Demand Side Energy Management
Demand side energy management refers to the actions taken to reduce overall energy consumption or modify consumption patterns.
Projects History: 1995 - 2009
1995- St. Joseph's Hospital
|Guaranteed payback||6 years|
|Avg. actual annual savings||$339, 750|
Phase I was a powerhouse project with upgrades to the boilers, new variable speed pumping, and installation of a flue gas economizer. Phase II replaced two chillers with environmentally friendly chillers and upgraded air handling units and domestic water fixtures. Phase III was a lighting retrofit at the Marian Villa site.
2006- Parkwood Institute Main Building
|Guaranteed payback||7 years|
|Avg. actual annual savings||$220, 176|
Parkwood St. Joseph’s completed another retrofit project in 2006 at what was then Parkwood Hospital, now Parkwood Institute Main Building. Upgrades were made to lighting, air-flow controls (to match occupancy), the building automation system, and a thermal pool cover was installed on the therapeutic pool. St. Joseph’s was awarded a grant from Natural Resources Canada in the amount of $79,000 and from Union Gas in the amount of $3,600.
Projects History: 2009 - 2019
St. Joseph's Hospital
Exterior and interior lighting controls were improved to offer more control and better match the occupancy schedule of given areas in the facility.
- Exterior and interior lighting controls were improved to offer more control and better match the occupancy schedule of given areas in the facility
- A LEED silver building (Zone A) was constructed and opened in 2015
- Exterior cladding was reconstructed on the ‘B’ Zone building
- A new roof was put on Zone F
- Exterior lighting and parking garage lighting were retrofitted with LED technology
These measures cost $54,185,327 and are saving $134,653 per year. They have reduced annual electricity use by 911,041 kWh, annual steam use by 2,381,794 lbs, and annual greenhouse gas emissions by 1,840,842 kg.
Parkwood Institute Main Building
- Exterior lighting and lighting on Level 5 was replaced with new LED technology
- Variable frequency drives were installed on the Western Counties Wing cooling towers
- Light fixtures and occupancy sensors were upgraded in a custom lighting project
These measures cost $178,010 and are saving $27,888 per year. They have reduced annual electricity use by 250,792 kWh and annual GHG emissions by 7,238 kg.
Parkwood Institute Mental Health Care Building
- The new LEED Gold building constructed on Wellington Road in London replaced the old Regional Mental Health Care London building on Highbury Avenue and is now St. Joseph’s most energy efficient building at only 23 EkWh/ft2
The new Mental Health Care Building cost $341,000,000 to construct and is saving $485,345 in energy costs. It has reduced annual electricity use by 2,284,769 kWh, annual steam use by 16,519,900 lbs and reduced annual greenhouse gas emissions by 1,266,146 kg.
Southwest Centre for Forensic Mental Health Care - St. Thomas
The Regional Mental Health Care St. Thomas building on Sunset Drive was closed down after its long-standing service to the community since 1870. A new Leadership in Energy and Environmental Design (LEED) Gold building was constructed, which opened in 2013. This LEED Gold building was recognized for excellence and innovation in the Institutional Healthcare category at the Don Smith Commercial Building Awards. The new building is very energy efficient at only 35 EkWh/ft2.
- The new forensic mental health building cost $190,000,000 to construct and is saving $168,106 in energy costs. It has reduced annual electricity use by 920,863 kWh, annual steam use by 4,697,143 lbs and reduced annual greenhouse gas emissions by 367,834 kg
Mount Hope Centre for Long Term Care
- Instead of improving the cooling tower operation using VFDs, it was decided to put in two new high efficiency HVAC units to serve this building
This has reduced annual electricity use by 10,000 kWh and reduced annual GHG emissions by 289 kg.