• Biography

    Diana Liebmann’s legal advocacy and regulatory experience have helped clients to restructure the electric power markets in Texas, and to create the rules for the current ERCOT market - the most vibrant and competitive market in the country. Diana understands the risks inherent in certain transactions under constantly changing market rules and dynamics. She has represented clients in analyzing and structuring power supply arrangements for LNG facilities including with respect to on-site generation, and also developing the current postage stamp transmission pricing mechanism in the Competitive Renewable Energy Zone proceedings to obtain access to markets for their generation in a $6 billion transmission build-out of the ERCOT market, in interconnecting on-site generation both with ERCOT and transmission and distribution utilities.

    Diana’s broad transactional experience and in-depth focus on the details of wholesale and retail power regulation and market structure give her the ability to effectively guide clients with respect to compliance, and in investments and deployment of capital in electricity markets.

    Diana leads the firm’s Power and Renewables practice, is a partner in the Capital Markets and Securities practice, manages the San Antonio office as its Administrative Partner and is a leader in her community.

    Diana is valued as a leading energy lawyer by Chambers USA, Chambers & Partners, and is described as a “utilities guru” with a “great understanding of the Public Utility Commission.” She has become a go-to lawyer for regulatory matters relating to the Public Utility Commission of Texas, the Electric Reliability Council of Texas, the Southwest Power Pool, the Federal Energy Regulatory Commission and in various other state commission, regional entity and North American Electric Reliability Corporation proceedings.

  • Education and Clerkships

    • J.D. , University of Texas at Austin, School of Law , 1996
    • B.A. , Political Science, Minor in Chemistry , Southwestern University , 1993
  • Admissions

    • Texas
    • District of Columbia
  • Court Admissions

    • U.S. District Court for the Western District of Texas
    • U.S. District Court for the Southern District of Texas
    • U.S. Court of Appeals for the Fifth Circuit