Nature of the project

Existing facility

Description

The following devices or measures were installed:

  • High‑efficiency cooling system with variable speed drive (VSD) compressor
  • Hot‑water thermal storage (with high‑caloric-density bricks) for demand response management
  • LED fixtures featured on the DLC Premium list in a 10,000‑m2 office building
  • Adaptive controls
  • Heat wheel (heat recovery from fresh air)
  • VSD‑equipped 100% fresh‑air HVAC systems
  • Thermal storage unit (hot water storage tank) for power management
  • Drain-water heat recovery
  • Additional roof insulation
  • Triple‑glazed windows

Area of activity

  • Commercial (e.g., head office of a large corporation)

Total
financial support $442,915

Project details

Measures implemented Financial support
Installation of a 250-TR water-cooled centrifugal chiller with an energy efficiency ratio (EER) of 21.50 Btu/hr/Watt $10,945
Cooling system with variable speed drive (VSD) compressor $4,550
Installation of seven hot‑water storage (high‑calorific‑density bricks), each with a capacity of 80 kWh $31,360
1,100 LED light fixtures featured on the DLC Premium list (financial support of $40/fixture) $44,000
Installation of adaptive controls on fixtures $10,800
Heat recovery through the heat wheel installed on the 100% fresh‑air intake system (10,000 L/s) $302,835
Variable-frequency drive with CO2 sensor installed on the 100% fresh-air intake system $21,520
Installation of 10 grey water heat recovery units (financial support of $250/unit) $2,500
1,000 m2 of roof insulation installed (heat resistance of 1.50 m2∙°C/W) $4,895
800 m2 of triple-glazed windows installed (U = 1.60 W/m2∙°C) $9,510
Total $442,915*
*Figures are rounded.

Benefits of the measures and program

  • Heating
    • Reduced heating needs due to improved thermal envelope efficiency
    • Reduced power demand due to the thermal storage unit
  • New cooling system
    • Less electricity used for air conditioning
  • LED lighting
    • Guaranteed energy efficiency of LED fixtures qualified by DesignLights Consortium
    • Up to 48% less electricity used when lighting with DLC Premium light fixtures compared with the market benchmark
    • Save even more with adaptive controls designed to adjust lighting to meet needs
  • 100% fresh-air intake system
    • Reduced heating costs through heat recovery and installation of a VFD with a CO2 sensor
  • Reduced domestic hot-water heating costs due to heat recovery systems
  • Simplified financial support calculation with the OSE tool

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