Greg Callman

Greg is Global Head of Storage and Energy Technology in MAM Green Investments. He leads infrastructure development and corporate equity investments across grid scale energy storage, distributed energy, fleet electrification, and residential energy. 

He joined Macquarie from Tesla, where he led the growth of the company’s energy storage business and charging infrastructure programs in the US, Europe, and ANZ. Previously, Greg served at the US Department of Energy, both within ARPA-E and the Recovery Act Team. Greg began his career as an advisor to organizations investing in emerging markets and post-conflict countries. 

He holds a Master of Arts from the Johns Hopkins School of Advanced International Studies (SAIS) and was an interdisciplinary Echols Scholar at the University of Virginia, focused on biochemistry, genetics, and evolutionary biology.