June 2009

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Energy Efficiency in Buildings Recommissioning

Simple recommisioning creates big savings.  Read this article.

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Control Solutions, Inc

The TELUS House headquarters in downtown Vancouver is a hub of internet, telephone, cellular and television service for British Columbia (BC).

The complex includes four adjoining buildings, some constructed as early as the 1910's. The 38 000 square metre (m2) or 409 000 square foot facility holds approximately 900 employees.

TELUS strives to be “green” in all of their operations, and their various building improvements at the complex have garnered a number of awards.

In 2007, Brookfield LePage Johnson Controls (BLJC), which manages the complex, initiated a recommissioning project in collaboration with SES Consulting Inc. of Vancouver. The project included adjustments to the direct digital control (DDC) system with programming support from ESC Automation of Surrey, BC.

http://oee.nrcan.gc.ca/publications/commercial/oee2008-02e2.cfm?attr=20

Simple Steps, Big Savings

After careful inspection, SES concluded that TELUS House requires minimal heating due to significant equipment heat gain. By optimizing the DDC programming, they are reducing steam consumption by over 30 percent, resulting in savings of more than 3000 GJ per year. In addition, a review and subsequent change to the chiller operations, equipment schedules and AHU settings are yielding annual electricity savings of about 700 000 kWh. With a modest capital investment, this recommissioning project is achieving substantial energy savings while improving the comfort of building occupants year-round.

 


 

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