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W. Duncan Crosby III

Member, Louisville

Duncan has been with SKO since 2003. He is a member of the Utility & Energy and Trusts & Estates practices. Duncan has significant experience in a range of utility regulatory matters including acquisitions, multiple base rate cases and proceedings regarding environmental surcharges, renewable energy and demand-side management. Duncan’s substantial practice in Trusts and Estates includes numerous estate planning and administration clients with assets ranging from the modest to millions. His clients and colleagues alike find Duncan organized, efficient, affable and easy-going.

Harvard University
2003, J.D.
Yale University
2000, B.A., cum laude
U.S. District Court, Western District of Kentucky


  • Eagle Scout
  • Ignite Louisville graduate, 2007
  • FOCUS Louisville class agent and participant, 2003


  • American Bar Association, member
  • Kentucky Bar Association, member
  • Louisville Bar Association, member
  • Energy Bar Association Southern Chapter, member; president, 2012-2013
  • Faith Community Church, deacon and Men’s Ministry Leader
  • Southern Baptist Theological Seminary Foundation, associate
  • Previous Service:
  • Junior Achievement of Kentuckiana, executive board member, 2014-2016
  • Macfarlane for Congress, treasurer, 2013-2014
  • Jefferson County Republican Party, treasurer, 2007-2008
  • Erwin Roberts for Congress, treasurer, 2007-2008
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Meet Duncan

Legal Practice

Utility & Energy: In this highly regulated industry, my focus is helping clients achieve their day-to-day operations goals and long-term strategic objectives. I have extensive experience in representing clients before local, state and federal regulatory bodies to obtain certificates of public convenience and necessity, rate adjustments and environmental surcharges. As the energy business has evolved, so has my knowledge base in the areas of demand-side management, energy efficiency, smart grid and renewable energy. I also have helped clients complete acquisitions and successful withdrawals from regional transmission compacts. Highlights include the following:

  • Kentucky Public Service Commission approval for new electric and gas base rates for LG&E-KU to recover an additional $115 million in annual revenue, 2017
  • Kentucky Public Service Commission approval of environmental surcharge recovery of nearly $1 billion in new environmental capital investments for LG&E-KU, 2016
  • Kentucky Public Service Commission approval of LG&E-KU’s $179 million demand-side management and energy efficiency program plan, 2014
  • Lead author of joint report to the Kentucky Public Service Commission on behalf electric utilities and natural gas local distribution companies subject to the Commission’s jurisdiction concerning smart-grid matters, 2013-2014
  • Lead counsel for AmeriGas in sale of small propane utility, 2013-2014
  • Lead counsel for City of West Liberty, Ky. in its acquisition of Elam Utility Company, Inc., preventing the interruption of natural gas service to over 400 customers, 2010
  • Assisted LG&E-KU in terminating its membership in the Midwest Independent Transmission System Operator, Inc., the first exit of transmission-owning utilities from a regional transmission organization, 2006

Trusts & Estates: My focus is helping clients plan ahead so they are able to provide for themselves and their families, no matter what the future holds. From developing a basic will, establishing a trust or explaining the difference between a durable power of attorney and a healthcare power of attorney, my goal is to help clients create an estate plan for tomorrow that provides them peace of mind today.

Looking Ahead

The utility industry is increasingly in flux as renewable generation, smart grid, distributed energy resources, energy efficiency, low-cost natural gas, and environmental regulations all make their mark on a formerly placid and predictable field.