Halifax Examiner
Summary
The razing of the Cogswell interchange appears to be proceeding to plan. In the interchange’s place will be a streetscape opened up for development. And the city has decreed that new buildings constructed in the area will not be allowed to use conventional oil- or gas-powered heating and cooling systems; rather, the buildings must connect to a district energy system (DES) that will take advantage of waste heat from the sewage plant and deep cool harbour waters to alternately heat and cool the buildings.
This will be the first large-scale DES in the Halifax area — the same basic principles are used in heat pumps for single houses and for Purdy’s Wharf’s deep-water cooling system, but this will be the first DES across an entire neighbourhood of separately owned buildings. As such, there’s a complex weave of engineering, regulatory and financial procedures that need to be worked out.
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