Keegan Werlin LLP provides expert legal counsel for energy facility development, regulation, and compliance. Based in Lexington, MA, we serve clients across New England in navigating permitting, land use, and environmental compliance for energy infrastructure projects. Our team offers strategic, results-driven solutions for the energy industry. Energy Facilities Siting & Permitting Overview Siting and licensing critical energy infrastructure in New England has become increasingly complex in recent years. Groundbreaking changes in the permitting landscape, such as the Massachusetts Green Communities Act (2008), Global Warming Solutions Act (2008), Climate Change Act and Roadmap Law (2021), and the most recent Clean Energy Act (2022), have instituted complex requirements and new opportunities for critical energy infrastructure facilities, including, but not limited to electric transmission networks, wind power, solar resources, large-scale battery storage systems, and next-generation electric transmission equipment. KW’s team has been at the forefront of successfully implementing and ensuring compliance with these crucial energy and environmental objectives on behalf of clients throughout the region. The interrelated array of federal, state and local siting and permitting standards requires extensive knowledge of the applicable statutory enactments and regulatory requirements to represent investor-owned utilities and private developers in New England effectively. KW has an unmatched team of legal professionals with over 30 years of experience permitting the most complex array of projects, such as innovative new substation facilities to address sea-level rise, energy storage systems to ensure reliability of electricity, renewable energy facilities such as solar and wind generation, and needed transmission infrastructure to power the New England economy, including the electrification necessary to support the region’s climate change and carbon reduction goals. KW attorneys also have extensive experience defending client interests in state and federal courts when challenged by project opponents. KW’s team-based approach with a demonstrated track record in the areas of environmental science, economics, and state and local land-use requirements ensures that necessary energy infrastructure is permitted and developed in an efficient and successful manner to meet the overarching business objectives of our clients.

Peter is a senior associate in the firm’s energy facilities siting and permitting practice. Before joining the firm in 2024, Mr. Madsen worked in the energy practice group at a large, national law firm, representing public utilities and energy companies in a variety of regulatory matters before state public utilities commissions, including utility ratemaking proceedings, obtaining approvals for large energy facility siting and permitting, regulatory compliance... Administrative & Energy Law; Public Utilities Peter is a senior associate in the firm's energy facilities siting and permitting practice. Peter E. Madsen Phone: 617-951-1400 Email: pmadsen @keeganwerlin.com ● Administrative Law ● Energy Law ● Public Utilities Bar Admissions U.S. District Court District of MN Minnesota Colorado Massachusetts Before joining the firm in 2024, Mr. Madsen worked in the energy practice group at a large, national law firm, representing public utilities and energy companies in a variety of regulatory matters before state public utilities commissions, including utility ratemaking proceedings, obtaining approvals for large energy facility siting and permitting, regulatory compliance, contested case proceedings, and other administrative proceedings and related appeals. Prior to moving to private practice, Mr. Madsen served as an assistant attorney general in the Minnesota Attorney General's Office and primarily represented a state agency in a wide variety of energy and public utility regulatory matters before the Minnesota Public Utilities Commission, including general rate case and certificate of need proceedings for large energy infrastructures, such as transmission lines and crude oil pipelines. Mr. Madsen received his Juris Doctor from the Mitchell Hamline School of Law (formerly the Hamline University School of Law) with honors. While in law school, Mr. Madsen was the Operations Editor as well as an Associate Editor of the Hamline Law Review . Mr. Madsen received his Bachelor of Arts in economics from the Miami University in Oxford, Ohio. Education Mitchel Hamline School of Law, St. Paul, Minnesota, J.D., cum laude, 2011 Operations Editor and Associate, Hamline Law Review Miami University, Oxford, Ohio, B.A. Economics, 2003 Recognitions Honoree, Best Lawyers , Ones to Watch, 2022 - 2027 Honoree, Top Lawyers, Administrative/Regulatory Law, Minnesota Monthly , 2024 Associations Minnesota State Bar Association Hennepin County Bar Association

