BUILDING DEMOGRAPHICS
- Tridium BMS
- Distributed air handling systems
- Centralized water-side plant with thermal storage
PROBLEM
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Not getting value from existing sub metering system
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Lacked building level and equipment-level energy transparency
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Difficult to detect and diagnose energy wastage in HVAC systems
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Wanted to become more proactive
ENVIZI SOLUTION
- Equipment Fault Detection Module
- Software metering deployed on 8 x AHU’s, 6 x RAF’s, 2 x Chillers, 2 x Cooling Towers, 5 x Primary & Secondary CHW Pumps, 2 x Condenser Water Pumps, 1 x Boiler, 2 x Heating Hot Water Pumps, 1 x Thermal Storage System
$26k energy cost savings identified in first two weeks of operation (first building to go live)
KEY INSIGHTS
- Supply air pressure set-point not resetting on all AHU’s
- RAF-2 & 8 operating out of hours
- Secondary chilled water pumps operating 24 x 7 when not required
- Shift thermal storage re-charge start time to 10pm (off-peak)
HIGHLIGHTS
- Significant energy cost savings realised through low-cost fine tuning measure
- Demonstrated that SoftMeters can deliver more transparency and value than physical Sub Meters
- Able to avoid planned CAPEX spending on Sub Metering infrastructure
OTHER SUCCESS STORIES
Large Hospital Building
Over $60k energy cost savings opportunities identified over the first 8 weeks of operation.
Commercial Office Building
EFD has demonstrated that, even in a 4-star building with major efficiency programs underway, analytics are required to ensure buildings continue to perform optimally.