Worcester, MA: Energy performance

Cumulative (vs. Baseline)10%
Annual (2016)-8%
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. The City of Worcester's portfolio consists of more than 80 buildings and 5 million square feet. Worcester has improved energy performance by 10% from a 2009 baseline, making progress towards a goal of 20% by 2020. Lighting, HVAC, Insulation, and Air-Sealing improvements, plus several oil-gas fuel switches were the prime contributors to the City's EUI reduction. In addition, the city has multiple solar array installations throughout the community, include the largest municipally-owned solar array in New England.

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.  Worcester has achieved energy performance improvement of greater than 10% at 35 of its properties. There are 10 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 opportunties for additional energy savings. Worcester's portfolio consists of properties with with a wide range of baseline EUI values, most of which are from 75 to 300 kBtu/sq. ft. The majority of properties have shown energy improvement since 2009. The properties located near or below the 0% axis may present good opportunities for further savings.