Dr. Holmes Hummel is an interdisciplinary solutionary who has worked at the intersection of energy policy, technology, and finance for two decades in academia, private sector, public policy, and civil society organizations. Most recently, Holmes founded Clean Energy Works to accelerate investments in the clean energy economy by bridging multiple clean energy divides with inclusive financing.

Previously, Dr. Hummel served as the Senior Policy Advisor in the Department of Energy’s Office of Policy & International Affairs during the Recovery Act era of 2009-2013. Holmes brought to that experience insight gained as a Congressional Science Fellow selected by American Association for the Advancement of Science (AAAS), serving in the office of Jay Inslee, currently Governor of Washington, who served in Congress at that time. Dr. Hummel has also served on the Board of Cleantech Open, the world's largest cleantech accelerator at that time.

In addition to prior work with energy innovators in the Silicon Valley, Dr. Hummel earned a doctorate degree from Stanford University for interdisciplinary research on energy technology scenarios that achieve 100% clean energy. While in the pursuit of solutions that accelerate just energy transitions, Dr. Hummel has taught Climate Policy Design at the Energy Resources Group at University of California in Berkeley and co-founded four new courses at Stanford in 2020-2021, including Racial Equity in Energy and Quest for an Inclusive Clean Energy Economy.

Current Role at Stanford

Energy Equity & Just Transitions, Managing Director
Precourt Institute for Energy

Collaborator in Collaborative Learning about Equity and Rapid Decarbonization (CLEAR Decarbonization), one of the first projects selected for an award from the Stanford Sustainability Accelerator

Honors & Awards

  • Endorsement of clean transit finance concept, Global Innovation Lab for Climate Finance (2018)
  • International Finalist, Climate Strategy Accelerator (2017)
  • Finance for Resilience (FiRe) Award, Bloomberg New Energy Finance (2015)

Education & Certifications

  • Ph.D., Stanford University, Emmett Interdisciplinary Program in Environment and Resources (2006)
  • M.S., Stanford University, Engineering (1999)
  • B.S., Stanford University, Energy Engineering (Individually Designed Major) (1999)


  • Towards an Accessible Financing Solution, Clean Energy Works, for Building Decarbonization Coalition (1/1/2020)

    Widespread participation in clean, electric home upgrades is critical to meaningfully reduce harmful building emissions, yet clean energy investments remain out of reach for many energy customers who have neither the money to afford the upgrades nor the credit necessary to borrow what they cost.

    “Towards an Accessible Financing Solution: A Policy Roadmap with Program Implementation Considerations for Tariffed On-Bill Programs in California” is a report prepared for the Building Decarbonization Coalition that outlines how policymakers can:
    - Open a more accessible and equitable path to clean energy solutions.
    - Remove barriers to accessing clean energy solutions.
    - Address embedded barriers to clean energy solutions.


    Sacramento, CA

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  • LIFT Solar Everywhere, Clean Energy Works, with Groundswell (10/1/2019)

    The U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) is sponsoring research on applying a proven system for tariffed on-bill investment for energy efficiency to on-site solar. Solar PAYS is a program design based on the Pay As You Save (PAYS) system that can capitalize an on-site solar installation at a site, regardless of the income, credit score, or renter status of the occupant at that location.


    Washington, D.C.

2022-23 Courses

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