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Tessa Weiss

Tessa Weiss

  • Climate Aligned Industries

Tessa Weiss is an Associate in the Breakthrough Technologies program at RMI, where she works to accelerate the implementation of up-and-coming technologies with major potential to impact global decarbonization. Her current focus is supporting work on green hydrogen and green steel.


Prior to joining RMI, Tessa studied mechanical engineering at the Massachusetts Institute of Technology (MIT). There she gained a broad understanding of various clean energy technologies by designing small-scale nuclear reactors, analyzing the energy efficiency of buildings, researching thin film solar cells, and modeling urban energy flows.

Tessa has also taken a significant interest in grassroots community organizing and climate activism. She founded a fossil fuel divestment effort while at MIT and leads a student engagement team at ClimateVoice, a nonprofit that mobilizes the workforce to encourage companies to take action on climate.


B.S., Mechanical Engineering, Massachusetts Institute of Technology


Boulder, CO

Authored Works
Oil refinery and gas processing plant

Growing Gigawatts of Green Hydrogen

Of all the technologies unleashed in the energy transition, few have generated the level of excitement that green hydrogen has. As a potential enabler of economically viable, zero-carbon solutions for everything from steel manufacturing to marine shipping, green hydrogen is positioned as a cure-all for the “hard-to-abate” sectors. This has…