Energy Systems Group (ESG) is accredited by the National Association of Energy Service Companies (NAESCO) as an energy services provider. ESG’s comprehensive offering includes facility-wide audits, energy and facility project development, engineering and design services, implementation, financing, operations and maintenance services and measurement and verification of savings.
ESG’s extensive experience, amassed while developing well over $2 billion of energy performance projects and innovative renewable energy facilities, marks it as one of the nation’s leading energy service companies. ESG is licensed to do business in over 46 states, the U.S. Virgin Islands and Puerto Rico.
Energy Systems Group’s management team brings numerous years of combined experience in energy services, performance contracting, engineering, financing, accounting, sales and marketing, human resources, government relations, information technology, contract development and project management.
The ESG team is comprised of professional engineers, project managers, and energy and operations specialists that bring exceptional expertise in developing and implementing comprehensive infrastructure and energy performance projects of varying complexity and size, including renewable energy, waste-to-energy, utility and co-generation projects.
Senior Vice President, Sustainable Infrastructure
Senior Vice President, Public Sector
Vice President, Sales – Sustainable Infrastructure
Vice President, Finance and Administration
Senior Vice President,
Federal Business Unit
Vice President and General Counsel
Dennis Perrey | Vice President, Finance and Administration
Dennis Perrey is a Certified Public Accountant with over 35 years of leadership experience in accounting, finance, and business management. He oversees ESG’s corporate enterprise resource planning strategies and processes for administrative & support services inclusive of accounting, information technology, payroll and benefits, human resources, and finance. His diversified experience encompasses the service, mining, energy, manufacturing, and construction industries. Dennis earned his Bachelor of Science degree in Accounting and Business from Miami University.
Lawrence Roth | Senior Vice President, Sustainable Infrastructure
Lawrence Roth has over 20 years of diversified design, engineering, operations, project management, construction and maintenance experience. As Senior Vice President, he oversees the business development and operations of Energy Systems Group’s Sustainable Infrastructure business unit. He leads advanced energy infrastructure solutions in the renewable energy, waste-to-energy, and distributed generation sectors. He is responsible for the development and implementation of innovative technologies inclusive of waste to energy, renewable energy, water/wastewater, cogeneration, demand response, and biogas recovery systems. Lawrence earned his Bachelors of Science degree in Building Construction Management from Purdue University.
Ken Ormsbee | Senior Vice President, Federal Business Unit
Ken Ormsbee has more than 20 years of energy-related experience in the areas of marketing and strategic planning, business and operations management, integrated quality assurance, project and risk management, and project development. In July of 1997, he co-founded what is now the Federal Business Unit of Energy Systems Group, a wholly owned subsidiary of Vectren Corp. This business unit was initiated as an internal start-up and has since grown into a market-leading enterprise that designs, builds, and operates onsite mission-critical energy infrastructure, renewable energy, and energy efficiency solutions for federal government and utility customers.
Steve Pride | Senior Vice President, Public Sector
Steve Pride has over 20 years of diversified engineering, sales management, and operations experience. He is responsible for business development and operations for Energy Systems Group’s Public Sector business unit. Steve leads the development of advanced energy and infrastructure solutions in the government, education, healthcare, and commercial sectors. He has overseen the design, construction, and operations for hundreds of millions of dollars in energy performance contracts. Steve earned a Bachelor of Science degree in Mechanical Engineering Technology from Southern Illinois University.
Jonathan Daniel Shell | Vice President and General Counsel
Dan Shell has over 26 years of comprehensive legal and leadership experience in providing practical solutions and guidance while managing risk and maintaining the highest levels of integrity. Dan ensures compliance and successful management of all legal affairs, contracts management and environmental, health and safety at ESG. Dan leads key contract negotiations with ESG customers and their legal counsel. He also manages ESG’s surety company relationship and bond portfolio. Dan earned his Juris Doctor from the University of Arizona and his Bachelor of Science in marketing from Arizona State University. Dan is licensed to practice law in the States of Indiana and Tennessee.
Ken Durham | Vice President, Sales – Sustainable Infrastructure
Ken Durham leads business and project development for Energy Systems Group’s Sustainable Infrastructure business unit. Ken oversees market development, growth, and innovation strategies in the distributed generation, renewable energy and waste-to-energy sectors. He brings over 26 years of sales leadership and senior management experience in performance contracting and energy services. He has been recognized throughout his career as a top ranked leader in sales management. Ken earned his Bachelor of Science degree from the University of Mississippi and his Master of Science degree from Nova University.