Mr. Hershberg received his Juris Doctor from Vermont Law School, where he served on the Student Bar Association as a Senator focusing his efforts to bridge the gap between the Vermont Law School student body and the Town of South Royalton. Energy Law & Public Utilities Michael B. Hershberg is an associate at Keegan Werlin LLP, where he specializes in energy, regulatory, and public utility law. He represents the firm’s utility clients before the Department of Public Utilities. Michael B. Hershberg Phone: 617-951-1400 Email: mhershberg@keeganwerlin.com ● Energy Law ● Public Utilities Bar Admissions Massachusetts Connecticut New Hampshire Mr. Hershberg received his Juris Doctor from Vermont Law School, where he served on the Student Bar Association as a Senator focusing his efforts to bridge the gap between the Vermont Law School student body and the Town of South Royalton. During his time in law school, he also worked as a Student Clinician at the South Royalton Legal Clinic supporting lower income communities in civil disputes and Asylees in Immigration matters, interned for the Irish International Immigrant Center in Boston, and worked for the Suffolk County District Attorney’s Office in Chelsea. Mr. Hershberg received his Bachelor of Arts in political science from Stonehill College in Easton. At Stonehill, he was a member of the Pi Sigma Alpha National Political Science Honor Society. He brings a wide berth of experience to the firm; Mr. Hershberg previously worked on Transmission Right of Way matters at Georgia Power Company and most recently as a project manager for Volta Charging, an Electric Vehicle charging infrastructure start-up where he worked closely with municipalities and appeared before municipal boards to expand access to public charging. In addition to his work at the firm, he serves on both the Zoning Board of Appeals and the Earth Removal Board in the Town of Sudbury. Education Stonehill College, Easton, Massachusetts B.A., 2013 Vermont Law School, South Royalton, Vermont, J.D., 2016

Ms. Tisler received her Juris Doctor from The University of Toledo College of Law with a Certificate in Environmental Law. While in law school, Ms. Tisler participated in Moot Court and was the Assistant Managing Editor of The University of Toledo Law Review.  Ms. Tisler authored and co-authored two environmental law articles published in The University of Toledo Law Review. Administrative & Energy Law; Public Utilities Ms. Tisler advises public utilities on legal and regulatory issues related to energy procurements, renewable energy, grid modernization, energy efficiency, and rate cases. Tiffany N. Tisler Phone: 617-951-1400 Email: ttisler@keeganwerlin.com ● Administrative Law ● Energy Law ● Public Utilities Bar Admissions Connecticut U.S. District Court of Connecticut Prior to joining the firm, Ms. Tisler worked as a Staff Attorney at the Connecticut Public Utilities Regulatory Authority, advising on proceedings related to renewable energy, electric vehicles, energy affordability, reliability and resilience, grid modernization, rate adjustments, annual reconciliations, revenue requirements, company restructuring, and investigations. Ms. Tisler completed a Certificate in Financing and Deploying Clean Energy from Yale University. Ms. Tisler also has experience in civil litigation and court operations. Ms. Tisler received her Juris Doctor from The University of Toledo College of Law with a Certificate in Environmental Law. While in law school, Ms. Tisler participated in Moot Court and was the Assistant Managing Editor of The University of Toledo Law Review. Ms. Tisler authored and co-authored two environmental law articles published in The University of Toledo Law Review. Ms. Tisler received her Bachelor of Arts in political science, zoology, and environmental science from Miami University in Oxford, Ohio. In addition to her professional accomplishments, Ms. Tisler maintains an interest in international travel and experiences after living and working abroad for several years. Education Yale University, Certificate in Financing and Deploying Clean Energy, 2022 The University of Toledo College of Law, J.D., 2011, cum laude Miami University, B.A. in Political Science, Zoology, and Environmental Science, 2008, magna cum laude

