ERS is a progressive energy engineering and consulting firm based in North Andover, Massachusetts with additional offices in New York, Maine, California, Oregon, and Texas. Our highly trained and experienced staff is made up of Certified Energy Managers (CEMs), Professional Engineers (PEs), and LEED Accredited Professionals (LEED APs) who stay abreast of the latest advancements in energy efficiency technology and cost-saving techniques and who regularly contribute their own findings and ideas to the marketplace. ERS serves clients regionally, nationally, and internationally, and our areas of specialization include assessment and implementation of energy efficiency projects; utility program planning, management, and evaluation; renewable/sustainable building assessment; development of analytical tools and database software systems for project energy analysis; technology assessment; premium efficiency lighting design; and energy code compliance.