Internat Energy Solutions Canada

Sustainability Consulting

  • Greenhouse Gas Reduction Strategies
  • Greenshouse Gas Verification
  • Climate Change Vulnerability
    and Adaptation


Energy Efficiency

  • Energy Audits
  • Energy Modelling
  • Sustainable Design



Renewable Energy

  • Feasibility Analysis
  • System Modelling
  • System Design



Toronto Green Standard
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The Toronto Green Standard (TGS) is a set of performance measures with supporting guidelines related to sustainable site and building design for new construction development. There are three versions of the TGS, each relating to different building types:

  1. Low-Rise Non-Residential
  2. Low-Rise Residential
  3. Mid-High Rise (any use)

The standard and checklist for the multiple category conformances can be found on the Toronto Green Standard website.

Each checklist contains various requirements and concepts that fall into the following categories:

  1. Air Quality
  2. Greenhouse Gas Emissions/Energy Efficiency
  3. Water Quality, Quantity and Efficiency
  4. Ecology
  5. Solid Waste

The TGS is classified by two tiers, Tier 1 and Tier 2:

  • Tier 1 is a mandatory requirement for all new construction planning applications submitted to the City of Toronto on or after January 1, 2010.
  • Tier 2 is a voluntary classification which can provide the means to receive incentive funding corresponding to energy savings and development work.

Internat Energy Solutions Canada (IESC) provides necessary expertise regarding the Greenhouse Gas Emissions / Energy Efficiency category of the standard. Specifically, IESC evaluates the required energy performance of the subject property compared to what is required by existing building codes. The TGS sets standards for energy efficiency beyond the 2006 Ontario Building Code (OBC) and Model National Energy Code for Buildings (MNECB). Below are the applicable excerpts taken from the Energy Efficiency category of the TGS.

Required Tier 1

GHG 1.1
Design building(s) to achieve at least 25% efficiency improvement over the Model National Energy Code for Buildings (MNECB) or 13% over the Ontario Building Code.

Voluntary Tier 2

GHG 1.2
Design and construct building (s) to achieve at least 35% efficiency improvement over the MNECB.

GHG 1.3
Install certified in-suite smart meters in all residential units.

The energy performance and subsequent efficiency improvements must be modelled using DOE2 based software platforms such as EE4â„¢ and eQuestâ„¢. IESC has extensive experience with both modelling programs and successfully completed numerous projects. IESC exercises its high level technical knowledge and experience through comprehensive energy modelling.

IESC is recognized on the BBP approved list of Energy Modelling Consultants and Energy Management Firms.

In addition, IESC is highly experienced in navigating the current incentive programs available in Ontario, and possesses the engineering capabilities for proper analysis and evaluation required for the applications.

For further information please contact:

Shawn Ruff
Program Manager
(416) 628-4658 Ext.141
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