Vagelis Vossos

(510) 495-2521

Vagelis Vossos is a Program Manager for the Energy Efficiency Standards Group. He joined the Lawrence Berkeley National Laboratory in 2011.

Vagelis’ main focus is to provide technical support for energy conservation standards and test procedure development for the U.S. Department of Energy’s appliance and equipment standards program. Current projects include commercial refrigeration equipment and DC power distribution in buildings, while in the past, Vagelis has worked on lighting products, commercial & industrial fans, fume hoods, and circulating pumps.

Prior to joining LBNL in 2011, Vagelis was an energy analyst for EMCOR Energy Services and the City of Oakland. Vagelis’ area of interest is renewable energy and solar PV systems.





Vossos, Vagelis, Stephen Pantano, Ruby Heard, and Richard E Brown. "DC Appliances and DC Power Distribution: A Bridge to the Future Net Zero Energy Home." 9th International Conference on Energy Efficiency in Domestic Appliances and Lighting . 2017. LBNL-2001084.


Johnson, Karl, Vagelis Vossos, Margarita Kloss, Gerald Robinson, and Richard E Brown. "Direct Current as an Integrating Platform for ZNE Buildings with EVs and Storage: DC Direct Systems - A Bridge to a Low Carbon Future." ACEEE 2016 Summer Study on Energy Efficiency in Buildings. Pacific Grove, California, 2016. LBNL-100705.


Vossos, Vagelis, Karina Garbesi, and Hongxia Shen. "Energy savings from direct-DC in U.S. residential buildings." Energy and Buildings Volume 68, Part A (2014) 223–231.


Garbesi, Karina, Vagelis Vossos, and Hongxia Shen. Catalog of DC Appliances and Power Systems. Lawrence Berkeley National Laboratory, 2011. LBNL-5364E.
Garbesi, Karina, Vagelis Vossos, Alan H Sanstad, and Gabriel Burch. Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings. Berkeley: Lawrence Berkeley National Laboratory, 2011. LBNL-5193E.