Our Team
Our team of consultants is experienced, passionate, and fun to work with. Together, EFG covers a broad range of issues, from planning and regulation of utilities, to the nature of their supply and demand-side energy resource challenges, to the policies and market structures under which they operate.
Team Members
Learn more about our team and expertise.
IRP Team

Anna Sommer
Principal
Anna has 20 years’ experience working on a wide variety of energy planning related issues, with a primary focus on integrated resource planning (IRP).

Drew Siebenaler
Managing Consultant - Transmission
Drew has over 14 years of experience working on a wide variety of issues related to transmission and long-range planning.

Chelsea Hotaling
Senior Consultant
Chelsea specializes in grid modeling using integrated resource planning and resource adequacy tools.

Nina Peluso
Senior Consultant
Nina is an experienced policy analyst, energy systems modeler, and program manager.

Carlos Peña
Senior Analyst
Carlos is an electrical engineer and researcher with knowledge in renewable energy systems, microgrid design, agent-based modeling, and energy resilience.
DSM Team

Chris Neme
Principal
Chris specializes in analysis of markets for energy efficiency, renewable energy and strategic electrification measures and the design and evaluation of programs and policies to promote them.

Dan Mellinger
Principal
Dan specializes in the design, planning and administration of commercial and industrial energy efficiency programs, with expertise in lighting technologies.

David Hill
Managing Consultant
David is known nationally for his advancement of sustainable energy program design and evaluation, and renewable energy policy.

Jim Grevatt
Managing Consultant
Jim brings over 25 years’ experience as a leadership professional in energy efficiency program operations to his consulting practice.

Richard Faesy
Principal Emeritus
Richard has over 35 years’ experience specializing in residential buildings, technologies, markets, and programs.

Scott Reeves
Managing Consultant
Scott brings over 18 years of research experience aimed at improving energy program strategy and performance, with expertise in equity-focused clean energy planning and evaluation, non-energy benefits, and demand response.

Stacy Sherwood
Principal
Stacy brings over a decade of experience in the energy industry, specializing in energy efficiency, demand response, automated metering infrastructure, cost recovery, and renewable energy.

Zack Tyler
Managing Consultant
Zack has 15 years of experience in the energy industry with a focus on energy efficiency program evaluation, market research, and market transformation efforts. He specializes in building decarbonization and building energy codes.
Administrative Team

Mariana Du Brul
Administrative Manager
Mariana makes use of her interdisciplinary professional experiences to keep EFG’s finances on track and the office running smoothly.

Chrissy Bedard
Administrative Specialist
Chrissy comes most recently from the healthcare publishing space, and is bringing her technical and organizational expertise to bear supporting company operations and streamlining processes.
Work With Us
Learn more about open positions and what it’s like to work for EFG.