Ms. Winter’s representation of electric and gas utilities before the Department of Public Utilities includes advocacy on issues relating to distribution rates, energy supply, renewable energy, grid modernization, system reliability, and service quality. Specifically, she has represented electric utilities in proceedings regulating the procurement of long-term renewable power, time varying rates, their continued modernization of the electric grid and the interconnection of distributed generation. Energy & Regulatory Law; Public Utilities Danielle (Rathbun) Winter is a partner at Keegan Werlin LLP specializing in energy and regulatory and public utility law. She represents a number of electric and gas utilities on issues concerning rates, planning, and energy procurement. Danielle Winter Phone: 617-951-1400 Email: dwinter@keeganwerlin.com ● Regulatory Law ● Energy Law ● Public Utilities Bar Admissions Massachusetts New York Ms. Winter’s representation of electric and gas utilities before the Department of Public Utilities includes advocacy on issues relating to distribution rates, energy supply, renewable energy, grid modernization, system reliability, and service quality. Specifically, Ms. Winter has represented electric utilities in proceedings regulating the procurement of long-term renewable power, time varying rates, their continued modernization of the electric grid and the interconnection of distributed generation. She has represented gas utilities in proceedings before the DPU regarding base distribution rates, cyber security and gas procurement and related issues. Prior to joining Keegan Werlin, Ms. Winter was an Assistant Attorney General in the Massachusetts Attorney General’s Office, Office of Ratepayer Advocacy. She was also an Assistant Counsel at the New York State Department of Public Service. Education Albany Law School, J.D. Binghamton University B.A. in Creative Writing, Comparative Literature and English Literature, minor in Spanish.

Ms. Pardee received her Juris Doctor and Master of Energy Regulation and Law from Vermont Law School. While attending law school, Ms. Pardee participated in the Energy Clinic and Moot Court, and was also a Research Associate with the Vermont Law School Institute for Energy and the Environment. Energy & Regulatory Law; Public Utilities Sarah Pardee is an associate attorney at Keegan Werlin LLP, specializing in energy, regulatory, and public utility law. Sarah Pardee Phone: 617-951-3773 Email: spardee@keeganwerlin.com ● Regulatory Law ● Energy Law ● Public Utilities Bar Admissions Connecticut Ms. Pardee received her Juris Doctor and Master of Energy Regulation and Law from Vermont Law School. While attending law school, Ms. Pardee participated in the Energy Clinic and Moot Court, and was also a Research Associate with the Vermont Law School Institute for Energy and the Environment. While at the Institute for Energy and the Environment, Ms. Pardee co-authored the article How Virtual Power Plants Can Advance Electrification and Mitigate Infrastructure Needs As We Race to Meet Our Climate Challenges, San Diego Journal of Climate & Energy Law (2022). Prior to joining the firm, Ms. Pardee worked at Eversource Energy in the Regulatory Projects division, concentrating on proceedings related to renewable energy, electric vehicles, energy affordability, reliability and resilience, and rate adjustments. Education B.S. 2018, University of Vermont J.D. 2023, Vermont Law School MERL 2024, Vermont Law School

