Tassos Golnas is a Technology Manager for the Systems Integration team, joining the Solar Energy Technologies Office (SETO) in April 2016. His primary focus is solar power forecasting as a means for cost-effective integration of PV in the electric grid. His interests span the areas of PV system modeling, performance, monitoring, and reliability. Previously, he consulted for the World Bank Group. His solar career began at SunEdison in 2008 as a New Technologies Analyst. He later became the Senior Manager of the Energy Analytics Group, which developed algorithms for event detection, power forecasting, and inverter control, and generated analyses on power output variability and system reliability. In 2014, he became the Director of the Performance Analytics Group, which was responsible for all performance reporting, analysis, and optimization. Prior to SunEdison, he worked for seven years in the semiconductor equipment and photonics industries as an R&D development manager and  engineer.

Tassos came to the U.S. in 1994 to earn a Ph.D. in Materials Science and Engineering at Stanford University. He lived in the San Francisco Bay Area until 2003, before moving to Chicago and finally to Maryland in 2007. He holds a B.S. in Physics from the Aristotle University in Thessaloniki. He has authored 11 papers on PV system analysis and holds four patents in sensors and process integration.