Dr John Massey,

Managing Director, Grey Cells Energy Ltd.

It was the best investment I ever made for my professional development. John is a wonderful communicator and has the ability to translate the most complex technical matters into the simplest of words.Aun Mela, Renewable Energy Analyst, Saudi Aramco (KSA)

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∗ Education, Training & Coaching ∗

∗ Business Analysis & Strategy ∗

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Clean Power  •  Energy Storage 

Grid Evolution  •  Transport Electrification

I will without a doubt recommend John to anyone interested in the interplay between energy storage systems, electricity networks and energy markets, policies, procurement and regulations. Deon Fourie, Economist, IPP Office: DBSA, National Treasury and Dept. of Energy (South Africa)

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I not only would recommend him without reservations, but I have also been sending my team to his courses. Koo Cho, Head of Energy & Natural Resources - EMEA Loan Distribution, Crédit Agricole CIB (UK)

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He demonstrates a thorough understanding of the intricacies of the renewable energy business that is an extremely valuable resource to his clients. Brenden Marchewka, Project Development - Major Projects - Power/Renewables, Enbridge (Canada)

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It was exceptional. The themes were totally relevant and were explained with clarity and depth. Leonardo Monsalvo, Market Analyst, Energy Consultant & Business Development, Axis Energy (Argentina)

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