Power Invest

About Us



CJM Management Consultancy

is a United Arab Emirates based company situated in Dubai. CJM brings 25+ years of knowledge and a powerhouse of cutting edge business solutions to play in answering real business challenges through innovative thinking and deep industry knowledge in the Energy and Power Sector.


was founded in 2010. It created a specialist arm for power project development, facilitating the structuring, development and management of fixed asset infrastructure with a strong focus on sustainable power solutions for emerging markets.

Thomassen Group

was founded in 1998 and today invests in power plants and is an Operations & Maintenance (O&M) specialist. Thomassen has been responsible for the O&M of gas turbine based power plants in excess of 2,600 MW in the Middle East and Africa since the year 2000.

Power Invest as your IPP partner

PID offers creative solutions for your power requirements

- Develop thermal and renewable power projects
- LNG infrastructure development
- Operations & Maintenance

We Are Not Just a Team, We Are a Family


Cees-Jan De Maaker

Cees-Jan is the CEO of CJM Management Consultancy and Director of Power Invest DMCC with over 30 years track record developing projects in power generation, energy and the industrial sectors. He has been the executive lead for business development and growth for both GE for over 15 years and Thomassen International for almost a decade in the markets of Europe, Asia, Middle East and Africa for over 25 years. Prior to starting CJM Management Consulting he was an executive advisor for the Engro Corporation in Pakistan for their global business development.


Hennie Steyn

Hennie is the CEO of Xaris and a director for Power Invest DMCC. His experience of over 30 years in infrastructure development and asset management has been gained throughout Africa, Middle East, Australia and New Zealand. He has been involved in many different power project developments covering areas such as renewable, gas and thermal power generation. His experience covers the full range of project development, from concept level studies all the through to commissioning and operations management.


Peter Hertog

Peter is the owner and CEO of the Thomassen Group of Companies, an Energy supporting business for the Africa, Middle East and Pakistan region. The Thomassen Group of companies has a team of professionals and power plant related investments and after sales service operations across the Middle East and Africa. Peter was a member of the Board of Directors, from the date of privatization in December 2005 till May 2009, of Karachi Electricity Supply Company (KESC) producing 2300MW of electrical power for Karachi, Pakistan. Peter was also involved in the privatization of the Nigerian power sector and positioned Thomassen as a technical partner for the 900MW Ughelli power plant.


Günther Freyer

Günther has 35 yrs experience in accounting, taxation and finance, including the last 20 years as CFO / financial director and co-shareholder of various private companies involved in the development of power and fuel related infrastructure projects. He is experienced in various funding structures, including asset-based finance and non-recourse project finance, and is integrally involved in the development of energy projects. He leads the financial functions related to reporting, taxation, negotiation of agreements (PPA’s, FSA, funding term sheets etc.), land acquisitions and the setting up of the company structures for the Power Invest infrastructure developments globally.