23 May City of Yellowknife takes steps to reduce its environmental footprint
The city’s Multiplex has undergone a technological upgrade to save energy,
by Beth McKay, February 1, 2016.
In the summer of 2015, the City of Yellowknife installed a vortex degasser at its Multiplex facility to reduce energy consumption. The multi-purpose recreation facility houses an Olympic-size ice surface and an NHL-size ice surface. Ammonia is the refrigerant used at the arena.
Remi Gervais, community energy management specialist in Yellowknife, noted that heating surfacing water for ice pads is one of the largest heat loads of an arena, “so it made sense to investigate a way we [the city] could address that.” Read the entire article