Contact Information
Main: (949) 525-6016

1580 Lincoln St.
Denver, CO 80203

• State Bar of Colorado
• US District Court - District of Colorado


Mr. Dunbar advocates on behalf of renewable energy and clean technology clients, including providers of both rooftop and utility-scale solar, community solar gardens, and electric vehicle (EV) infrastructure, in litigation before state public utilities commissions (PUCs) and the Federal Energy Regulatory Commission (FERC). Mr. Dunbar has extensive hearing room experience, particularly with cross-examining subject matter experts on both technical issues and policy matters. In addition to his litigation practice, Mr. Dunbar advises clients on draft legislation and in administrative rulemaking proceedings.

Prior to joining Keyes & Fox, Mr. Dunbar worked at the Colorado Attorney General’s Office and represented the Trial Staff of the Colorado PUC, where he focused on rate cases, renewable energy, energy efficiency, and CPCN proceedings. Mr. Dunbar also litigated cases involving transportation providers before the PUC, including taxis, limousines, household goods carriers, and contract carriers. In addition to his law degree, Mr. Dunbar holds a Masters of Science degree from the Environmental Studies Department at the University of Colorado. As a part of this interdisciplinary degree focused on energy policy, Mr. Dunbar studied electrical engineering, economics, climate science, policymaking, and environmental philosophy.

Mr. Dunbar’s litigation skills and deep subject-matter understanding of the electric utility industry allow him to advise clients at all stages of proceedings, from developing litigation positions and strategies to drafting legal briefs, as well as advise clients on general policy considerations.

Representative Work

  • Brought a Petition for Enforcement of the Public Utility Regulatory Policies Act (PURPA) before the FERC (no action within statutory deadline due to lack of quorum) and a Petition for Declaratory Relief at the Federal District Court for the District of Colorado.
  • Advised on development of transportation electrification rules promulgated by Oregon PUC.
  • Played a key role in the Colorado PUC’s denial of a utility application to create a subscription service that raised serious anticompetitive and cross-subsidization concerns.
  • Advised Trial Staff throughout Colorado’s net metering investigatory proceeding.
  • Shepherded a settlement agreement that allowed a southern Colorado utility to build and acquire a large wind facility with built-in ratepayer protections.
  • Represented Trial Staff in bringing a formal complaint against a utility related to an unauthorized monthly charge for residential solar customers.


  • University of Colorado Law School, JD 2011
    • Order of the Coif (top 10% of the class)
    • Sandgrund Environmental Law Fellowship
  • University of Colorado, Environmental Studies Department, MS (energy policy focus) 2011
  • St. John’s College, Santa Fe, BA in Liberal Arts 2005, Great Books program