King County, WA: Energy performance

Energy Performance
Cumulative (vs. Baseline)17%
Annual (2019)1%

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. King County's portfolio consists of more than 100 buildings and 5 million square feet. King County has improved energy performance by 17% from a 2011 baseline, making progress towards a goal of 20% by 2024. Energy savings have been achieved through numerous efficiency investments. In addition to mechanical system upgrades at some of the largest county facilities, comprehensive lighting retrofits to LED technology and enhanced controls are driving the savings.  To supplement the investments in new technologies, an annual energy awareness campaign has helped county employees become more engaged in conservation activities.


Looking at the percent improvement in energy performance across all facilities can provide insight into how an organization is saving energy. King County has achieved energy performance improvement of greater than 15% at more than 50 of its properties. There are 14 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. King County's portfolio consists of properties with a wide range of baseline EUI values, most of which are from 100 to 300 kBtu/sq. ft. The majority of properties have shown energy improvement since 2011. The properties located near or below the 0% axis may present good opportunities for further savings.