Regence Blue Cross Blue Shield, Portland, Oregon
- Created energy savings by installing a high efficiency chiller
- Optimized plant performance with improved control routines
- Maximized incentives available from The Energy Trust of Oregon
By the Numbers
240,251 annual kWh savings = energy to power 14.7 homes for one year
$207,900 total project costs
$47,200 yearly operational cost savings
$76,265 total program incentives
$84,435 net owner cost
Blue Cross BlueShield Case Study
Columbia Square, Portland, Oregon
- Optimized new equipment and control system to maximize energy savings and reduce utility costs at a 15-story, 274,00 square foot commercial office building
- Maximized incentives available from The Energy Trust of Oregon and BETC
- 45% reduction in energy usage by installing two high efficiency chillers and upgrading their DDC control system
By the Numbers
527,000 annual kWh savings = energy to power 34.4 homes for one year
194,000 gallons per year water savings
$473,000 total project costs
$35,600 yearly operational cost savings
$233,150 total program incentives
$239,850 net owner cost
Columbia Square Case Study
Crown Plaza, Portland, Oregon
- 34% reduction in HVAC energy usage by replacing two 30-year-old chillers
- New chiller with VFD has considerably better efficiency
By the Numbers
403,578 annual kWh savings = energy to power 24.7 homes for one year
$235,925 total project costs
$24,245 yearly operational cost savings
$168,279 total program incentives
$43,401 net owner cost
Crown Plaza Case Study
Lincoln Tower, Tigard, Oregon
- 8.5% reduction in energy usage by upgrading DDC control system
- Optimized existing equipment to maximize energy savings and reduce utility costs
- Maximized incentives available from The Energy Trust of Oregon
- Eliminated unnecessary simultaneous heating and cooling
- Incorporated tighter control strategies like optimum start, supply air temperature reset and economizer control
By the Numbers
241,000 annual kWh savings = energy to power 15.7 homes for one year
$121,793 total project costs
$21,600 yearly operational cost savings
$29,028 total program incentives
$92,765 net owner cost
4.3 years simple payback
Lincoln Tower Case Study
Providence Child Center, Portland, Oregon
- 9.5% reduction in energy usage by upgrading their DDC control system
- Improved occupant comfort
- Maximized incentives from Energy Trust of Oregon
- Retrofited existing controls with new Tracer Summit DDC system to optimize energy savings by:
- Eliminating unnecessary simultaneous heating and cooling
- Incorporating tighter control strategies like optimum start, supply air temperature reset and economizer control
- Installing Variable Frequency Drives on the supply fans
- Retrofiting existing zone boxes with new VAV boxes
- Monitoring rooftop units
By the Numbers
91,000 annual kWh savings = energy to power 5.9 homes for one year
7,000 therms savings
$56,000 total project costs
$12,300 yearly operational cost savings
$28,000 total program incentives
$28,000 net owner cost
2.3 years simple payback
Providence Child Center Case Study
SAIF Corp., Salem, Oregon
- 15% reduction in energy usage by installing a high-efficiency Trane screw chiller
- Maximized incentives available from The Energy Trust of Oregon
- Condenser water and chilled water converted to variable flow to increase the overall plant efficiency.
- Energy saved by pumping only the water required by the machine to match the load of the building.
- VFDs added for control of the two chilled water pumps and two condenser water pumps
By the Numbers
488,734 annual kWh savings = energy to power 29.9 homes for one year
$303,500 total project costs
$41,125 yearly operational cost savings
$97,600 total program incentives
$205,900 net owner cost
SAIF Case Study