Greg Simmons is Guidehouse’s Director of Energy, Sustainability, and Infrastructure. As a recognized leader in sustainability and energy management, Greg has more than 20 years of experience meeting the complex challenges of large commercial, industrial, institutional, and governmental clients. His areas of specialization include greenhouse gas accounting, science-based target setting, climate risk mitigation, energy commodity supply, energy price risk management, carbon abatement, energy efficiency projects, onsite and offsite renewable energy, distributed energy solutions, and project finance.

Greg leads a worldwide practice focused on organizational decarbonization via the determination of existing climate impacts, the establishment of science-aligned sustainability ambitions, and the implementation of viable carbon abatement strategies. Greg’s clients include various US and international government agencies, multiple Fortune 1000 corporations, and numerous public and private organizations interested in advancing their sustainability objectives. As part of Guidehouse’s sustainability leadership team, Greg also heads Guidehouse’s programs relating to renewable energy and clean energy technologies for large end-users.

Before his role at Guidehouse, Greg held senior management positions at Siemens Building Technologies, Pepco Energy Services, and Equinor (formerly Statoil), focused on sales, account management, retail electricity, retail natural gas, energy consulting, and energy performance contracting.

Greg holds an MBA with a focus in corporate finance from the Robert H. Smith School of Business at the University of Maryland and a BS in Public Administration from George Mason University. Greg also received a certificate in Executive Integral Leadership from the Mendoza College of Business at the University of Notre Dame.