MAHWAH, N.J.–(BUSINESS WIRE)–Core Development Group, a leading energy Engineering, Procurement, and Construction (EPC) contractor, celebrates 15 years in business and a strong history of constructing renewable energy solutions. Since its founding, the New Jersey-based firm has grown into a nationally recognized solar energy EPC contractor and a trusted provider of battery storage resiliency and energy infrastructure. Originally formed to help stalled clean energy projects in New Jersey regain