Phase 2: Project Proposal/Overview

CSSBI Partners with Enermodal Engineering for Phase 2 of the CN-SBS Research Project

With Phase 1 of the research completed, we wanted to continue the project and move onto Phase 2. This newest Phase would continue to build on the research and take it one step closer to becoming a real, carbon neutral building.

By contracting with Enermodal Engineering for energy modeling and building design services, the Carbon Neutral Steel Building System (CN-SBS) Research Project would show specific products available in the marketplace today that could be incorporated to design and build a net zero energy consumption building.

With 30 years of experience, Enermodal Engineering is Canada’s largest consulting firm specializing in green buildings and communities, and has offices in Kitchener, Calgary, Edmonton, Winnipeg, Halifax, Thornhill and Toronto. With such a strong base of information in green buildings, Enermodal was a clear choice for the CSSBI to continue the work into Phase 2.

Design Approach to Achieving Net Zero

Enermodal’s approach to reducing the energy consumption of a building starts with conservation first, before looking to more efficient energy production and/or procurement. That is to say, the best energy saved is the energy that was not needed in the first place. In creating a net zero retail building, Enermodal will build on the research and design from Phase 1 and address energy efficiency measures in the following order:

  • Reduce energy demand. For example, assessing lighting requirements and building enclosure (better R-values, high performance windows, etc.)
  • More efficient energy delivery. Looking at the impacts of passive systems such as natural ventilation and providing daylighting into the building.
  • More energy efficient energy production. For example, condensing and higher SEER rooftop units and/or changing from rooftop units to more efficient HVAC systems (variable refrigerant flow).
  • On-site energy generation, for example roof mounted solar electric panels.
  • Off-site energy and purchasing of green power.

Approach to Creating Net Zero Designs

In order to “calibrate” the energy modeling assumption, Enermodal will first model the building to meet the Ontario Building codes as well as standard design practice. Where possible, they will include energy modeling assumptions (e.g. installed lighting power density, single zone rooftop units, etc.) that are the current practice in the industry. The resulting energy use intensity (e.g. kWh/m2) will then be compared to published data for non-food retail by Natural Resources Canada.

Enermodal will create five net zero designs with the intent to show the relative capital cost comparisons of achieving net zero through different strategies.