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This page features biographies for the members of the Office of Energy Efficiency and Renewable Energy (EERE) management. For more information, see the EERE organization chart.

Executive Leadership

Daniel R Simmons
Assistant Secretary
Daniel Simmons leads and directs EERE's work to advance the organization's mission.

Principal Deputy Assistant Secretary
This position supports EERE's Assistant Secretary in leading the organization.

Zachery Michael
Chief of Staff

Zachery leads strategic planning, policy, and communications, supporting the Assistant Secretary in advancing the mission of the office.

David Solan
Deputy Assistant Secretary for Renewable Power

David Solan directs EERE's renewable energy applied research, development, and demonstration activities for the geothermal, solar energy, and wind and water power technology offices. In addition, he oversees EERE's energy system integration efforts.

Alex Fitzsimmons
Deputy Assistant Secretary for Energy Efficiency
In this position, Alex leads a diverse energy efficiency program and R&D portfolio that includes advanced manufacturing, building technologies, federal energy management, low-income weatherization, and intergovernmental partnerships. As part of EERE's senior leadership, Alex advances administration priorities and initiatives to improve the energy efficiency of America’s homes and businesses, and strengthen the energy competitiveness of the U.S. manufacturing sector.

Bindu Jacob
Deputy Assistant Secretary for Operations and Strategic Innovation

Bindu Jacob directs EERE's business operations, including budget, IT, project management, strategic programs, the laboratory policy group, and workforce management. In addition, she oversees the Golden Field Office in Golden, Colorado and leads strategic initiatives to improve the way EERE conducts its daily operations.

Michael Berube
Deputy Assistant Secretary for Transportation (Acting)
Michael Berube oversees EERE’s Sustainable Transportation sector. This portfolio focuses on research and development to increase access to domestic, clean transportation fuels and improve the energy efficiency, convenience, and affordability of transporting people and goods.

Technology Sector Leaders

Sustainable Transportation

David Howell
Vehicle Technologies Office Director (Acting)

David Howell leads initiatives and programs that help reduce America's dependence on foreign oil and secure a clean energy future. The Vehicle Technologies Office supports research for hybrid drivetrains, advanced batteries, lightweight materials, advanced combustion and fuels, vehicle systems integration, and Clean Cities deployment activities.

Sunita Satyapal
Hydrogen and Fuel Cell Technologies Office Director

Sunita Satyapal leads the Office's overall strategy and execution, including oversight and coordination of about $150 million in research, development, demonstration, and deployment activities related to hydrogen and fuel cells.

Michael Berube
Bioenergy Technologies Office Director (Acting)

As Acting Director, Michael Berube leads the Office's overall strategic, technical, and project oversight of efforts to improve performance, lower costs, and accelerate market entry of advanced biofuels and bioproducts, which can help reduce America's imports of oil while enabling a new industry with an improved environmental impact.

Renewable Electricity Generation/Renewable Power

Susan Hamm
Geothermal Technologies Office Director

Susan Hamm leads the Office's overall strategic, technical, and project oversight of cutting-edge technologies designed to advance geothermal as a key contributor to the U.S. energy portfolio. She partners with industry, academia, and DOE's national laboratories to establish geothermal energy as an economically competitive and widely available component of the U.S. energy supply.

Becca Jones-Albertus
Solar Energy Technologies Office Director

Becca Jones-Albertus leads a team that supports early-stage research and development in the technology areas of photovoltaics, concentrating solar-thermal power, and systems integration with the goal of improving the affordability, reliability, and performance of solar technologies on the grid.

Bob Marlay
Wind Energy Technologies Office Director

Bob leads the Wind Energy Technologies Office to improve performance, lower costs, and accelerate deployment of wind technologies.

Alejandro Moreno
Water Power Technologies Office Director

Alejandro Moreno manages efforts to improve performance, lower costs, and accelerate deployment of water power technologies.

Energy Efficient Homes, Buildings, and Manufacturing

David Nemtzow
Building Technologies Office Director 

David Nemtzow leads the Building Technologies Office to create a self-sustaining market for building energy efficiency, including advancing technologies, promoting highly efficient buildings and homes, and accelerating the adoption of building codes and equipment standards. 

Leslie Nicholls
Federal Energy Management Program Office Director

Leslie Nicholls oversees the implementation of policy and actions that result in energy efficiency implementation, renewable energy adoption, and reduction in energy and water use in federal government operations.

Valri Lightner
Advanced Manufacturing Office Director (Acting)

Valri Lightner leads the Office in creating a fertile innovation environment for advanced manufacturing, enabling vigorous domestic development of new energy-efficient manufacturing processes and materials technologies to reduce the energy intensity and life-cycle energy consumption of manufactured products.

Anna Garcia
Weatherization and Intergovernmental Programs Office Director

Anna Garcia provides leadership to maximize the benefits of energy efficiency and renewable energy through technology deployment, accessing new partnerships and resources, and communications and outreach activities.

Strategic Program Leaders

Strategic Programs Director 

This position oversees strategic communications, legislative affairs, stakeholder engagement, and policy and analysis functions.

Sarah Garman
Strategic Priorities and Impact Analysis Director
Sarah Garman leads the team that provides consistent, objective and credible analysis for EERE's activities--from market to impacts analysis--and explains the effect of various policies on EERE's mission.

Support Office Leaders

Budget Office

Sabrina Campbell
Budget Director (Acting)

In this position, Sabrina Campbell leads the development of EERE's corporate budget and oversees how it is executed.

Business Operations

Christy Cooper
Business Operations Director (Acting)

In this position, Christy manages EERE's daily operations.This includes overseeing Workforce Management, Project Management Coordination, and Information Technology Services to ensure their efforts are aligned, effective, and responsive to the organization's needs.

Genevieve Wozniak
Project Management and Coordination Office Director (Acting)

Genevieve Wozniak leads and facilitates unified and highly effective EERE corporate planning and program implementation through the identification and deployment of active project management policies, procedures, best practices, and lessons learned.

Kara Peralta
Workforce Management Office Director

Kara Peralta leads the coordination with the Office of Human Capital, in addition to diversity, workforce strategy, talent management, facilities, and administrative support. All of these functions provide essential support to EERE's corporate business processes and mission.

Steve VonVital
Information Technology Services Office Director 

Steve Von Vital oversees EERE's Information Technology Services Office, providing information technology and business management systems support and ensuring IT investments are aligned, integrated, effective, and responsive to the organization's needs.

Derek Passarelli
Golden Field Office Director

Derek Passarelli leads EERE staff in Golden, Colorado in moving toward a low-carbon, energy-secure economy. He oversees Golden’s operations and support functions, as well as the management and operation contract with the National Renewable Energy Laboratory.

Procurement Operations Division Director

This position oversees three Golden Field Office areas that provide the necessary business services to support EERE offices, programs, and national laboratories conducting EERE work. 

Marlys Kinsey
Business Services Division Director (Acting)

Marlys oversees the Financial, Environment, Safety and Health and National Laboratory Oversight activities that provide the necessary business services to support EERE technology and operations offices, as well as the National Renewable Energy Laboratory, in conducting EERE work.