Ms. Keuthen’s practice currently focuses on representing energy and utility clients before the Department of Public Utilities and the Energy Facilities Siting Board in cases involving electric transmission lines, substations and ancillary equipment, zoning exemptions and other regulatory matters. She advises electric and gas companies on issues concerning the siting, permitting and licensing of energy facilities and transmission arrangements. Energy, Contract & Administrative Law Catherine J. Keuthen is a partner in Keegan Werlin LLP’s energy and regulatory practice. She concentrates in the areas of utility regulation and energy law, counseling clients and representing them before the Department of Public Utilities and the Energy Facilities Siting Board. Catherine J. Keuthen Phone: 617-951-1400 Email: ckeuthen@keeganwerlin.com ● Administrative Law ● Energy Law ● Contract Law Bar Admissions Supreme Judicial Court of MA U.S. Supreme Court U.S. Court of Appeals First Circuit U.S. District Court District of MA Before joining the firm in 2011, Ms. Keuthen practiced utility law in the private sector and prior to that, she worked as an Assistant General Counsel for NSTAR and Boston Edison Company, successfully representing them on a wide range of matters, including general rate cases, electric industry restructuring, and energy procurement. Ms. Keuthen’s practice currently focuses on representing energy and utility clients before the Department of Public Utilities and the Energy Facilities Siting Board in cases involving electric transmission lines, substations and ancillary equipment, zoning exemptions and other regulatory matters. She advises electric and gas companies on issues concerning the siting, permitting and licensing of energy facilities and transmission arrangements. Education Boston College Law School, Boston, Massachusetts, J.D., cum laude Mount Holyoke College, B.A., cum laude

At Keegan Werlin, our attorneys bring a wealth of experience and deep legal knowledge to every case. Based in Lexington, MA, our team specializes in energy, environmental, public utility, and governmental law, representing clients in New England. We are committed to providing strategic, results-driven counsel, offering innovative solutions to navigate complex legal challenges in highly regulated industries. Our attorneys are dedicated to achieving successful outcomes tailored to client needs. Our Team Practical advice from a knowledgeable legal team. Cheryl M. Kimball Managing Partner & Chair of Energy & Regulatory Practice Read More David S. Rosenzweig Executive Partner & Chair of Energy Facilities Siting & Permitting Practice Read More Robert J. Keegan Chairman Emeritus Read More Molly K. Agostinelli Associate Read More Barry P. Fogel Partner Read More John K. Habib Partner Read More Robert J. Humm Partner Read More Catherine J. Keuthen Partner Read More Ashley S. Marton Associate Read More Jessica Ralston Partner Read More Danielle Winter Partner Read More Cheryl A. Blaine Partner Read More Steven Frias Associate Read More Erika J. Hafner Partner Read More Elizabeth Jameson Senior Counsel Read More Michael J. Koehler Partner Read More Sarah Pardee Associate Read More Tiffany N. Tisler Associate Read More Matthew Campbell Of Counsel Read More Jonathan A. Goldberg Senior Counsel Read More Michael B. Hershberg Associate Read More Joseph F. Kelley Associate Read More Peter E. Madsen Senior Associate Read More Kevin F. Penders Partner | Practice Manager Read More Brendan P. Vaughan Partner Read More Practice Areas Energy & Regulatory Law Energy Facilities Siting & Permitting Governmental & Legislative Relations Environmental, Municipal, & Land Use Learn More

Keegan Werlin LLP is a premier greater Boston-based law firm now headquartered in historic Lexington, Massachusetts. Specializing in energy, environmental, and public utility law, we serve clients across Boston and throughout New England with trusted legal counsel on complex regulatory matters. Practical advice from a knowledgeable and dedicated legal team. We take great pride in our ability to understand our client businesses, the environments in which they operate and their priorities for achieving success. We commit to client objectives at all stages of representation and know that, ultimately, there is no success without client success. If you would like to discuss a matter of interest, please contact us today. About Our Firm At Keegan Werlin LLP, we specialize in developing creative solutions to the complex challenges our clients encounter in their business environments. Keegan Werlin attorneys are industry leaders in energy and regulatory issues, project siting, licensing and permitting, environmental compliance and permitting, land use, government and legislative relations, municipal law and real estate. From start to finish, Keegan Werlin has unrivaled experience and knowledge of energy-related regulatory and policy matters and the project-development and permitting landscape. Experience & Expertise Keegan Werlin has a team of attorneys with unparalleled experience dealing with complex energy, real estate and regulatory issues. The firm combines its legal and regulatory expertise with a thorough understanding of the technical, strategic and financial challenges in emerging industries to provide successful and cost-effective representation of client interests. Learn More Practice Areas Energy & Regulatory Law Read more Governmental & Legislative Relations Read more Energy Facilities Siting & Permitting Read more Environmental, Municipal & Land Use Read more Partnerships

