St. Joseph’s infrastructure renewal

Installation of new and efficient kitchen fan at St. Joseph’s Kitchen

New VFD installed on the SJHC’s kitchen fan exhaust

New VFD installed on the SJHC’s kitchen fan exhaust

Date: March 2020

Details: The main kitchen exhaust fan (10 HP) at St. Joseph’s was running at a constant speed while operating 24/7. A variable frequency drive (VFD) was installed in order to adjust the fan’s speed to meet the exhaust demand, resulting in reduced energy consumption. The new system runs at a reduced speed of 40 per cent and is scheduled to only operate during the peak hours of the day which are from 6 a.m. to 8 p.m.

Greening Impact:

  • Energy Savings: 63,959 kWh
  • Estimated incentives from SaveOnEnergy: $5,750, evaluation in progress

St. Joseph’s Boiler Heat Recovery

New boiler system at St. Joseph’s Health Centre Power House

New boiler system at St. Joseph’s Health Centre Power House

Date: December 2019

Details: A new heat exchanger was installed in the boiler system to preheat the cold water before beginning the process to remove any oxygen or other gases from the water. The addition of this heat exchanger effectively reduces both heat loss and electricity consumption. The new system also requires zero maintenance.

Greening Impact:

  • Utility savings: $20,500/year
  • Estimated incentives from Enbridge – $6,000
  • Estimated incentives from City – $3,800

LED Bulb Retrofit – Chapel Backlighting

Date: August 2019

Details: A total of 150 fluorescent backlights for the chapel window were replaced with energy efficient LED bulbs. LEDs are more efficient and generally last longer than fluroscent light bulbs. LED bulbs generate less heat and emit light in a specific direction which will reduce the need for reflectors and diffusers.

Greening Impact:

  • Energy saved: approximately 12,352 kWh per year
  • Incentive received from SaveONenergy

OLM Parking Garage Lighting Modification

New LED lights in the OLM Parking Garage

Date: July 2019

Details: A total of 168 metal halide lamps in the parking garage were replaced with energy efficient LED lamps. Lamps in the parking garage are on 24/7. The savings are significant both in reduced electricity consumption and in reduced maintenance requirements. LED lamps also provide stronger and brighter lighting.

Greening Impact:

  • Energy saved: approximately 225,658 kWh per year
  • Incentive received from SaveONenergy

SJHC T8 Light Bulb Lighting Retrofit 2019

Date: Ongoing

Details: Electricians at St. Joseph’s have begun the replacement of compact fluorescent (CFL) lamps in the hospital’s hallways with LED lamps. During the first round, 500 lamps were retrofitted. LED lamps last five times longer than compact fluorescent lamps, and use 60 per cent less energy. Because lamps in hallways operate 24/7, the annual savings are significant. This project is ongoing, and remaining CFL lamps are continuously being replaced with LED lamps inside the hospital.

Greening Impact:

  • Estimated energy savings: approximately 70,080 kWh per year
  • Incentive received from SaveONenergy

Barnicke Cooling Plant Upgrade

New Barnicke wing chillers

Date: September 2019

Details:  Two new 600-ton chillers were installed to replace the older 400-ton chillers. The new chillers work together with an existing 1,200-ton chiller. By having three chillers, we can effectively choose which ones to run based on need. If less cooled air were needed, only one of the smaller chillers would run. If more is needed, we have several options. Either the 1,200-ton chiller runs by itself, the 1,200-ton chiller and one of the 600-ton chillers can run together, or all three chillers would operate at the same time. At this time, a performance study is in progress to determine how to further improve cooling efficiency.

Greening impact:

  • Energy saved: approximately 358,473 kWh per year
  • Incentive received from SaveONenergy