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. New York's portfolio consists of more than 350 buildings and over 200 million square feet. Since 2011, New York has improved energy performance by 4%. Energy savings have been achieved by employing big data energy analytics to identify opportunities, providing low-cost financing for energy saving projects, promoting energy focused operations and maintenance (O&M), and positioning State government to serve as enhanced resource for sharing public and private sector energy management best practices.


Looking at the percent improvement in energy performance across all properties can provide insight into how an organization is saving energy. New York has achieved energy performance improvement of greater than 10% at 77 of its properties. There are 78 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. New York's portfolio consists of properties with a wide range of baseline EUI values, most of which are from 100 to 400 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.