We are a diverse team of clean energy enthusiasts with a multi-GW track record. Our people have been involved in the value steps of origination, development, financing, construction, energy trading and asset optimization of clean energy assets across different countries.
We highly value local expertise and assemble strong local teams in our core markets.

Bekir Sami Acar

Managing Director ​​

Cleantech entrepreneur. 20 years of experience as a founder, executive and equity investor in the energy space. Over €2bn transaction experience across EMEA region. B.A. Political Science and International Relations Executive, MBA from Columbia Business School and London Business School.

Michiel Adriaanse

Managing Director ​​

17 years in investment banking and alternative asset management with ABN AMRO and Deutsche Bank. MSc. in electrical engineering from Delft University of Technology, executive MBA from London Business School and Certified Alternative Investment Analyst (CAIA).

Witalij Baginski

Investment Analyst

Prior to joining CLARITAS, Witalij managed the development of numerous RE projects across Poland. Witalij holds a Law degree from Mariupol State University.

Alix Chan, CFA

Investment Manager

Alix is an expert in global economics and the political economy of energy and climate change. Prior to joining Claritas, Alix worked for a major utility company, leading advisors and a private equity fund. Alix holds an MSc in Economics and Policy and Energy and Environment from UCL, and a BEng in Aeronautics from Imperial College London.

Anastasios Christakis

Managing Director

20 years of experience in the energy sector as EPC contractor, developer, lender and investor and early stage investor in energy tech. €10bn of closed transactions in North and South America and EMEA. Engineering degree and MBA from Imperial College London.

Halit Emre

Project Analyst

Emre is experienced in the execution process of PV projects including preparing layouts, supervision of the construction and O&M processes. Prior to Claritas, Emre worked as a project engineer in a leading solar EPC company for 3 years. Emre holds a bachelor’s degree in energy systems engineering.

Erdem Eskiil

Director of Project Execution

Erdem has more than 12 years of experience in energy utility, generation, and trading. He is experienced in project optimisation utilising both financial and technical solutions. Erdem holds an engineering degree from RWTH Technical University of Aachen, Germany.

Isavella Frantzi

Project Analyst

Isavella has a degree in Chemical Engineering and has previously worked as a Project coordinator for renewable energy projects. Prior to joining CLARITAS, Isavella supported the development of a pipeline of projects, including wind, hybrid and biogas projects.

Maria Karamitrou

Commercial Director

17 years of experience in commercial, marketing, and customer insight roles with blue-chip companies and consulting agencies in the UK and Greece. BSc in Business Information Systems, and MSc in Marketing Management from Bristol Business School.

Michal Kopys

Country Director, Poland

Michal has more than 20 years of experience in finance and corporate governance, as well as audit and controlling. Michal has been involved in the energy sector since 2001, supporting the development of various projects based on fossil and renewable resources. He holds a Master’s degree in Finance and Executive MBA from Polish universities.

Henk Labigar

Senior Accountant

Henk has 20+ years of accounting experience as financial controller and accounting supervisor with a solid track record in Sarbanes Oxley auditing for US listed companies. Bachelor’s degree in Accountancy and Tax Law from Markus Verbeek Amsterdam.

Dirk Lamottke

Managing Director

Dirk has 14 years of extensive experience in renewable energy business and 18 years as a commercial lawyer. Dirk is a certified renewable energy developer, holds a Law Degree from the University of Cologne, an MBA in sustainability management and executive education from Yale University.

Helene Saraber

Assistant Accountant

With over 20 years of experience Helene is responsible for the AR/AP administration of the group.

Nikolaos Siafakas

Director of Project Development,

15 years of experience in Solar Design Development, licensing procedures and Installation in projects of 750MW in Greece and internationally. Electrical & Electronics Engineer degree with MSc in Product Innovation and Development from University of Brighton, UK.

Katarzyna (Kasia) Sobotka

Investment Manager E-Mobility

Kasia’s extensive professional experience covers numerous projects in the field of innovation and electromobility in the CEE region. Prior to joining Claritas, Kasia worked for InnoEnergy, ABB and PKN Orlen building her experience in the emerging EV sector. Kasia is a graduate of the Warsaw University of Technology and is a laureate of multiple international awards.

Fragkiskos Zanios

Accounting Manager

Fragkiskos has 15 years of experience in Accounting and Finance, most of which as a Senior Accountant in the RES landscape. Fragkiskos holds a BSc in Accounting from the Technical University of Crete and has A’ Class signatory rights from the Greek Economic Chamber of Commerce and carries extensive hands on experience with IFRS.