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Lowell Ungar

Director of Federal Policy

Lowell Ungar leads the federal policy program at ACEEE. He develops legislative proposals, builds stakeholder and policymaker support for them, promotes administrative actions under existing authorities, and analyzes existing and proposed policies and programs. He has worked on policies in all economic sectors and often leads cross-cutting research on potential policy impacts. He joined ACEEE in 2013.

Prior to joining ACEEE, Lowell was director of policy at the Alliance to Save Energy. He played a key role in enacting legislation on building energy codes, appliance efficiency standards, tax incentives, funding, federal energy management, and other areas. He also co-wrote reports mostly on buildings and utility policy issues. Before working at the Alliance he was a legislative aide in both the U.S. Senate and the House of Representatives.

Lowell earned a PhD in physical chemistry from the University of Chicago and a BS in chemistry with distinction and with honors in humanities from Stanford University.

Expertise:

  • Federal energy policies
  • Policy development, advocacy, and analysis
  • Buildings and utilities policies
  • Tax incentives and government funding

Authored by Lowell Ungar

Efficiency Saves: Cutting Energy Waste Can Save $31,000 per Household
An Indian couple sitting on a couch looking at energy bills.
  • Research Report
  • Energy Efficiency Policy
  • Homes and Buildings
  • Efficiency Saves: Cutting Energy Waste Can Save $31,000 per Household

    The United States faces interlocking energy challenges: rising home energy bills and gasoline prices; new demand for electricity from data centers and other loads; high greenhouse gas emissions from burning fossil fuels. 

    Now, a new era of energy efficiency progress in our buildings, transportation, and industry is needed to meet this moment. This wide-ranging study finds a massive opportunity.

    Jul 27, 2026

    NAHB’s Fictitious Building Code Cost Claim
  • Fact Sheet
  • NAHB’s Fictitious Building Code Cost Claim

    The National Association of Home Builders has repeatedly made incorrect claims about the added costs of building a new home to meet the 2021 International Energy Conservation Code. This fact sheet …

    Sep 8, 2025

    Building Energy Codes Make Homes More Affordable
  • Fact Sheet
  • Homes and Buildings
  • Building Energy Codes Make Homes More Affordable

    Building energy codes set a minimum level of energy efficiency for new homes and commercial buildings. They are usually set by states or cities based on the model International Energy Conservation …

    Sep 8, 2025

    Support the Work That Makes Energy Go Further

    ACEEE’s independent research and advocacy depend on the support of foundations, businesses, and individuals committed to a cleaner, more affordable energy future for all Americans.