The Power Invest team has over 50 years of collective experience in project development and implementation.

Our expertise, experience and relationships in the power industry combine to form a unique offering, shaped and guided by our leadership team.

Cees-Jan de Maaker, Director

BSc Engineering 

Cees-Jan is the CEO of CJM Management Consulting, and an entrepreneurial and tenacious leader with 25+ year track record in power generation, energy and industrial sectors. He is a senior executive with an extensive international business track record. Cees-Jan worked for 15+ years at General Electric (GE) with regional responsibilitiesin Europe, Middle East & Africa for business development and growth in new markets. He also spent more than 9 years at Thomassen International. He was part of the team that developed new markets in Europe & Asia with special focus on Power Generation. Before starting CJM Management consultancy he was an advisor for the Engro Corporation in Pakistan, on their global business development initiatives.

Hennie Steyn, Director

MSc Engineering Management, MIT Management, Research, Development & Technology InnovationMSc Engineering Management, MIT Management, Research, Development & Technology Innovation

Hennie is the CEO of Xaris Developments, and is an engineer and infrastructure developer with more than 30 years’ experience in asset management and infrastructure industries. He has worked across Africa, Middle East, Australia, New Zealand. He is a skilled project developer in the renewable energy, synthetic gas, thermal, and gas power arenas and focuses on complex infrastructure projects. He has specialist skills in operations as well as development of commercials covering EPC, OEM, O&M, PPA and related power agreements.

Peter Hertog, Director

BSc Mechanical Engineering 

Peter is the CEO of the Thomassen Group of companies, an energy supporting business for the Africa, Middle East and Pakistan region. After graduating in 1984 Peter started working for Thomassen International BV, The Netherlands a globally operating OEM supplier of gas turbines and gas compressors to the Electricity Refining and Oil and Gas industries. Peter has been based in Dubai, United Arab Emirates since 1992.

Gunther Freyer, CFO

BCom (Accounting) 

Gunther is the COO of Xaris and is an accountant with 23 years’ experience in banking and project development and a track record of developing specialized funding structures for companies in the petroleum and energy industries. He focuses on the procurement and structuring of project funding, financial reporting, taxation, negotiation of agreements (PPAs, FSAs, etc.), land acquisitions and the setting up of financial structures for power developments.