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District of Columbia
District of Columbia
20% Reduction in Energy Intensity by 2020 from a 2010 Baseline
90 Million Square Feet
PROGRESS TO DATE
Cumulative (vs. Baseline) 6%
Annual (2012) 6%
Portfolio Energy Performance
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. To date, DC has submitted data for 366 buildings accounting for almost 50 million square feet. The portfolio includes more than 16 million square feet of public buildings and almost 34 million square feet of private buildings. Overall, Since 2010, the portfolio has improved energy performance by approximately 6 percent. DC expects that more buildings will show significant improvement as programs such as the Smarter Business Challenge, Energy Benchmarking, and financing solutions are more widely adopted.
Energy Performance by Facility
Looking at the percent improvement in energy performance across all facilities can provide insight into how an organization is saving energy. Almost half of the buildings in the DC portfolio have improved energy performance by greater than 6 percent. More notably, almost 35 percent of buildings have improved energy performance by more than 10 percent. However, at the same time, almost 30 percent of buildings experienced a decrease in energy performance (i.e. increased energy use) with 20 percent of buildings experiencing a decrease of more than 5 percent. These buildings will be evaluated closely to determine how the District can help drive energy efficiency across all buildings.
Identifying Opportunities for Improvement
Facility-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. DC's portfolio consists of facilities with a wide range of baseline EUI values, most of which are from 50 to 400 kBtu/sq. ft. Almost 70 percent of facilities have shown energy improvement since 2010. The facilities located near or below the 0% axis may present good opportunities for further savings. The data shows that private buildings with higher EUIs have made greater improvements than private buildings with lower EUIs. Whereas, the public buildings demonstrate less of a difference in improvement percentage for buildings with higher EUIs. This difference is not surprising given the fact that the public portfolio contains a diverse mix of buildings types that have different energy use profiles. Whereas, the private building portfolio is primarily office buildings that have more similar energy use profiles.