Image courtesy TenneT
Senior partner and former managing partner at McKinsey & Company, Dieuwert Inia, has been appointed chief financial officer (CFO) of TenneT Holding and TenneT Netherlands.
Inia succeeds Arina Freitag, who has been serving as TenneT’s CFO since January 2022 and will remain in office until the end of her term, 31 December 2025.
TenneT in a release cites Inia’s deep experience advising clients who play a key role in the energy transition, on performance transformation and value creation in the energy sector and in other similarly asset-intensive industries.
Said Inia: “The energy transition forms one of the most important challenges we have as a society. I am excited to become part of TenneT and help drive this transition.”
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Based in the Netherlands, TenneT says Inia brings a strong foundation for future CFO leadership in which acceleration of grid expansion as well as its affordability are central.
TenneT plans to invest a total of €200 billion ($234.5 billion) in grid enhancements and expansion in the Netherlands and Germany by 2034.
In the Netherlands specifically, the company has onshore and offshore investment plans, including grid extensions, replacement investments, new customer connections and connection systems for offshore wind energy. Among other things, TenneT will develop five larger new electricity highways (380kV) over the next ten years and is in the process of modernising and expanding the capacity of 140 high-voltage substations.
Commenting in a release was Ab van der Touw, chair of Supervisory Board of TenneT Holding: “With the arrival of Dieuwert, business continuity in this key position in a socially dynamic context is secured.
“Among other things, Dieuwert brings valuable European experience in the areas of energy transition and performance transformation and will be of great help to ensure the cross-border synergies of TenneT Netherlands and Germany. I wish him an enjoyable and successful time at TenneT.”
TenneT restructuring
Since 1 January 2025, TenneT has been working in two independent organisations, TenneT Netherlands and TenneT Germany, both of which are part of the Group under a holding structure.
To reach a structural financing solution for TenneT Germany, two options are still being explored: either a private placement of shares or an initial public offering (IPO). TenneT says they are working closely with shareholders on this and a decision is expected in September 2025.
Inia’s appointment comes weeks after TenneT Germany appointed BP offshore wind chief Ina Kamps as its chief operating officer (COO) as part of the group’s restructuring efforts to separate into the Dutch and German entities.
Kamps joined Tim Meyerjürgens (CEO), Dr Markus Binder (CFO) and Kathrin Günther (chief technology officer (CTO)), to form the final four-person Executive Board of TenneT Germany.
The Executive Board of TenneT Holding consists of Manon van Beek as chief executive officer (CEO), Maarten Abbenhuis as COO and Arina Freitag as CFO, until Inia’s replacement on 1 January, 2026. They also hold these positions on the board of TenneT Netherlands.
Said Manon van Beek, CEO of TenneT Holding: “Arina plays a key role in securing the financial and structural repositioning of the company. With her leadership, TenneT has expanded its green financing strategy including the issuance of Europe’s largest corporate green bond tranches.”
“While we will continue to intensively collaborate in the next five months, I warmly welcome Dieuwert to the Executive Board.
“We are looking forward to working with him from 2026 onwards, which will be marked by an extensive investment programme and major steps towards a climate-neutral energy system that provides our society and economy with affordable energy independence and security.”
TenneT’s investments in Dutch and German grids amounted to €5.5 billion ($6.5 billion) in first six months of 2025.
The company also reported an underlying revenue in the first half-year of 2025 at €4.4 billion ($5.2 billion), up from €4.1 billion ($4.8 billion) in 2024 H1.
Underlying EBIT came to €1.5 billion ($1.8 billion), up from €1 billion ($1.2 billion) in 2024 H1.
