Nature of the project

Existing facility


The following devices or measures were installed:

  • High-efficiency cooling system with variable speed drive (VSD) compressor
  • 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)

financial assistance $247,610

Project details

Measures implemented Financial assistance
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 a 65,000-litre thermal storage unit (hot water storage tank) (difference of 47.5°F) $99,600
1,000 LED light fixtures (3,500 lm) featured on the DLC Premium list installed in open-plan areas (support of $21.50/unit)** $21,545
Installation of adaptive controls (support of $9,75/unit**, or 45% of per-unit support) $9,695
Installation of 100 light fixtures (800 lm) featured on the DLC Premium list in the corridors (support of $5/unit) $490
Heat recovery through the heat wheel installed on the 100% fresh-air intake system (10,000 L/s) $62,360
Variable-frequency drive with CO2 sensor installed on the 100% fresh-air intake system $21,520
10 drain-water heat recovery systems installed (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 $247,610*
*Figures are rounded.
**Receive an extra 45% when you install adaptive lighting controls.

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 assistance calculation with the OSE tool

Have an energy efficiency project and want to find the right program for you?

Contact a representative

OSE calculation tool

More than 200 predefined measures for which the savings and financial assistance are determined in advance.

Calculate* the amount of financial assistance that you could receive using the OSE tool.

A quick and effective tool to:

  • validate the eligibility of the measures you’ve selected
  • assess the amount of financial assistance you may be entitled to receive
  • submit your request for financial assistance
Download the OSE tool [EXE 13 Mo
– in French only]

*Download the latest version of the software to take advantage of the most recent program updates.

Current version updated on May 9, 2022: Version 3.0

Duration : 2 minutes 23 seconds

Transcription de la vidéo Outil OSE

video transcriptionOSE tool

    Discover concrete effects of our program through our project examples

    See all case projects

    How can we help you?

    Have any questions? Call or email us.

    Business newsletter

    Keep informed about our array of energy efficiency programs, products and services.

    Newsletter archives