Ms. Blaine’s practice includes representation of energy and utility clients before the Department of Public Utilities and the Energy Facilities Siting Board in permitting energy facilities including natural gas generating and peaking facilities, renewable energy projects, natural gas pipelines, electric transmission lines, substations, and ancillary equipment. Energy, Environmental, Administrative, Municipal; Land Use & Zoning Cheryl A. Blaine is a partner at Keegan Werlin LLP and has been a member of the Firm’s Energy Facilities Siting & Permitting Practice and the Environmental, Municipal and Land Use Practice since 1997. Cheryl A. Blaine Phone: 617-951-1400 Email: cblaine@keeganwerlin.com ● Environmental Law ● Energy Law ● Administrative Law ● Land Use & Zoning ● Municipal Law Bar Admissions Massachusetts U.S. District Court District of MA Ms. Blaine’s practice includes representation of energy and utility clients before the Department of Public Utilities and the Energy Facilities Siting Board in permitting energy facilities including natural gas generating and peaking facilities, renewable energy projects, natural gas pipelines, electric transmission lines, substations, and ancillary equipment. She also has assisted individuals, corporations and municipalities in project development and has significant experience in land use and environmental permitting, real estate transactions involving contaminated properties, and litigation, adjudication, negotiation, enforcement, and defense involving environmental and land use issues. Ms. Blaine received her Juris Doctor, cum laude, from Suffolk University Law School in 1993 and completed her Bachelor of Science degree from Northeastern University in 1981. Before attending law school, Ms. Blaine was an analytical chemist and environmental consultant providing technical and quality-control/quality-assurance support to the United States Environmental Protection Agency in connection with New England Superfund Sites. Ms. Blaine is admitted to practice before the bars of Massachusetts and the United States District Court. She is a member of the Massachusetts Bar Association's Property Law and Public Law sections, the Real Estate Bar Association and the Women's Bar Association. Ms. Blaine has co-authored the following articles: “Alteration of Nonconforming Structures and Uses Under the Zoning Act: Is there a Difference Between Lawful and Unlawful?” co-author with Barry P. Fogel and H. Theodore Cohen, Massachusetts Bar Association Section Review, summer 2002. “Standing in Wetland Appeals: How Recent Developments Alter the Right to Challenge State and Local Decisions” co-author with Barry P. Fogel, Massachusetts Bar Association Section Review, fall 2005. Memberships and Associations Massachusetts Bar Association Massachusetts Real Estate Bar Association Massachusetts Women's Bar Association Education Suffolk University Law School, Boston, Massachusetts, J.D., cum laude, 1993 Northeastern University, Boston, Massachusetts, B.S. Biology, 1981

