Michael Hagerty
-
principal
-
Washington, DC
Mr. Hagerty specializes in planning and regulatory matters related to the electric power system in an increasingly decarbonized future.
His expertise includes long-term generation and storage resource planning, transmission planning and development, and electrification of transportation and heating. Mr. Hagerty has experience working on matters related to electric vehicle adoption and system impact analysis; renewable resource, generation, and storage asset valuation; decarbonization policies; and transmission benefit-cost analysis.
He has assisted a wide range of stakeholders – including electric utilities, generation and transmission developers, state agencies and commissions, automakers, and regional transmission organizations (RTOs) – in understanding and evaluating strategic questions related to the clean energy transition. This has included planning the buildout of the transmission network, assessing the future generation resource mix, and analyzing the pace and impact of electric vehicle (EV) and heating electrification adoption. He has also forecasted scenarios for the deployment of EV charging infrastructure necessary to meet increasing demand and customer adoption of greenhouse gas-reducing technologies, such as electric heat pumps, energy efficiency, and rooftop solar.
Mr. Hagerty has submitted testimony to state and federal commissions related to generation resource additions to achieve decarbonization goals, electric vehicle infrastructure needs, transmission planning processes and benefits analysis, and electricity market design. For the US Department of Energy, he has reviewed and outlined major issues facing the country’s electric power infrastructure.
Prior to joining Brattle, Mr. Hagerty was a research assistant at the MIT Energy Initiative, an oil refinery process engineer at Honeywell, and a research chemist at GE Global Research.
Massachusetts Institute of Technology
MS in Technology and Policy
University of Notre Dame
BS in Chemical Engineering
Mike lives in Maryland with his wife Ellen and four kids, Jack, Connor, Maeve and Sophie. In his free time, he enjoys coaching his kids’ sports teams, hiking in the Adirondacks, and downhill skiing whenever there is snow nearby.
Testimony
Before the Federal Energy Regulatory Commission, Docket No. EL25-109-000, Prepared Direct Testimony of Johannes P. Pfeifenberger and John Michael Hagerty on behalf of Midcontinent Independent System Operator, Inc. (MISO), regarding the cost-benefit analysis that MISO conducted, and its Board of Directors relied upon, to justify approval of a group of transmission projects as Multi-Value Projects in MISO’s2024 Transmission Expansion Plan, September 9, 2025.
Before the Public Service Commission of Wisconsin, Docket 6630-CE-316, Rebuttal Testimony of John Michael Hagerty on behalf of Wisconsin Electric Power Company, regarding the Application of Wisconsin Electric Power Company for a Certificate of Public Convenience and Necessity to Construct and Operate the Paris Reciprocating Internal Combustion Engines Project, Consisting of Seven Natural Gas-Fired Reciprocating Internal Combustion Engines Generating up to 128 MW Total at the Lakeshore Capacity Improvement Project Regulator Station in the Town of Paris, Kenosha County, Wisconsin, January 17, 2025.
Before the Public Service Commission of Wisconsin, Docket 6630-CG-140, Direct Testimony of John Michael Hagerty on behalf of Wisconsin Electric Power Company, regarding the Application of Wisconsin Electric Power Company for a Certificate of Authority under Wis. Stat § 196.49 and Wis. Admin. Code § PSC 133.03 to Construct a New Liquified Natural Gas Facility and Associated Natural Gas Pipelines in Oak Creek, Wisconsin, December 12, 2024.
