James Nelson

Energy Modeler

Jimmy Nelson joined the Union of Concerned Scientists’ Climate and Energy Program in 2013 and currently works as an energy modeler from UCS’s Oakland office. Prior to his current position, Dr. Nelson was a UCS Kendall Science Fellow. 

Dr. Nelson’s work explores scenarios for the electric power system of California that increase the amount of clean energy deployed in the region, while also reducing greenhouse gas emissions from the energy system. He uses industry-standard power system simulation models, including the PLEXOS production cost model. During his time at UCS, Dr. Nelson has submitted modeling testimony on renewable integration as an expert witness in the California Public Utilities Commission’s Long-Term Procurement Plan. 

Dr. Nelson earned his Ph.D. from the Energy and Resources Group at the University of California, Berkeley, where he researched electricity transmission, generation, and storage planning, and received a Link Energy Fellowship. He received a M.S. in chemistry, also from the University of California, Berkeley, and a B.S. in chemistry from Haverford College in 2006. 

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