A major portion of Mr. Fogel's practice involves working with clients and their consultants to guide proposals for new or modified projects through all levels of environmental impact review and permitting including industrial and commercial facilities; energy and infrastructure projects; and other land uses and developments that require approvals for waste-site remediation, site review planning, waste discharges, air emissions, and resolution of liability disputes. Environmental, Land Use & Administrative Law; Litigation and Appeals Barry P. Fogel is a partner at Keegan Werlin LLP and became the initial member of its Environmental, Municipal and Land Use Practice. Barry P. Fogel Phone: 617-951-1400 Email: bfogel@keeganwerlin.com ● Environmental Law ● Land Use Law ● Administrative Law ● Litigation & Appeals Bar Admissions Massachusetts District of Columbia U.S. Court of Appeals First Circuit U.S. District Court District of MA Mr. Fogel's Clients include a wide variety of businesses, institutions, municipalities, individuals, and citizen groups engaged in land use development, real estate transactions, and permit and enforcement proceedings involving compliance with federal, state, and local environmental and land use regulations. A major portion of Mr. Fogel's practice involves working with clients and their consultants to guide proposals for new or modified projects through all levels of environmental impact review and permitting including industrial and commercial facilities; energy and infrastructure projects; and other land uses and developments that require approvals for waste-site remediation, site review planning, waste discharges, air emissions, and resolution of liability disputes. Mr. Fogel has extensive experience with projects that require permits and licenses for activities in and near inland and coastal wetlands and other protected resource areas. He also regularly manages cases involving administrative appeals, resolution of enforcement notices, and civil disputes involving litigation and mediation. Prior to joining the firm in 1991, Mr. Fogel worked for six years as a Deputy General Counsel and Regional Director with the Massachusetts Department of Environmental Protection. Before that, he served as Counsel to the District of Columbia City Council's Committee on Transportation and Environmental Affairs, and as counsel to the Chairman of the Washington Metropolitan Area Transit Authority. Representative Cases Verrill Farms, LLC v. Farm Family Casualty Insurance Company, 86 Mass.App.Ct. 577 (2014) Ten Persons of the Commonwealth et al. v. Fellsway Development LLC et als., 460 Mass. 366 (2011) Brockton Power Company LLC vs. City of Brockton & others, Appeals Court Docket No. 2012-P-214, Memorandum and Order Pursuant to Rule 1:28; by the Court (Kantrowitz, Sikora & Sullivan, JJ.), November 21, 2012 Education American University, Washington College of Law, Washington, D.C., J.D., 1982 Wesleyan University, Middletown, Connecticut, B.A., Geology and Earth Sciences, 1976 Conservation Commission of Brockton vs. Department of Environmental Protection & another, Appeals Court Docket No. 2011-P-766 (April 19, 2012) Brockton Power Company, LLC v. Planning Bd. of City of Brockton, 2011 WL 3655178 (Mass.Land Ct.), August 19, 2011

Cheryl M. Kimball is a partner at Keegan Werlin LLP, specializing in energy and regulatory and public utility law. She represents a number of electric and gas utilities, as well as major project developers. Energy Law, Public Utilities, Regulatory, & Administrative Law; Administrative Law Appeals Cheryl M. Kimball is a partner at Keegan Werlin LLP, specializing in energy and regulatory and public utility law. She represents a number of electric and gas utilities, as well as major project developers. Cheryl M. Kimball Phone: 617-951-1400 Email: ckimball@keeganwerlin.com ● Public Utilities ● Energy Law ● Regulatory/Administrative Law ● Administrative Law Appeals Bar Admissions Connecticut Massachusetts Rhode Island Ms. Kimball’s representation of electric and gas utilities before public utility commissions in Massachusetts, Connecticut, Rhode Island, and New Hampshire includes advocacy and strategic guidance on issues relating to a broad range of rate-setting matters; utility finance; cost-recovery proposals for system infrastructure upgrades and replacements; pension costs; energy procurement; utility-owned solar and energy storage; emergency response plans; storm reviews and recovery proposals; and electric and pipeline safety compliance. She has successfully represented several electric and gas utilities in distribution rate proceedings, merger and acquisition proceedings and on administrative appeals before the Massachusetts Supreme Judicial Court. Ms. Kimball’s energy facility siting experience includes experience working for the Massachusetts Energy Facilities Siting Board on the siting of gas-fired generation facilities, and work on the private side representing developers in their efforts to obtain state permits and local zoning exemptions relating to the construction of energy infrastructure. Prior to joining the firm in 1997, Ms. Kimball served in the position of Counsel for the Massachusetts Department of Public Utilities, and previous to that as an Associate for Hiscock & Barclay in Syracuse, NY. Education B.A. 1992, Fitchburg State University, summa cum laude J.D. 1995, Syracuse University College of Law, magna cum laude M.P.A 1995, Maxwell School of Citizenship & Public Affairs at Syracuse University, magna cum laude