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ENERGY MANAGEMENT


heat pump chillers to 1x 800T centrifugal heat pump chiller + 1x 1,200T chiller in the existing plant. These chillers would primarily operate year round to provide chilled water and heating in the late fall, early spring, and winter seasons for more efficient operation than the present units.


Water conservation Water conservation measures include the installation of water conserving domestic fixtures plus the reduction of water used by process cooling equipment.


Building envelope The building was sealed to create a continuous barrier of air-tightness, to completely encompass the building and tighten the facilities envelope. This measure incorporates the sealing of roof wall interfaces and the weather-stripping of doors so that it will reduce or eliminate uncontrolled ventilation around the exterior perimeter and will also improve comfort levels. The application of solar coatings to windows will also be studied as part of the detailed engineering phase. Year 2002 was selected as the baseline


year, being the most recent implementation of the project with the most accurate energy consumption figures after the expansion of TOH. The construction period ended 1 August 2005. TOH has continued its efforts to decrease


its environmental footprint by applying life cycle analysis to new equipment to be purchased and provide the optimum operating cost for the life of the equipment; discussing and comparing options with the consultant engineer to implement energy saving


TOH energy budget with and without energy savings 2002-2010 ($)


$20,000,000 $18,000,000 $16,000,000 $14,000,000 $12,000,000 $10,000,000 $800,000 $600,000 $400,000 $200,000 $0


2002 2003 2004 2005 2006 2007 2008 2009 2010 Year


Energy budget without energy savings project Energy savings ($) Energy budget with energy savings project


TOH energy savings from 2002-2010.


measures; minimising waste and increasing the percentage of recycling and composting; and by increasing meter installation when possible to measure energy consumption. Further, TOH is also evaluating the rates for the energy bills and selecting an optimum rate; applying for incentives to have more attractive financials for the project. Lighting upgrades will apply new technologies when


feasible. It is also considering PV solar cells, especially the new Feed in Tariff ON government program. It will also be partnering with service providers, when possible, to do annual audits such as the steam trap survey to minimise steam losses. It is also increasing awareness of the employees to help report losses and leaks, and will become an Energy Star partner.





Providing insights into the vast field of healthcare engineering and facility management


IFHE DIGEST 2014 67


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