Cambridge, MA Housing Authority: Energy performance

Energy Performance
Cumulative (vs. Baseline)23%
Annual (2018)2%

Better Buildings Challenge Partners strive to decrease portfolio-wide source energy use intensity (EUI) and to increase the percent improvement compared to a set baseline. Cambridge Housing Authority's portfolio consists of 29 developments and 2.4 million square feet. The housing authority has improved energy performance by 23% from a 2014 baseline, making them a BBC Goal Achiever having met their BBC goal of 20% by 2023 4 years ahead of schedule. Energy savings have been achieved by implementing lighting retrofits across all properties, with complete modernizations under the Enterprise Green Communities program at the three largest developments, and an energy awareness program focused on low-cost opportunities for savings. Cambridge Housing Authority also installed a 180 kW of onsite generation (CHP).


Looking at the percent improvement in energy performance across all properties can provide insight into how an organization is saving energy. Cambridge Housing Authority has achieved energy performance improvement of greater than 15% at thirteen of its properties. There are four properties that have experienced an increase in Source EUI. These properties have been targeted for future energy efficiency improvements.


Property-level energy performance metrics, including EUI and percent improvement to date, are critical to track progress over time and identify opportunities for additional energy savings. Cambridge Housing Authority's portfolio consists of properties with  a wide range of baseline EUI values, most of which are from 100 to 200 kBtu/sq. ft. The majority of properties have shown energy improvement since 2014. The properties located near or below the 0% axis may present good opportunities for further savings.