Over $10 million in savings since 2010
Challenge
Low performance. High spend.
- The hospital was equipped with various type of air handlers (dual duct, MZVV, etc.) that all needed to work together to control building pressure and reduce energy spend
- Critical space pressure compliance issues needed to be resolved with an energy consumer (versus an energy manager) mentality
Approach
Modify and maximize.
- Pathian® provided turnkey engineering, construction management and commissioning services for all controls retrofit work
- Reprogrammed over 50 AHU’s to Pathian control strategy
- Modified central chiller plant to variable primary, variable secondary flow system
- Processed custom and prescriptive rebates for all projects
- Implemented Pathian Analytics software to track, evaluate and sustain optimal equipment performance
Results
Stellar savings
- Over $10 million in cumulative savings since 2010
- Total annual savings of $807,300
- $635,300 per yr estimated electric savings (10,402,000 kWh/yr @ $0.061 per kWh)
- $172,000 per yr estimated gas savings(30,600 MCF/yr @ $5.62 per MCF)
- Improved Energy Star rating from a 23 to 75 over a four-year period
- Energy Star certified in 2018 and 2020
- Reduced Site Energy Use Intensity (EUI) from 305 kBtu/sf to 219 Kbtu/sf ASHE E2C Award for >25% energy reduction in 2013
Other industries
Industry
Healthcare
Location
Edgewood, Kentucky
Building Facts
Surgical hospital
Original building in 1970
946,000 sf
510 beds
ENERGY STAR® rating: 75