1.5 ConEd Learning Hours

4:00 p.m. ‐ 5:30 p.m.

Part 2—The TEUI Calculator

This session is designed to provide a more detailed look under the hood of the OAA’s TEUI calculator, by offering a
line-by-line tour of the concepts and the simple equations that govern this static energy-modelling tool. We will
show case studies that guided the development of the tool, as well as professional engineer and architecture peer-
reviewed comments, additions, refinements and new developments such as a ventilation and next generation TEDI
module that more closely aligns with Passive House methodologies. We will also study the impact of past, current
and future weather files on building TEUI targets, and the outsized influence of plug-loads on otherwise high-
efficiency buildings. The TEUI calculator will be shown to be an essential tool in communicating goals and targets
within an integrated design team scenario, helping to both optimize the project budgets, performance strategies,
and alignment with our international agreements.

Learning Objectives:

1. Develop an understanding of the OAA’s TEUI calculator, as a voluntary tool designed to help OAA members
   understand energy and carbon targets, and to begin to design buildings to meet these targets, towards both 2030
   and 2050 goals.
   
2. Understand emerging total building carbon targets in the EU and North America, led by large Cities, and the
   pivotal metric that captures total lifecycle building carbon (ie. 12kgCO2e/m2•50yrs), and the part that carbon
   accounting plays in overall LifeCycle Analysis (LCA).
   
3. Develop an understanding of the contribution of building materials to total project carbon, and how this feeds in
   to the TEUI tool, by using complimentary methods like internal BIM tools (ie. DesignLCA.com, EC3, OneClickLCA,
   and simple, rough benchmarking targets), and what requirements Toronto and Vancouver will be looking for when
   submitting to the top tiers of their new green standards.
   
4. Develop a working knowledge of some of the more complex aspects of the impacts of Ventilation rates on TEDI,
   and keeping track of the varying levels of inputs and outputs in Schematic Stage energy analysis, from Plug Loads,
   to Internal Gains, to Solar Gains, to U-Values, and how to target the components with the greatest influence on
   lowering total building cost, total building carbon, as well as total occupant health and building durability, as these
   are all closely related and interdependent.

Andy Thomson, M.Arch, OAA Director

Thomson Architecture

Andy Thomson, an architect since 2016, boasts 28 years of experience in green building, design, research, and writing. A UBC M.Arch program graduate, he's been practising as an Intern Architect since 2003. In 2018, Andy founded Thomson Architecture, Inc., a research‐based firm specializing in advanced ecological, prefab, and BIM design services for complex, high‐ performance projects in Canada, the United States, and the European Union. He's an active member of the Ontario Association of Architects' Climate Action Advisory Group. A lecturer with Toronto Metropolitan University, Andy also engages in local and international public speaking to promote cost‐effective, high‐performance ecological design.