Brian Oldfield research investigated techno-economic feasibility analysis and optimization of implementing rooftop photovoltaic (PV) and battery energy storage system (BESS) at Colorado School of Mines. Brian got his MSc in Electrical Engineering and BSc in Mechanical Engineering from MIT. He is now a Senior Distribution System Planning Engineer at Xcel.  
https://www.linkedin.com/in/brian-oldfield-5ba4a056/