Using Real Data to Guide Energy Efficiency at SickKids Hospital
Ron Lowe, Director of Facilities Operations Energy Matters Summit - May 28, 2012
History of Energy Savings – Atrium Site • In 2005: • 11.7% savings; • 10,000 klbs steam
• In 2006: • 44% savings; • 35,500 klbs steam
• In 2010 vs 2006: • 10% savings; • 4,700 klbs steam
History of Energy Savings –Annex Site • In 2009; 2 million kWh annual electricity savings
• In 2009; 21,800 klbs steam savings (20.0%)
History of Energy Savings –McMaster Site • In 2008: • 16.6% savings; • 3,100 klbs steam
• In 2009: • 32.4% savings; • 6,100 klbs steam
• In 2010: • 12.6% increase; • 1,500 klbs steam
2011 Hospital Benchmarking
Target Setting – Energy Cost Savings Potential (2011)
Electricity (ekWh/ft2) Hospitals
Base
Thermal (ekWh/ft2)
Cooling
Base
Heating
Total Energy (ekWh/ft2)
Actual Target Actual Target Actual Target Actual Target Actual SickKids Annex Site SickKids Atrium Site SickKids McMaster Site 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18.9 33.1 35.4 25.6 29.1 16.1 29.7 28.4 17.3 21.0 23.7 26.1 13.7 15.0 23.5 24.7 14.9
18.9 20.2 25.2 20.2 13.8 13.8 20.2 20.2 13.8 20.2 20.2 20.2 13.7 13.8 19.5 20.2 14.9
1.9 4.0 7.0 3.9 1.2 1.1 3.0 3.8 2.0 4.3 3.8 3.0 1.6 1.9 3.7 4.0 0.2
1.9 2.8 2.8 2.8 1.2 1.1 2.8 2.8 1.6 2.8 2.8 2.8 1.6 1.6 2.2 2.8 0.2
> 25% savings potential
6.0 10.8 14.5 22.8 1.9 9.4 23.6 22.2 25.6 19.8 28.2 26.3 8.8 11.7 15.3 30.6 15.2
6.0 10.8 11.3 15.0 1.9 9.0 15.0 15.0 9.0 11.3 15.0 15.0 8.8 9.0 12.0 15.0 11.3
20.1 7.7 13.2 13.5 19.6 9.6 17.3 22.2 22.8 13.2 20.8 12.1 17.5 11.4 9.4 13.5 21.5
10.1 7.7 10.1 13.5 9.8 9.6 13.5 13.5 9.8 10.1 13.5 12.1 9.8 9.8 9.4 13.5 10.1
46.9 55.5 70.1 65.7 51.9 36.2 73.6 76.6 67.7 58.4 76.5 67.5 41.6 40.0 52.0 72.8 51.8
Target
Savings %
36.9 41.5 49.4 51.5 26.7 33.5 51.5 51.5 34.2 44.4 51.5 50.1 33.9 34.2 43.1 51.5 36.5
21.2% 25.3% 29.6% 21.7% 48.4% 7.3% 30.0% 32.8% 49.5% 24.0% 32.7% 25.8% 18.4% 14.6% 17.1% 29.2% 29.6%
Cost Savings ($) $626,271 $1,249,630 $366,734 $728,067 $659,797 $141,849 $898,813 $82,276 $76,923 $1,031,983 $458,685 $734,967 $182,002 $223,780 $855,484 $993,386 $220,166
Are we there yet?
Ø Comprehensive energy audit - 2012 Ø Expected savings: $1 - $2 Million per year Ø Scope: Ø Ventilation systems Ø Steam system Ø Heating & cooling systems Ø Lighting systems Ø Medical and office equipment Ø Elevators Ø Tenant energy use
Ventilation System Improvements
System Testing Identifies Inefficiencies
63,630 CFM; 100 HP
Test results highlight airflow and static pressure anomalies for correction by the project engineers
Targets Drive Continuous Improvement Guided by current best practice among Greening Health Care hospitals, SickKids is working towards energy targets below 40 ekWh/ sf for our two main sites, and below 50 ekWh/sf for McMaster
THANK-YOU!! For more information, contact: Ron Lowe Director, Facilities Operations ronald.lowe@sickkids.ca