District of Columbia: Energy performance

Average Annual % Improvement2.9%
SUMMARY: PUBLIC-PRIVATE PORTFOLIOS

Better Buildings Challenge partners strive to report whole building data for all properties within their portfolio. Community partners work with building owners in their communities to develop local programs for reporting on energy data. In an innovative community partnership, the Government of the District of Columbia and the Downtown DC Business Improvement District have committed over 21 million square feet of local government properties and 44 million square feet of privately-owned properties to the Better Buildings Challenge. The table at right shows the current breakdown of committed square footage. Private building data was not ready in time for the 2016 Better Buildings Summit.

District of Columbia
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. DC's public portfolio consists of more than 190 buildings and 21 million square feet. DC has improved energy performance by an average of 2.9% per year from a 2010 baseline, which is comparable to an 8% cumulative improvement. This annual average improvement is used because of the large degree of turnover in both the public and private portfolios. These improvements resulted from a combination of deeper energy retrofits in selected properties and improved transparency and optimization of building operations through the www.buildsmartdc.com data portal. 

ENERGY PERFORMANCE BY PROPERTY

Looking at the percent improvement in energy performance across all facilities can provide insight into how an organization is saving energy.  DC has achieved energy performance improvement of greater than 10% at 59 of its properties. There are 80 properties that have experienced an increase in Source EUI.  These properties have been targeted for future energy efficiency improvements.

IDENTIFYING OPPORTUNITIES FOR IMPROVEMENT

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. DC'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 baseline. The properties located near or below the 0% axis may present good opportunities for further savings. The regression line shown indicates larger energy savings at larger buildings, reflecting both relatively higher focus on these properties and the greater opportunity for operational improvements due to the complexity of building systems.