Institutional market Implementing various energy efficiency measures in a high school
Nature of the project
New facility
Description of the measures implemented at a high school
- Geothermal heat pumps for heating and cooling
- LED fixtures featured on the DLC Premium list installed in 5,000 m2 of institutional space
- Occupancy sensors
- Adaptive controls
- Heat recovery from fresh air using heat wheel
- Variable-frequency drives on 100% fresh air HVAC systems
- Fresh air preheating thanks to a 250 m2 solar wall on the 100% fresh air ventilation system (less than 89 hours)
- Drain water heat recovery
- Efficient wall and roof insulation
- Triple-glazed windows
Activity sector
- Education (e.g., high school, private school)
Total financial support $796,060
Project details
| Measures implemented | Financial support |
|---|---|
| Installation of 10 35‑kW geothermal heat pumps with new closed loop vertical wells (financial support of $60,983.30/heat pump) | $609,835 |
| Installation of 1,000 DLC Premium LED fixtures in classrooms (financial support of $40/fixture) | $40,000 |
| Installation of 1000 occupancy sensors on the controls of these fixtures | $9,000 |
| Installation of 16 DLC Premium LED fixtures in the gymnasium (financial support of $40/fixture) | $640 |
| Installation of 1000 adaptive controls | $19,500 |
| Heat recovery through the heat wheel installed on the 100% fresh‑air HVAC system (10,000 L/s) | $44,980 |
| A variable‑frequency drive with a CO2 sensor controller installed on the 100% fresh‑air HVAC system | $7,375 |
| Fresh air preheating thanks to a 250 m2 solar wall on the 100% fresh air ventilation system (less than 89 hours) | $51,150 |
| 10 drain‑water heat recovery systems installed in the gymnasium showers (financial support of $250/unit) | $2,500 |
| 1,500 m2 of efficient wall installation installed (heat resistance of 4.5 m2 * °C/W) | $1,095 |
| 2,000 m2 of efficient roof installation installed (heat resistance of 11 m2 * °C/W) | $6,885 |
| 300 m2 of triple‑glazed windows installed (U = 1.6 W/m2 * °C) | $3,100 |
| Total | $796,060* |
Benefits to the measures and program
- Heating :
- Reduced heating needs due to thermal envelope efficiency
- Heat pumps :
- Environmentally friendly heating and air conditioning through the extraction and transfer of heat and cold between the indoor and outdoor air and ground
- Reduced heating and air conditioning costs
- LED lighting fixtures :
- Guaranteed energy efficiency of LED fixtures qualified by the DesignLights Consortium
- Up to 48% less electricity used when lighting with DLC Premium light fixtures compared with the market benchmark
- Save even more by installing occupancy sensors
- Increased savings with adaptive controls
- 100% fresh‑air intake systems :
- Reduced heating costs through heat recovery and installation of a solar wall, variable-frequency drive and CO2 sensor
- Reduced domestic hot-water heating costs by installing heat recovery systems
- Easy to estimate financial support with the OSE tool
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