Energy Systems Group (ESG), a wholly owned subsidiary of Vectren Corporation (NYSE: VVC), is a leading energy services provider that specializes in energy efficiency, sustainability, and infrastructure modernization solutions in the government, education, healthcare, commercial, and industrial sectors. ESG offers a full range of sustainable infrastructure solutions including waste-to-energy, distributed generation, and renewable energy. ESG is an industry leader in developing and implementing projects under Utility Energy Services Contracts and through public/private partnerships such as Enhanced Use Leases.

At Energy Systems Group, energy efficiency, modernized infrastructure, clean energy, improved learning environments, and smart financial planning are not only the outcomes of the solutions we provide; they serve as the foundation of our strategic vision and goals. Since 1994, the development of long-lasting and trusting relationships continues to be the foundation of our business. ESG has developed over $2.5 Billion in innovative energy efficiency and infrastructure improvements for over 370 customers.

Accredited by the National Association of Energy Service Companies (NAESCO) as an energy services provider, ESG's comprehensive solutions include facility-wide audits, engineering and design services, construction and project management, operations and maintenance, and measurement and verification of savings.