The City of Boston Library Achieves 25 Percent Energy Savings for Over $150k in Savings

The City of Boston maintains 24 neighborhood libraries, with the Central Library in Copley Square serving the main headquarters. Referred to by architect Charles Follen McKim as the "palace for the people,” the facility has achieved a 25% reduction in energy consumption by upgrading its energy management system.

The Central Library in Copley Square installed its first generation Direct Digital Control (DDC) energy management system (EMS) in 1984. This system only provided basic, scheduled start/stop operations.  To improve system performance, the Boston Public Library installed a state-of-the-art energy management system to integrate legacy HVAC controls equipment and introduce optimal start and stop times along with HVAC operations based on outside temperature conditions. The new EMS monitors outdoor conditions and optimizes equipment run times. In addition, the EMS has the ability to integrate other energy using systems such as lights, security, and water use to allow building management greater control of the entire building’s operation. BPL realized a cost savings of $155,000 with these upgrades, with an annual cost savings of 11% in less than one year. Built in 1895 with an expansion in 1972, the Library housing a collection of rare books and manuscripts was declared a National Historic Landmark by the National Park Service in 1986.

Learn more about this exciting energy efficiency retrofit here.