Department profile
Sheppard, Mullin, Richter & Hampton LLP

Energy: State Regulatory & Litigation

USA Guide 2026 : California


Sheppard, Mullin, Richter & Hampton LLP

Rankings

About

Provided by Sheppard, Mullin, Richter & Hampton LLP

Sheppard attorneys have handled energy regulatory and project development matters in California for more than 35 years. The team is known for its work before the California Public Utilities Commission (CPUC), California Energy Commission (CEC), and California Independent System Operator (CAISO).This experience covers the regulation of electricity, natural gas, and water service, including the representation of electric public utilities and transmission-only utilities. Through its direct involvement in these complex and highly regulated industries, the team advises clients on the latest developments and helps them prepare for changes in an evolving regulatory landscape.

The team’s CEC experience includes obtaining certification for thermal power plants and approval for project modifications and transfers of ownership and assisting with RPS certification and verification requirements for renewable projects (including those with co-located or integrated storage). The team also represents clients in the CAISO interconnection process and stakeholder proceedings regarding changes to the CAISO’s tariff and business practice manuals.

We integrate our extensive CPUC, CEC, and CAISO expertise into representing clients in all types of power purchase and energy storage agreements. Our energy lawyers possess a unique combination of regulatory, technical, legal, and commercial knowledge that adds significant value in these transactions.

Chambers Review

Provided by Chambers

Energy: State Regulatory & Litigation - California

Band 1

Band 1


What the Team is Known For
Sheppard, Mullin, Richter & Hampton LLP has a strong California-based team with longstanding experience before the CPUC, CEC and CAISO, providing representation to a range of market participants. The firm's expertise includes permitting, rate cases and regulatory compliance, with additional capabilities in PPAs.

Work Highlights

Provided by Chambers

  • Sheppard Mullin represent Golden State Water Company in multiple proceedings before the California Public Utilities Commission. The proceedings will establish the client’s rates and ability to expand its service footprint.

Strengths

Provided by Chambers

  • Sheppard, Mullin, Richter & Hampton perform well in answering questions very promptly, meeting our timelines, and making sure we are managing expectations. They're thorough, supportive in our needs and supportive on calls with counterparties.

    Energy: State Regulatory & Litigation respondentUSA

Notable Practitioners

Provided by Chambers

  • Band 1Joseph Karp
    Band 1Joseph Karp

    Joseph Karp

    Joseph Karp is a CPUC expert and has a long history of representing clients before the agency in ratemaking and transactional mandates. He notably assists power generation and retail electricity providers, alongside public utilities.

  • Band 2Lisa A Cottle
    Band 2Lisa A Cottle

    Lisa A Cottle

    Lisa Cottle is recognized for her expertise in the projects space, regularly working with clients on PPA negotiations and permitting proceedings before the CPUC.
  • Band 3Christine A. Kolosov
    Band 3Christine A. Kolosov

    Christine A. Kolosov

    Christine Kolosov is noted for her practice focused on regulatory matters before the CPUC. She also handles energy project development, sales and acquisitions, and financing.

    • Christine Kolosov is a trusted and dedicated adviser.

      Energy: State Regulatory & Litigation respondentUSA
  • Band 3Thomas Solomon
    Band 3Thomas Solomon

    Thomas Solomon

    Thomas Solomon is highly knowledgeable of the issues facing electric utilities, drawing on previous in-house experience. He represents generation owners, developers and industry groups in a host of regulatory and transactional matters.
    • Thomas Solomon was always very in tune with our risks and how to mitigate those, so we got a great outcome in managing those risks and making sure the structures worked for the project.

      Energy: State Regulatory & Litigation respondentUSA

Ranked Individuals at Sheppard, Mullin, Richter & Hampton LLP (4)

California

Members

Provided by Sheppard, Mullin, Richter & Hampton LLP

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