Energy Retrofit Program
As part of our Sustainability Strategy Carleton University has partnered with Honeywell to work on a long term program to identify opportunities and implement initiatives designed to conserve energy and create sustainable solutions for our campus.
This comprehensive approach to facility upgrades and enhancements will improve the indoor environment, providing consistent lighting levels, better temperature control and reduced drafts. It is also expected to provide significant savings in utility costs through higher efficiency and reduce carbon emissions.
Wider to individual building renewal is Carleton’s Energy Master Plan. The plan outlines our goals and objectives for managing, conserving and reducing energy consumption, alongside costs and estimated savings for proposed measures, as applicable to the whole campus.
Current Program:
Dunton Tower
Work within Dunton Tower commenced in August 2018 and is expected to be completed by Fall 2019. The program will reduce utility costs, scheduled maintenance and provide an improvement in the working environment of the building.
Total expected annual utility and operational savings: $119,542.
Annual Savings:
- Electricity: Demand: 186 kw, Consumption: 490,125 kWh
- Steam: 787,000 lbs
- Water: 186 m³
- Greenhouse Gases: 76 tonnes
Energy Conservation Measures:
- Replacement of all lighting fixtures with LEDs
- Resealing of building envelope including installing new weather-stripping, caulking and sweeps
- Replacement of the building automation system
- Cleaning of perimeter induction units
- Upgrades to main building HVAC systems
- Thermographic inspection of the building exterior and Remediation
Nesbitt Building
Work within the Nesbitt Building commenced in February 2018 and is expected to be completed by November 2018. The program will reduce utility costs, scheduled maintenance and provide an improvement in the working environment of the building.
Total expected annual utility and operational savings: $68,927.
Annual Savings:
- Electricity: Demand: 45 kw, Consumption: 156,823 kWh
- Steam: 2,558,000 lbs
- Water: 880 m³
- Greenhouse Gases: 176 tonnes
Energy Conservation Measures:
- Replacement of all lighting fixtures with LEDs
- Resealing of building envelope including installing new weather-stripping, caulking and sweeps
- Cleaning of HVAC equipment including return air ducts, reheat coils and main air handling units
- Installation of zone dampers to allow for better space temperature control
- Updates to room temperature controls
- Installation of heat reclaim system on building exhaust air
Maintenance Building
Work for the Maintenance Building began in August 2018 and is expected to be completed by November 2018. The program will reduce operating costs, scheduled maintenance and provide improvement in the working environment of the building:
Total anticipated annual utility and operational savings: $15,145.
Annual Savings:
- Electricity: Demand: 25 kW, Consumption: 30,705 kWh
- Steam: 456,000 lbs
- Greenhouse Gases: 32 tonnes
Energy Conservation Measures:
- Replacement of all lighting fixtures with LED’s
- Resealing of Building Envelope including installing new weather-stripping, caulking and sweeps
Work completed:
The Mackenzie Engineering Building
Work within the Mackenzie Engineering Building commenced in August 2016. The program will reduce utility costs, scheduled maintenance and provide for an improvement in the working environment of the building.
Total expected annual utility and operational savings: $143,209
- Electricity: Demand: 111 KW, Consumption: 839,430 kWh
- Steam: 1,183,680 lbs
- Water: 1,464 m³
- Greenhouse Gases: 188 tonnes
Energy Conservation Measures:
- Replacement of all lighting fixtures with LED’s
- Installation of occupancy sensors
- Resealing of Building Envelope including installing new weather-stripping, caulking and sweeps
- Cleaning of HVAC equipment including return air ducts, perimeter heating,
- reheat coils and main air handling units
- Installation of zone dampers to allow for better space temperature control
Updates to room temperature controls
Minto Case Building
Work within the Minto Case Building commenced in August 2016 and was completed by May 2018. The program reduced utility costs, scheduled maintenance and provided an improvement in the working environment of the building.
Total anticipated annual cost savings: $101,454.00
Annual Savings:
- Electricity: Demand: 71 kW, Consumption: 555,060 kWh
- Steam: 364,538 lbs
- Water: 3,692 m³
- Greenhouse Gases: 104 tonnes
Energy Conservation Measures:
- Replacement of all lighting fixtures with LED’s
- Installation of occupancy sensors
- Resealing of Building Envelope including installing new weather-stripping, caulking and sweeps
- Cleaning of HVAC equipment including return air ducts, perimeter heating, reheat coils and main air handling units
- Installation of zone dampers to allow for better space temperature control
- Updates to room temperature controls
- Replacement of all plumbing fixtures with new low flow models
Loeb Building
Work within the Loeb Building commenced in April 2015 and was complete by the end of October 2015. The program realized reduced utility costs, reduced scheduled maintenance and an improvement in the working environment of the building.
Total expected annual cost savings: $158,281
- Electricity: Demand: 83 KW, Consumption: 605,376 kWh
- Steam: 1,356,982 kg
- Water: 8,054 m³
- Greenhouse Gases: 388 tonnes
Energy Measures
- Lighting: Re-lamping with lower wattage lamps and LED, install light sensors
- Controls: Replace control system, implement demand controlled ventilation
- IT: Computer Sleep mode, Smart Strip Power Bars
- Cleaning of heating and cooling units
- Retrofit plumbing fixtures with high efficiency
- Improvements to building exterior (i.e. exterior doors, windows and walls)
- Air flow balancing
Athletics Centre
The Athletics Centre was the second building selected in the program and allowed for greater investment and savings to be realized. This was completed in winter 2014.
Total expected annual cost savings: $137,409
- Electricity: Demand: 27kW, Consumption: 261,291 kWh
- Steam: 1,800481 lbs
- Natural Gas: 19,132 m3
- Water: 6,298 m³
- Greenhouse Gases: 459 tonnes
Energy Measures
- Lighting: Relamping with lower wattage lamps and LED
- Controls: Replace pneumatic thermostats with DDC, add programmable thermostats.
- IT: Computer Sleep mode, Smart Strip Power Bars
- HVAC: Upgrade pool, physio and med clinic HVAC, concourse unit, Variable Air Volume boxes. Add vsd’s.
- Clean coils and add occupancy sensors
- Replace boiler to with high efficiency boiler
- Retrofit Domestic Water Fixtures
- Improvements to building exterior (i.e. exterior doors, windows and walls)
Robertson Hall
Robertson Hall was the first building to be selected as part of the energy retrofit program. The building’s lighting, mechanical systems and water systems were improved, and ultimately energy use reductions also led to cost savings. This was completed in summer 2014.
Total annual Cost Savings: $120,184
Annual Energy Savings:
- Electricity: Demand: 91kW, Consumption: 791,970 kWh
- Steam: 508,728 lbs
- Water: 3,736 m³
Energy Measures
- Lighting: Convert – 2 lamp fixtures to 1-lamp, LED exit signs
- IT: Computer Sleep mode, Smart Strip Power Bar, Centralized Printing
- Controls: Expand and Modify existing DDC controls, Implement demand control ventilation for meeting rooms, Connect Perimeter Rads to DDC
- HVAC: Replace Dual Duct boxes with Variable Air Volume boxes
- Retrofit Domestic Water Fixtures
- Improvements to building exterior (i.e. exterior doors, windows and walls)