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 more than 15 years’ experience working on a wide variety of energy planning related issues, with a primary focus on integrated resource planning (IRP).

Chelsea Hotaling
Consultant
Chelsea specializes in modeling demand-side management resources within Integrated Resource Plans (IRPs), in the evaluation of IRPs, and in data analytics.
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.

Liz Bourguet
Consultant
Liz specializes in environmental policy analysis and has extensive knowledge of renewable energy, energy economics, and climate change mitigation policies.

Richard Faesy
Principal
As a Certified Energy Rater and LEED Accredited Professional, Richard specializes in residential buildings, technologies and markets.

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.
Work With Us
Learn more about open positions and what it’s like to work for EFG.