GreenerU benchmarked energy use in several buildings across campus and identified 13 candidate buildings as having the greatest energy savings potential.
GreenerU worked with National Grid to create SynergE Worcester, an incentive program to help three Worcester colleges — Clark, Holy Cross, and WPI — which explored ways to achieve deeper energy reductions on the three campuses. Leveraging more than $2 million in incentives through SynergE Worcester, GreenerU identified and implemented energy-saving projects in 13 buildings across the WPI campus. This work included retrocommissioning existing equipment, installing fume hood hibernation controls, lighting upgrades, repairing nonfunctioning glycol heat recovery systems, improved insulation, and optimizing HVAC and lighting features through building automation systems.
With an investment of $5 million, WPI has been able to leverage $2 million in utility incentives and completed projects that are generating $848,000 in annual energy savings, representing a 15% reduction in energy intensity for the campus and providing an 18% internal rate of return.
After thinking we had completed our work in the building, GreenerU noticed that we were falling far short of estimated energy savings. On digging deeper, we found excessive air leakage in the main air handling system. We went back and undertook an innovative approach to sealing the ducts from within. Not only did we achieve impressive energy savings; the building is operating properly for the first time in memory. Students are now learning in a properly heated, cooled, and ventilated environment.