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Net-zero Energy and Carbon Community Housing Retrofit: A Case Study

April 22 @ 9:00 am 10:15 am EDT

Ottawa Community Housing has completed Canada’s first Panelized Net-Zero Deep energy Retrofit.  197-203 Presland, a 1970 2 storey 4 unit block of townhomes, has been retrofitted with a pre-fabricated exterior envelope which has drastically reduced its energy consumption while a mechanical retrofit has replaced natural gas burning equipment with heat pumps and a Heat Recovery ventilator to provide green house gas free heating, cooling and domestic hot water. The southern facing roof has been covered with 35kW of solar panels which generate as much energy as the building consumes annually, making this a net-zero energy and green house gas retrofit.  In this presentation, Dan Dicaire, Manager of conservation and sustainability, will walk through the design and construction of the project as well as the financial and societal implications of these deep energy retrofits.  These deep energy retrofit projects not only address housing and affordability issue, they also stimulate the economy while eliminating green house gas emissions from a historically neglected sector.  Come see what real climate action looks like.

Dan Dicaire has an undergraduate and a Master’s degree in chemical engineering from the University of Ottawa.  He is a P. Eng and a Certified Energy Manager.  He currently works for Ottawa Community Housing (OCH) as the Manager of Energy and Sustainability.  Over the past 11 years, he has coordinated the installation of 500 kW of solar arrays on 36 different OCH sites and managed a portfolio wide LED Lighting Retrofit which will save over 4.6 GWh of electricity annually.  He supported OCH’s development team to produce Ontario’s first Mixed-use Passive House at 1290 Coldrey and is currently part of OCH’s development team which is building Canada’s largest Passive House building at 811 Gladstone as well as another 1,000 units worth of passive house low, mid and high rise buildings.   He is also developing the Zero GHG retrofit strategy for OCH’s 15,000 units which started with the Presland Net-Zero Retrofit where a 4 unit block of townhomes was retrofitted to net-zero energy and GHG using pre-fabricated panels.  Under his guidance, OCH’s Sustainability department has saved over $46.5M and in 2020, Dan received the Association of Energy Engineers’ Young Energy Professional of the Year award for Canada. He is the proud father of a lovely 6 year old daughter.


AEE Canada East