Who We Are

ACES is a Nationwide Energy Management Company.

We Help Our Clients Buy, Sell, and Manage Energy More Efficiently, With Less Risk. 

What We Do

At ACES, we guide our Members and Customers through the complexities of energy risk management. More specifically, we strive to help our Members and Customers buy, sell, and manage energy more efficiently and with less risk. Ultimately, ACES aims to provide excellent service.
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Our Mission

ACES’ mission is to partner with our Members and Customers to provide comprehensive value-added services
and successfully manage their risk.

Our Vision

ACES’ vision is to be the trusted partner and leader in providing excellence in services across a broad spectrum of energy providers.

Culture Statement

ACES’ core philosophy is providing high quality service through commitment and responsiveness to our Members and Customers, diligence in our work, and a proactive approach to everything we do. We attract the best talent by cultivating a diverse, equitable, and inclusive work environment, and valuing accountability, excellence, and integrity. We take pride in being the experts in what we do, and strive to:

    • Encourage teamwork, innovation, and success
    • Foster an environment where all employees feel included and valued
    • Support our communities
    • Promote a fulfilling and rewarding work/life integration

At ACES, we believe that it’s not just what we do, it’s how we do it.

ACES Leadership

MIKE STEFFES

MIKE STEFFES

President & Chief Executive Officer
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    LEAH SMITH

    LEAH SMITH

    Vice President of External Affairs
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      DAVE CLASPELL

      DAVE CLASPELL

      Senior Vice President & Chief Financial Officer
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        JOANNA LEHNER

        JOANNA LEHNER

        Vice President of Finance & Accounting
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          JEFF WALKER

          JEFF WALKER

          Senior Vice President & Chief Risk Officer
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            MELISSA FISCHER

            MELISSA FISCHER

            Vice President of Risk Management Services
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              MATTHEW FISCHESSER

              MATTHEW FISCHESSER

              Vice President & Chief Information Officer
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                PAULA RABB

                PAULA RABB

                Vice President of Human Rescources
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                  JASON PAINTER

                  JASON PAINTER

                  Senior Vice President & Chief Strategy Officer
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                    MINDY KIDWELL

                    MINDY KIDWELL

                    Executive Director of Trading Control
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                      ANDY WHITESITT

                      ANDY WHITESITT

                      Senior Vice President & Chief Business Development Officer
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                        COURTNEY STOOKSBURY PARKER

                        COURTNEY STOOKSBURY PARKER

                        Associate General Counsel, Managing Director of Legal Services
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                          Board of Directors

                          ACES Footprint

                          Owned by 22 Members with over 50 Customers 

                          We serve: electric cooperatives, municipal utilities, public power agencies, independent power producers, renewable energy providers, industrial companies, investor-owned utilities, banks and hedge funds. 

                          We transact several billion dollars annually on behalf of our Clients, who operate in all of the major electricity markets in the United States and have a collective portfolio of over 50,000 MW of both load and resources.

                          We Take Compliance Seriously

                          Compliance and Ethics Hotline