Bluestone will highlight recent energy conservation projects that have netted millions in utility incentives and energy savings September 10, 2014 10:57 AM Eastern Daylight Time NORWELL, Mass.–(BUSINESS WIRE)–Bluestone Energy Services, LLC, a division of OpTerra Energy and leader in energy conservation engineering and project development services for industrial, commercial, retail and higher-ed clients, announced today that it will participate inNational Grid’s 2014 Customers and Partners Energy Efficiency Summit as a Platinum Sponsor. The summit will be […]