Commercial Implementing various energy efficiency measures in an office building
Nature of the project
Existing facility
Description
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)
Total
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* |
**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
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