At Green Power Academy we work with industry experts across the globe to ensure all of our courses are delivered to the highest of standards. Find out more about each trainer below:


John Massey
Director, Green Cells Energy Ltd.

John is a respected energy business analyst & trainer with over 25 years’ commercial experience in industry research, analysis, intelligence and education, plus an outstanding academic background in both natural sciences and economics.

John's experience has spanned both the energy and telecoms/IT industries, leading to his current focus on how the increasing convergence of the two will bring major change to the way electricity is generated, distributed and consumed. He has helped senior business-people in over 25 countries across 5 continents, representing a wide variety of organisations from start-ups to the world’s biggest corporations, by focusing on the interconnection of key business variables within markets: disruptive technology change, policy and competitive context, market structures, investment drivers and returns.


Christian Erich Grütte

Christian Erich Grütte
Advisor Power & Renewable Energy

Christian Erich Grütte is an independent investment & financial advisor with more than ten years’ experience in the renewable energy sector. He successfully supported leading utilities, IPPs and financial investors to build pipelines of international renewable energy projects by identifying suitable local partners. His specific experience includes the market entry assessment of regulatory and development risk in countries around the globe.

Further, he is focused to work with independent developers to create the ability of renewable energy projects to be presented both to equity sponsors and debt lenders and reaching financial close. Christian is a recommended speaker at leading international renewable energy conferences and one of Green Power Academy’s core team of executive trainers on investment and financing topics. He has delivered a range of financing courses and our acclaimed Green Power Mini-MBA programme to students across Europe as well as in the US, Chile, South Africa, Dubai and Brazil. He holds an MSc in Industrial Engineering and Management from the Technical University of Berlin and currently serves as a lecturer in the Renewable Energy Finance Studies Program of the Frankfurt School of Finance and Management.


Joachim Baumgaertner

Joachim Baumgaertner
Managing Director at Green Rhino Energy Ltd

Joachim Baumgaertner is the founder and managing director of Green Rhino Energy, an independent specialist consultancy advising companies in clean energy across the value chain and technologies. He brings project ideas to fruition by bridging complementary areas of renewable energy technologies, project finance and experience in project development. Joachim has been involved as both consultant and developer in utility-scale solar and wind power, solar greenhouses and wasteto- energy plants with a focus on Africa, including South Africa, Zimbabwe, Ghana, Sierra Leone, Egypt, and Namibia.  Joachim has been part of a team winning project competitions held at “Making Solar Bankable” in Amsterdam and “Africa Energy Forum” in London 2016 for the development of a solar portfolio in Sierra Leone. Joachim was featured on 21st Century Business TV shown on CNBC Business and Fox Business.