Zsaria is an associate with the Islands Energy Program at the Rocky Mountain Institute (RMI), where she supports renewable energy and resilience projects based primarily in the Caribbean region. A large part of her work is focused on the development of solar PV and BESS microgrid projects that aim to reduce fuel costs while also providing islands with increased resilience in the face of severe weather events.

In addition to this, she works on analyses aimed at understanding and advancing distributed energy resources in the Caribbean region. Prior to joining RMI, Zsaria was a part-time writer with a focus on renewable energy and sustainability. She published articles on topics such as geothermal energy, hydrogen, and e-mobility. She also served as an Editor Intern and Correspondent for the CESaRE Impacts magazine, a publication of the academic NGO, Journal of CESaRE, which aims to open closed-access research on environmental sciences and renewable energy in the Caribbean.