Energy Performance

Energy Performance
Cumulative (vs. Baseline)5%
Annual (2017)-4%

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. The King County Housing Authority's portfolio consists of more than 117 properties and 8.4 million square feet. The BBC partner has improved energy performance by 5% from a 2013 baseline, making progress towards a goal of 20% by 2026. Energy savings have been achieved by implementing lighting retrofits across all properties, HVAC upgrades at commercial buildings, an Energy Performance Contract for lighting and heating upgrades at 35 public housing properties, weatherization upgrades were completed at roughly 30 properties, and an energy awareness program for residents focused on low-cost opportunities for savings.


Looking at the percent improvement in energy performance across all facilities can provide insight into how an organization is saving energy. King County Housing Authority has achieved a 5% reduction in normalized EUI since 2013. Of the 117 properties listed, a full 70% have made reductions in normalized Source EUI in that time. 30% of the properties 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. The King County Housing Authority portfolio consists of mainly low-rise multifamily properties with a wide range of base Source EUIs. The majority of properties have shown energy improvement since 2013, from 58 to 197. The properties located near or below the 0% axis present good opportunities for further savings.