300 Baker is a 3 story, 417,000 sq. ft. Class-A commercial office building constructed in 1952 and located in Concord, MA. The building has over a dozen tenants with a range of business types and layouts. This property has undergone multiple additions over the decades, and while there have been some major systems upgrades, many of the systems are over 40 years old.

Through the RENU process, 300 Baker is expected to avoid 1,012 tons of CO2 each year. RENU improvements to the property’s building envelope include window upgrades, envelope weatherization/sealing, and LED lighting upgrades. The RENU scope also includes full retrofit of the HVAC system, thus incorporating RENU’s GeoGrid, a Geothermal HVAC system. Along with the GeoGrid, other HVAC upgrades include a perimeter heating system, heat recovery system, dedicated outdoor air system, and air handler/cooling system.

With the aim of maximizing CO2 savings at 300 Baker, RENU installed 900 kW (DC) of rooftop and canopy solar PV. This will help to convert the property into a sustainable real estate asset with low energy demand and high energy resiliency.

Following the construction of the property’s new energy infrastructure, RENU will manage, maintain, and monitor these systems to maximize energy efficiency and environmental health through our integrated energy management and monitoring system.