ENERGY MANAGEMENT
from installation contractors for the overall project.
In addition to the projects that have
been completed and those that are currently underway, Sunnybrook has also started developing conceptual plans for a number of other electrical upgrades. For the past five years, it has been studying the feasibility of building an 8 MW combined heat and power (CHP; also referred to as co-generation) plant at the Bayview campus to reduce electrical and thermal energy costs and supplement back-up power in the event of a prolonged utility outage. As Sunnybrook utilises several steam turbine driven chillers for cooling, the hospital’s thermal base load during the summer months further reinforces the viability of a CHP system. Feasibility studies have also included a detailed review of available incentives to help pay construction costs. After being granted preliminary approval for a large incentive from the local electrical utility, Sunnybrook is moving forward with a detailed design for the co-generation plant. With several kilometres of aging 4.16 kV cables that transmit power throughout the Bayview campus, Sunnybrook has also begun studying preliminary concepts for upgrading transmission assets and duct banks. Other examples of conceptual
planning include options for low voltage and medium voltage switchboard upgrades throughout the campus, as well as preliminary design concepts to build a new centralised electrical service space as part of a future project to expand on patient care space. Using an ongoing conceptual planning process allows Sunnybrook to take advantage of both funding for infrastructure renewal and capital projects to accomplish future electrical system upgrades.
Much needed services Many healthcare facilities, in cities throughout the world, have stood the test of time, providing much needed services to their communities. While patient care areas are at the forefront of facility redevelopment efforts, aging building systems provide essential services that are critical to maintaining the reliable operation of clinical areas and cannot be ignored. Facilities managers and planning groups should develop conceptual plans for infrastructure renewal, identify priorities and establish project goals, which work within the constraints of available funding sources. Consideration should be given to: selecting the appropriate design lead; equipment pre-selection processes to reduce the project schedule and provide an early insight into anticipated costs;
and including the necessary detail in engineered drawings and specifications to ensure a successful outcome. Sunnybrook has used this proven methodology to make effective upgrades to critical electrical power infrastructure throughout its real estate portfolio. While the projects discussed are specific to electrical power upgrades, the process used to develop a successful project can be applied to mechanical infrastructure as well as general building upgrades.
Acknowledgements The authors wish to acknowledge Ziya Cetin at Sunnybrook Health Sciences Centre and Steve Smith at HH Angus & Associates for their efforts on a number of the projects mentioned. The authors would also like to recognise the continued support provided by Sunnybrook’s facilities department, corporate planning and development group, purchasing department and senior leadership team.
References 1 Chow P, McRitchie M. Operation critical Sunnybrook increases resiliency with emergency power generating plant renewal project. Canadian Healthcare Facilities 2016; 36 (3): 14-8.
2 Chow P, McRitchie M. Emergency power project at Sunnybrook. Health Estate Journal 2017; 71 (2): 29-31.
IFHE
IFHEDigest Providing insights into the vast field of healthcare engineering and facility management 78 IFHE DIGEST 2018
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