Skip to main content

Research Staff

NREL's Energy Systems Integration directorate includes the Power Systems Engineering Center, Computational Science Center, Cyber-Physical Systems Security and Resilience Center, and Energy Systems Integration Facility operations staff.

Photo of Bryan Hannegan

Bryan Hannegan

Associate Lab Director, Energy Systems Integration

Dr. Bryan Hannegan leads the lab's global initiative to optimize links among electricity, fuel, thermal, water, and communication networks to enable a more sustainable society. Prior to joining NREL, Dr. Hannegan held several research leadership positions in fossil fuel-based, renewable energy, and environmental science and technology at the Electric Power Research Institute, the nonprofit research and development arm of the electric power industry. | 303-275-3009

Photo of Art Anderson

Art Anderson

Laboratory Program Manager, Grid Integration

Art Anderson manages the lab’s programmatic contributions to the U.S. Department of Energy’s (DOE’s) Grid Modernization Initiative. His prior experience includes 9 years at Pacific Gas and Electric (PG&E), where he led the design and construction of PG&E’s Smart Meter Communications Laboratory, supporting one of the world’s largest smart meter deployment initiatives. | 303-384-6926


ESI Research Operations Director Chad Blake

Chad Blake

Energy Systems Integration Research Operations Director

Chad Blake provides strategic vision and leads the execution of science and technology research operations for the Energy Systems Inetgration Facility (ESIF), ensuring the safe, efficient, and effective conduct of research in grid modernization and energy systems integration. Since joining NREL in 2007, Blake has worked as a senior research project leader and served as ESIF operations manager for five years, providing technical and operational expertise to manage the daily operations of the ESIF's state-of-the-art research laboratories. | 303-275-3773 

Photo of Steve Hammond

Steve Hammond

Center Director, Computational Science

Steve Hammond develops and leads laboratory-wide efforts in high-performance computing and energy-efficient data centers. He initiates and oversees innovative research programs in computational science, mathematics, and scientific computing in support of NREL's DOE-based mission. This includes utilizing modeling and simulation to advance energy efficiency and renewable energy technologies and leading NREL's efforts in energy-efficient data centers. | 303-275-4121

Photo of Erfan Ibrahim

Erfan Ibrahim

Center Director, Cyber-physical Systems Security And Resilience

Dr. Erfan Ibrahim works with the public and private sector to identify security requirements; evaluate cybersecurity standards; test cybersecurity controls; and determine residual risk in smart networks in the electric, water, oil, and gas sectors. He also serves on the cybersecurity and resilience team within the Grid Modernization Lab Consortium for DOE. | 303-384-7433

Photo of Ben Kroposki

Ben Kroposki

Center Director, Power Systems Engineering

Dr. Ben Kroposki leads strategic research in the design, planning, and operations of electrical power systems. His expertise is in the design, testing, and integration of renewable and distributed power systems, and he has authored more than 100 publications in these areas. | 303-275-2979

Martha Symko-Davies

Director Of Partnerships, Energy Systems Integration

Dr. Martha Symko-Davies has developed more than 50 partnerships with key stakeholders to address the challenges of systems integration at all scales, from residential to utility. | 303-384-6528