Emissions and Energy Impacts of the Inflation Reduction Act

An article published in the journal Science leverages results from nine independent, state-of-the-art models to examine potential implications of key Inflation Reduction Act provisions.

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June 29, 2023


John Bistline, Geoffrey Blanford, Maxwell Brown, Dallas Burtraw, Maya Domeshek, Jamil Farbes, Allen Fawcett, Anne Hamilton, Jesse Jenkins, Ryan Jones, Ben King, Hannah Kolus, John Larsen, Amanda Levin, Megan Mahajan, Cara Marcy, Erin Mayfield, James McFarland, Haewon McJeon, Robbie Orvis, Neha Patankar, Kevin Rennert, Christopher Roney, Nicholas Roy, Greg Schivley, Daniel Steinberg, Nadejda Victor, Shelley Wenzel, John Weyant, Ryan Wiser, Mei Yuan, and Alicia Zhao


Journal Article in Science

Reading time

1 minute


If goals set under the Paris Agreement are met, the world may hold warming well below 2°C (1); however, parties are not on track to deliver these commitments (2), increasing focus on policy implementation to close the gap between ambition and action. Recently, the US government passed its most prominent piece of climate legislation to date—the Inflation Reduction Act of 2022 (IRA)—designed to invest in a wide range of programs that, among other provisions, incentivize clean energy and carbon management, encourage electrification and efficiency measures, reduce methane emissions, promote domestic supply chains, and address environmental justice concerns (3). IRA’s scope and complexity make modeling important to understand impacts on emissions and energy systems. We leverage results from nine independent, state-of-the-art models to examine potential implications of key IRA provisions, showing economy-wide emissions reductions between 43 and 48% below 2005 levels by 2035.


John Bistline

Electric Power Research Institute

Geoffrey Blanford

Electric Power Research Institute

Maxwell Brown

National Renewable Energy Laboratory

Jamil Farbes

Evolved Energy Research

Allen Fawcett

US Environmental Protection Agency

Anne Hamilton

National Renewable Energy Laboratory

Jesse Jenkins

Princeton University

Ryan Jones

Evolved Energy Research

Ben King

Rhodium Group

Hannah Kolus

Rhodium Group

John Larsen

Rhodium Group

Amanda Levin

Natural Resources Defense Council

Megan Mahajan

Energy Innovation

Cara Marcy

US Environmental Protection Agency

Erin Mayfield

Dartmouth College

James McFarland

US Environmental Protection Agency

Haewon McJeon

Center for Global Sustainability, University of Maryland

Robbie Orvis

Energy Innovation

Neha Patankar

Binghamton University

Christopher Roney

Electric Power Research Institute

Greg Schivley

Carbon Impact Consulting

Daniel Steinberg

National Renewable Energy Laboratory

Nadejda Victor

National Energy Technology Laboratory

Shelley Wenzel

Energy Innovation

John Weyant

Stanford University

Ryan Wiser

Lawrence Berkeley National Laboratory

Mei Yuan

MIT Joint Program on the Science and Policy of Global Change

Alicia Zhao

Center for Global Sustainability, University of Maryland

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