Experienced, Proven, Connected

TEP’s partnership oriented team supports industry leading management teams and projects by leveraging decades of experience across the energy transition, and a highly connected network. 

Pat Eilers


Before founding Transition Equity Partners, LLC, Pat was a Managing Director at BlackRock Infrastructure. There he served on the Investment Committees for the Global Renewable Power and Global Energy & Power Infrastructure Funds. He also chaired BlackRock’s Energy & Power Private Equity Fund. Prior to BlackRock, Pat led Madison Dearborn Partners into the sustainable energy sector, overseeing the firm’s energy, power, and chemicals practices for a decade.

Pat currently serves on the Board of Trinity Gas Storage and Bedrock Energy, and previously served on the Boards of NextDecade, First Wind, Magellan and US Powergen.

In addition to Bachelor of Science degrees in both Biology and Mechanical Engineering from the University of Notre Dame, Pat also earned a Masters of Management from the Kellogg School of Business at Northwestern University. As an athlete, Pat played on Notre Dame’s 1988 National Championship team before spending six seasons in the NFL with Minnesota, Washington, and Chicago. Pat lives in Chicago with his wife and four children.

Michael Allison


Prior to joining Transition Equity Partners, Michael was a Senior Managing Director at Stonepeak. There he co-led the $2.8bn Global Renewable Fund as well as sitting on the investment committee for the firm’s flagship infrastructure funds. Before joining Stonepeak, Michael headed the renewable energy investing team within Macquarie Capital based in New York.

Michael currently serves on the Board of Trinity Gas Storage, and previously served on the Boards of Madison Energy Infrastructure, Stonepeak Northeast Power, and Lansing Ethanol Services.

Michael earned a Bachelor of Business from the University of Technology in Sydney, Australia. Michael moved to the US from Australia in 2000 and lives in Rye, New York with his wife and two children.

Ryan Voerg


Ryan has served as Managing Partner of Core Bridge Partners since he founded the Firm in 2015. At Core Bridge Partners, Ryan assisted with launch of 10 investment advisory firms, managing ~$2bn across a network of 700 limited partners. Before joining Core Bridge Partners, Ryan held senior management roles with Deccan Value Investors, Tower Research Group and Citigroup.

Ryan earned a Bachelor of Business Administration from the University of Notre Dame, majoring in Finance. Ryan and his wife, Tracy, have one child and live in New Jersey.

John Sexton


John is a Vice President at Transition Equity Partners, focused on executing buyout and growth equity investments across TEP’s core sectors. Prior to joining TEP in 2021, John was an Associate within Marathon Capital’s Investment Banking Group, facilitating M&A transactions and tax equity financings in the renewables, conventional power, carbon capture and energy services/technology sectors.

John earned his Bachelor of Business Administration in Finance, while minoring in Sustainability at the University of Notre Dame.

James Onwualu


James is a Senior Associate at Transition Equity Partners, focused on executing buyout and growth equity investments across TEP’s core sectors. Prior to joining TEP in 2021, James played in the National Football League as an outside linebacker. While in the NFL, James Co-Founded Afia Capital, a fund targeting early-growth stage companies that benefited from the LP consortiums of professional athletes that Afia arranged.

James earned his Bachelor of Business Administration in Finance at the University of Notre Dame.

Ceci Deng


Ceci is an Associate at Transition Equity Partners, focused on executing buyout and growth equity investments across TEP’s core sectors. Prior to joining TEP in 2023, Ceci was an Investment Banking Analyst at Nomura Greentech, working on M&A transactions and equity raises across low-carbon infrastructure, and energy industrial technology.

Ceci earned her Bachelors of Commerce in Finance at the Queen’s University.

Paul Dabbar


Mr. Dabbar is co-founder and CEO of Bohr Quantum Technology, a spin-out of Caltech focused on developing networking technologies for the emerging quantum internet, Senior Research Scholar at Columbia University and Board member of Dominion Energy. Prior to that, the U.S. Senate unanimously confirmed him as the Dept of Energy’s fourth Under Secretary for Science. He was the Dept’s leader on fundamental energy research & technologies, science, and commercialization of technologies. He managed over 60,000 people with a budget of $15 billion p.a. at over 100 sites, managing the majority of the U.S. National Labs. Prior to confirmation as Under Secretary, he worked in operations, finance, and strategy roles in the energy and national defense sectors. As Managing Director at J.P. Morgan, he had over $400 billion in transaction experience across all energy sectors. In addition, he had a senior leadership role for the company’s commodity trading business, including energy. Before J.P. Morgan, he was a nuclear submarine officer, and worked at the Johns Hopkins Univ. Applied Physics Lab. He is a graduate of the US Naval Academy and Columbia University.

Anthony Earley


Mr. Earley is currently a member of Southern Company’s Board of Directors, and previously served as Chairman, President and Chief Executive Officer of PG&E Corporation, a public utility holding company providing natural gas and electric services, from 2011 until February 2017, when he became Executive Chairman. He served as Executive Chairman until his retirement from PG&E in December 2017.  Before joining PG&E, Mr. Earley served in several executive leadership roles during his 17 years at DTE Energy, including Executive Chairman, Chairman and Chief Executive Officer. Prior to joining DTE Energy in March 1994, he served in various capacities at Long Island Lighting Company, including President and Chief Operating Officer. He was a partner at the Hunton & Williams LLP law firm as a member of the energy and environmental team. He also served as an officer in the U.S. Navy nuclear submarine program where he was qualified as a chief engineer. He previously served on the Board of Directors of Ford Motor Company, DTE Energy, PG&E Corporation, Comerica Incorporated, Masco Corporation and Long Island Lighting Company.

Michael O’Sullivan


Mr. O’Sullivan is a recognized leader in the energy industry with significant executive management experience in finance, development, operations, regulatory and ESG. He is currently a Board Member for New Jersey Resources. For nearly two decades, he served as senior vice president of development at NextEra, where he led the company’s renewable development and M&A/divestiture efforts, including the deployment of approximately $40 billion into more than 250 solar, wind, storage, nuclear and fossil fuel projects across 36 states and 4 provinces in Canada. He also served as a member of NextEra’s executive team and operating committee from 2001 until his retirement in 2020. Prior to joining NextEra, Mr. O’Sullivan served as vice president of the Midwest division of AES; division vice president of NRG North America; vice president of business development at Indeck Energy Services; development manager at Homart Development, a subsidiary of Sears; and began his career as a staff engineer at Commonwealth Edison in 1982.