Energy & Infrastructure

Experienced energy and infrastructure attorneys who understand your industry

Capabilities at a glance

  • Strong and lasting relationships built on trust and good communication. We bring a unified team mentality to large projects, because we know that’s what works.
  • In-depth industry knowledge based on decades of experience working both with a diverse range of clients and with regulators at state and federal level.
  • We pride ourselves on our multidisciplinary approach, with team members working together seamlessly across industry sectors and across areas of law.
  • Pragmatic, business-focused legal advice carefully tailored to support your business goals.

Shared purpose with clients on energy and infrastructure law

The same spirit that drives energy and infrastructure projects helps the Quarles Energy & Infrastructure Practice Group provide you with excellent legal services: strong relationships, trust and good communication. We pride ourselves on working well together as a group and as a firm, working with a shared purpose with our clients and always offering efficient and effective legal advice and work product. Everything we do is focused on giving you streamlined, holistic legal services tailored to your needs. And as a full-service law firm, we will draw on the knowledge of our colleagues in other departments as needed, because we understand energy and infrastructure projects require a wide range of skills and experience.

Agility and experience across a wide range of energy and infrastructure projects

Our energy and infrastructure lawyers have a range and depth of industry knowledge few can match. We advise publicly and privately held corporations, national and international energy developers and suppliers, lenders, financial institutions, governments and governmental agencies, and nonprofit energy market participants, including Native American entities, on strategic infrastructure projects across a wide range of industry sectors, including power generation, transmission and distribution, natural gas distribution, renewable energy, deregulated and restructured markets, transportation, and water and wastewater. We provide advice that recognizes the complexity of today's energy and infrastructure industries, where issues involve critical investments, major public policy decisions and politically sensitive decision-making.


  • Energy regulation
  • Public-private partnership (P3) transactions and approvals
  • Power plant and other infrastructure transactions and due diligence
  • Environmental permitting, remediation and cleanups
  • Infrastructure development on Native American lands
  • Water rights and transactions


  • Quarles partnered with Midwestern utilities to obtain approvals for the one of the first utility-scale solar energy projects in Wisconsin.
  • We helped achieve completion of the first P3 project — construction and operation of a privately-owned highway toll bridge — in Illinois.
  • Provided due diligence to the lender underwriting the construction of a 200-megawatt, 133-turbine wind farm in Wisconsin.
  • Represented Osaka Gas USA in its joint venture with Summit Ridge Energy to construct, own and operate more than 50 megawatts of solar projects throughout Illinois.
  • Advised the owner of a utility-scale solar project on metering issues with one investor-owned public utility and two electric cooperatives.
  • Advised Illinois wind farm developers on interconnection agreements, power purchase agreements and agricultural impact mitigation agreements.
  • Performed due diligence for the primary lender for a wind farm project in Arizona.
  • Represented a wind farm developer in Illinois with documents for initial rounds of funding.

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