Frontier Associates, LLC was established in 1999 as a spin-off from Planergy Inc., then one of the largest energy services firms in the US. In 2001, Frontier was the first company to offer comprehensive program management and tracking databases with complete Internet access for utility efficiency program participants and administrators. For the past 17 years, Frontier has provided consulting assistance, implementation services, and engineering support to energy consumers, electric and gas utilities, water utilities, and government agencies on topics related to economics and pricing, utility cost allocation and rate design, forecasting, resource planning, energy efficiency and renewable energy program design and evaluation, water conservation, and regulatory policy.

Our Strengths

Frontier is founded on integrity and dedicated to our clients as well as the greater community. We stand by our ability to cultivate collaborative working relationships and deliver top-quality solutions. Our success is grounded in our commitment to optimize value by truly understanding our clients’ needs.

Our Clients

Frontier Associates is proud to provide consulting services to clients that include electric and gas utilities, large commercial and industrial energy consumers, water utilities, regulatory agencies, and governmental entities. Here are some of our past and present clients.

  • American Electric Power Texas
  • Arkansas Electric Cooperative
  • Arkansas Oklahoma Gas
  • Atmos Energy
  • Austin Energy
  • Austin Water Utility
  • Black Hills Energy Arkansas
  • Bluebonnet Electric Cooperative
  • Brazos Electric Cooperative
  • Center for the Commercialization of Electric Technologies
  • CenterPoint Energy
  • CenterPoint Energy Arkansas Gas
  • Chaparral Steel
  • City Utilities of Springfield
  • Commercial Metals Corporation
  • Commonwealth Edison
  • CPS Energy
  • Distributed Energy Financial Group
  • El Paso Electric Company (Texas & New Mexico)
  • Empire District Electric Company
  • Entergy Arkansas
  • Entergy Texas
  • Electric Reliability Council of Texas
  • Independent Electricity System Operator of Ontario
  • MaRS Discovery District
  • North Central Texas Council of Governments
  • Nucor Steel
  • Oklahoma Gas & Electric (Oklahoma & Arkansas)
  • Oklahoma Natural Gas
  • Oncor Electric Delivery
  • Public Utility Commission of Texas
  • Resource Action Programs
  • Sharyland Utilities
  • Southern California Gas Company
  • Southwestern Electric Power Company (Texas & Arkansas)
  • State Energy Conservation Office of Texas
  • Stone, Mattheis, Xenopoulos & Brew, PC
  • Texas Gas Service
  • Texas New Mexico Power Company
  • Xcel Energy Northern States Power – Minnesota
  • Xcel Energy Public Service Company of Colorado
  • Xcel Energy Southwestern Public Service Company (Texas & New Mexico)

Meet our Founders

Bill Brooks and Jay Zarnikau founded Frontier Associates to help gas and electric utilities navigate the ins-and-outs of energy efficiency affairs. Since then, Frontier has grown into a mature, highly-respected firm well-positioned to help our clients succeed as regulatory climates change and new technologies emerge.

Bill Brooks Senior Vice President

Bill spends his spare time in cowboy boots and wranglers herding sheep on his ranch outside of Austin.


Jay Zarnikau Senior Vice President

After hours you can find Jay waterskiing or playing guitar in his rock band.