Clients rely on WilmerHale for regulatory guidance as international focus shifts to clean, renewable and efficient energy technologies.

WilmerHale has been a leader in the renewables industry since its emergence, and our renowned team of energy lawyers is adept at helping clients secure permits, grants and loans for onshore and offshore wind projects, solar energy, renewable energy transmission, and other renewable energy projects in the United States and abroad. We are skilled at navigating regulatory, transactional, financing and litigation issues that arise throughout the lifecycle of a project, and we certify compliance with major federal industry regulations, including the National Environmental Policy Act, Clean Water Act, Clean Air Act, Federal Power Act and Natural Gas Act. Our lawyers continuously monitor new and developing international, federal, state and local regulations that may have short- or long-term effects on the renewables landscape.


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Spielman, Andy

Andrew L. Spielman

Co-Partner-in-Charge, Denver Office

Chair, Energy, Environment and Natural Resources Practice

+1 720 274 3161 (t)

Salazar, Ken

Ken Salazar


+1 720 274 3131 (t)

Gold, H. David

H. David Gold

Special Counsel

+1 617 526 6425 (t)

Treiser, Raya

Raya B. Treiser


+1 202 663 6002 (t)


Kayla S. Byers

Senior Associate

+1 720 274 3151 (t)


  • Advising a major utility on a variety of complex environmental regulatory issues, including the development of a company-wide strategy for compliance with avian protection laws; assessing regulatory and environmental risk; developing a federal agency strategy in connection with the possible acquisition and permitting of a wind energy generation facility that would enable the utility to meet its renewable energy target; and interfacing with federal regulators.
  • Assisting a wholesale electricity supplier with the development of a 250-megawatt onshore wind energy project, including advising on numerous permitting issues essential to obtaining the required project financing.
  • Counseling a major technology company on the development of a prototype energy kite and new type of wind turbine that can access stronger and steadier winds at higher altitudes to generate more energy with less materials, and providing strategic counseling on regulatory approvals required for pilot testing the technology in Hawai'i.
  • Assisting a solar electricity company in negotiating the sale of 24 megawatts of operating solar generation projects to an acquisition fund, and negotiating a deal sourcing agreement under which the company would develop and potentially sell future projects to the fund over the next several years.
  • Advising a solar energy company and several affiliates in a variety of financing transactions related to the purchase of solar renewable energy certificates (SRECs) from solar generation projects, and establishing SREC purchase funds.
  • Representing an energy facility and micro-grid in the potential development of co-generation facilities, including fuel supply and plant distribution systems and related utility matters.
  • Assisting a group of ethanol producers and supporters with comments on the EPA's renewable fuel percentage standards for 2014, 2015 and 2016 under Section 211 of the Clean Air Act. Relying on statutory waiver authorities, the EPA proposed adjusting the applicable volumes of advanced biofuel and total renewable fuel for all three years.
  • Representing solar project developers, host customers and project financiers on regulatory, project development and project finance issues related to the proposed development of more than 100 megawatts of solar generation projects in New England.
  • Assisting national commercial retailers, financial companies and municipalities with the purchase of electricity and natural gas from competitive suppliers on single facility and regional bases, and in the direct purchase of energy supplies from regional wholesale electric markets.
  • Advising a large offshore wind generation developer on commercial, tax, real estate and regulatory matters stemming from the proposed development of a 400–800 megawatt offshore wind generation project in the United States, including drafting a joint venture agreement with an energy company, clarifying the US Bureau of Ocean Energy Management's regulations related to phased development, and responding to a solicitation for a power purchase agreement by electric distribution companies.
  • Advising an energy developer regarding purchase and sale agreements, including a financing and potential equity sale to an investor-owned utility; issues associated with landowner agreements; the permitting of a 600-megawatt wind energy project in the mountain west region of the United States; state and local permitting requirements for large-scale wind energy facilities; and public hearings and meetings with public officials.