority stake in Mainstream, and in 2022, Mitsui & Co., Ltd. joined Aker Horizons as a long-term strategic investor. 

The company has successfully delivered 6.6 GW of wind and solar generation assets to financial close-ready.