Leadership Team

We have assembled a team of world-class experts dedicated to a smarter and cleaner energy future.


Dr. Ali Vojdani

CEO & Board Chairman

Dr. Ali Vojdani has 40 years of experience related to electric grid R&D, consulting, and computer applications. He has served over 100 utilities around the world and successfully grown several technology startups, including Utility Integration Solutions (UISOL).

Terry Nielsen

Executive Vice President & Board Member

Terry is an executive consultant and systems integrator specializing in power industry grid management systems. He has served over 50 electric utilities in 5 continents, improving their grid management and emergency response. He has served on the DistribuTech Advisory Board since 2001 and is the chair of the IEEE DSOP Committee’s Working Group on DMS.

Dr. Dariush Shirmohammadi

Executive Vice President & Chief Engineer

Dariush has over 40 years of experience in the planning, design and operation of transmission and distribution grids, integration of renewable resources, and development and implementation of electricity markets. He is an IEEE Life Fellow.

Sheela Ambre

Chief Financial Officer

Sheela has 20 years of accounting and auditing experience in various industries including private mortgage funds, mortgage bankers and software. She oversees GridBright’s financial functions.

Travis Rouillard

Chief Technology Officer

Travis has over 20 years of experience building and deploying utility software solutions. He is also an industry expert on the technical integration of distributed energy resources into retail and wholesale markets.

Tom Servas

Executive Vice President

Tom is an expert in computer application implementations and systems integration in the electric utility industry. Tom manages GridBright sales and service delivery.

Stephen J. Callahan

Executive Vice President & Chief Marketing Officer

Steve has over 40 years of experience creating business and technology transformation strategies for utilities around the globe. He is a member of the GridWise Alliance Board and DistribuTECH Advisory Committee.

Jana Vojdani

Treasurer & Board Member

Jana has more than 30 years of managerial experience in high-tech and Fortune 500 companies.

Bill Mullenmaster

Executive Vice President & Chief Architect

Bill has worked over the last 20 years with utility customers to build solutions, systems, and integrations to improve a more reliable and sustainable integrated grid. He is a proven technical systems and integration architect for multiple clients in the utility industry.

Eric J. Charette, P.E.

Senior Vice President & Executive Consultant

Eric is recognized as a foremost expert in utility operations with 25 years of experience as a professional electrical engineer. He is a proven thought leader and serves on the DistribuTECH Advisory Committee as Grid Modernization track chair.

Peter Mackin

Senior Vice President

Peter has over 35 years of power system and grid interconnection planning and computer application development experience. He is a member of the WECC Studies Subcommittee and the WECC Reliability Assessment Committee.

Valerie Condie

Vice President, Utility Services, Business & Project Management

Valerie has over 20 years of experience in business management, commercial management, project management, and consulting, mostly focused on digital solutions for transmission and distribution management.

Maria Contreras

Vice President, Operations

Maria has over 20 years of administrative and managerial experience in non-profit and for-profit organizations. Maria oversees Corporate Governance, Operations, Human Resources, IT, Risk, and Compliance.

Nick Orndorff

Vice President

Nick has over 15 years of experience in the electric utility industry focused on software solutions for real-time, operational technology systems. As both a vendor and consultant in the industry, Nick has a track record of delivering successful SCADA, EMS, GMS, OMS, and ADMS projects at many utilities, large and small.

Lance McDaniel

Vice President

Lance is an industry-leading Energy Management System (EMS) specialist with over 27 years of experience in the implementation and management of SCADA/EMS systems around the globe.