Sandia Energy > Programs > Electric Grid > Advanced Grid Modeling > Key Personnel Program Staff Contact an expert within Sandia’s Advanced Grid Modeling Program. NamePositionE-mailPhoneBrian J. Pierre, Ph.D.Manager, Electric Power Systems Research Departmentbjpierr@sandia.gov505-284-7955Bryan ArguelloSenior Member of Technical Staffbarguel@sandia.gov505-845-1114Joseph A. Azzolini, Ph.D.Senior Member of Technical Staffjazzoli@sandia.gov505-844-5321Michael Baca, Ph.D.Senior Member of Technical Staffmbaca2@sandia.gov505-284-8041Pedro Barba, Ph.D.Senior Member of Technical Staffpbarba@sandia.gov505-284-3209Logan BlakelySenior Member of Technical Stafflblakel@sandia.gov505-845-7827Raymond H. Byrne, Ph.D.Manager, Energy Storage Technology and Systemsrhbyrne@sandia.gov505-844-8716Hyungjin Choi, Ph.D.Senior Member of Technical Staffhchoi@sandia.gov505-884-8604Ryan T. Elliott, Ph.DSenior Member of Technical Staffrtellio@sandia.gov505-844-8663James F. EllisonPrincipal Member of Technical Staff jelliso@sandia.gov505-610-2239Manuel Garcia, Ph.DSenior Member of Technical Staffmgarc19@sandia.gov505-249-1085Ross GuttromsonPrincipal Member of Technical Staffrguttro@sandia.gov505-284-6096Javier Hernandez-Alvidrez, Ph.D.Senior Member of Technical Staffjherna4@sandia.gov505-284-2274Mathew J. HoffmanPrincipal Member of Technical Staffmjhoffm@sandia.gov505-844-4195Miguel Jimenez AparicioSenior Member of Technical Staffmjimene@sandia.gov505-206-3560Daniel James Kelly, Ph.D.Postdoctoral Appointeedjkell@sandia.gov505-284-8197Ronald C. Matthews Jr., Ph.D.Senior Member of Technical Staffrcmatth@sandia.gov505-845-7608Cody Jack Newlun, Ph.D.Senior Member of Technical Staffcjnewlu@sandia.gov505-284-7913Samuel T. Ojetola, Ph.DSenior Member of Technical Staffsojetol@sandia.gov505-250-3208Walker Phillip OlisMember of Technical Staffwolis@sandia.govMatthew J. Reno, Ph.D.Principal Member of Technical Staffmjreno@sandia.gov505-844-3087David A. Schoenwald, Ph.D.Principal Member of Technical Staffdaschoe@sandia.gov505-284-6285Adam SummersSenior Member of Technical Staffasummer@sandia.gov505-284-4113Rodrigo D. Trevizan, Ph.D. Postdoctoral Appointeerdtrevi@sandia.gov505-384-2449Stephen J. Verzi, Ph.D. Distinguished Member of Technical Staffsjverzi@sandia.gov505-844-0063Amanda Wachtel Senior Member of Technical Staffawachte@sandia.gov505-844-1962Jubair Yusuf, Ph.D.Senior Member of Technical Staffjyusuf@sandia.gov505-844-1758 Support Staff NamePositionE-mailPhoneAndrea Lynn ImrisekOffice Administrative Assistantalimris@sandia.gov505-845-8470