
Van Doorne ‘combines deep sector-specific knowledge with broad experience’ on landmark energy transition projects. Practice co-head Léone Klapwijk assists on project development, licensing, and contractual matters within the power generation, electricity supply, and carbon transition spaces. Diederik Maessen, who also co-leads the team, is a key contact on the development of hydrogen and carbon capture projects, as well as the acquisition and disposal of battery storage assets. Victor van Ahee offers ’unparalleled’ regulatory knowledge, demonstrating particular engagement with low-carbon power and fuel projects. Ellis Martens supports on electricity sector regulation and contracts.
\nTestimonials
Collated independently by Legal 500 research team.
- 'The team combines deep sector-specific knowledge with broad experience across the energy industry, which allows them to advise on both complex transactions and regulatory challenges.'
- 'Ellis Martens combines diligence and a strong work ethic with the ability to deliver thoughtful and practical input at the right moments. Her proactivity and thoroughness made a clear difference in the quality of the advice received and in the smoothness of the overall process.'
- 'Victor van Ahee has an unparalleled knowledge of regulatory frameworks.'
- 'Diederik Maessen goes through a burning fire for his clients, identifying both legal and economical risks and solutions.'
- 'Léone Klapwijk is a very dedicated and intelligent lawyer and very keen to serve and defend the interests of her clients, combined with diplomatic persuasive skills to get to an agreement with others.'
- 'Léone Klapwijk, Victor Van Ahee and Diederik Maessen lead the team by example. They have a constructive, get-the-deal-done mentality.
Key clients
- Vopak
- Gasunie
- Shell International B.V.
- TotalEnergies
- Port of Rotterdam
- EBN
- Ingka
- Vattenfall AB
- EemsEnergy LNG Terminal
- Gate LNG Terminal
- LyondellBasell
- Eneco
Work highlights
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
Léone Klapwijk; Diederik Maessen
Other key lawyers
Victor van Ahee; Ellis Martens

