Paper Conference

Proceedings of eSim 2020: 11th Conference of IBPSA-Canada


Exploring the Performance Requirements of a Net Zero Energy Ready Code

Edward Vuong, Iain Macdonald, Mariana Barssoum
Nartional Research Council Canada

Abstract: The Pan-Canadian Framework on Clean Growth and Climate Change's goal for a net zero energy ready (NZER) model code by 2030 resulted in the proposal of a Tiered Code requirement to be included in the 2020 edition of the National Energy Code of Canada for Buildings (NECB). The proposal calls for Tiers 1 to 4, where Tier-1 is the NECB performance level, and Tiers-2 to 4 require a 25%, 50%, and 60% energy saving relative to Tier-1, respectively. This paper summarizes the simulation studies performed to validate that the tiers are technically achievable, and what the cost implications are. The building simulation tool OpenStudio was used to conduct annual energy simulations. The resulting building design solutions are used to: highlight the importance of different building aspects related to meeting the Tiers; present a set of costs associated with achieving the Tiers; and a comparison of the level of performance required by Tier-4 and other NZE/low energy and carbon standards.