Sandia Energy > Programs > Electric Grid > Renewable Energy and Distributed Systems Integration > Key Personnel > Summer Ferreira, Ph.D. Summer Ferreira Ph.D. Manager, Renewable Energy and Distributed Systems Integration Contact InformationSummer Ferreira / 505-844-4864BiographyDr. Summer Ferreira is the Manager for the Renewable and Distributed Systems Integration program, which promotes the research and development of technologies that enable grid modernization and resiliency, along with the large-scale deployment of renewable and distributed energy sources. Prior to her role at RDSI, beginning in 2011, Summer led the Energy Storage Analysis Laboratory at Sandia in support of the DOE Office of Electricity program, after spending the two previous years here at a postdoctoral researcher in hybrid organic/inorganic photovoltaics.Education Ph.D. in Materials Science and Engineering from the University of Illinois Urbana-Champaign Bachelor Science, Materials Engineering from the New Mexico Institute of Mining and Technology Google Scholar:Summer FerreiraKey Publications2020 Yuliya Preger, Heather M Barkholtz, Armando Fresquez, Daniel L Campbell, Benjamin W Juba, Jessica Romàn-Kustas, Summer R Ferreira, Babu R Chalamala, “Degradation of Commercial Lithium-ion Cells as a Function of Chemistry and Cycling Conditions, Journal of the Electrochemical Society,” 2020.2019 Summer Ferreira, Yuliya Preger, Armando Fresquez, Heather Barkholtz, Frank Austin Mier, Babu R Chalamala, “Insights from a Comprehensive Commercial Lithium Ion Battery Cycling and Aging Study,” ECS, 2019. Y Preger, A Fresquez, BR Chalamala, S Ferreira, “Degradation of Commercial Lithium-Ion Cells Beyond 80% Capacity,” ECS, 2019.