Interested in participating? Read the latest information below and stay tuned for updates. Program details are subject to change until the City opens the program for applications.
The Deep Retrofit Challenge (the Challenge) is a competition-style program, funded by the Federal Government, which will support deep retrofit projects that significantly reduce greenhouse gas emissions in approximately 10 to 16 buildings in Toronto. Participating buildings will serve to demonstrate the deep retrofits needed to move buildings towards net zero emissions, with the goal of accelerating market adoption. Buildings are the largest source of greenhouse gas emissions today, generated primarily by the burning of fossil fuels for heating and hot water.
The Better Buildings Partnership is committed to ensuring that the application process is fair and transparent. All questions submitted to the City about the Challenge and the responses provided will be available via the Questions and Answers document on this web page – see below. All meetings will be hosted by the City via public information sessions promoted via this web page and by email to past webinar registrants, our Partners, and through other City channels. City staff are unable to meet privately with parties interested in participating in the Challenge prior to application approval.
To be considered for the Challenge buildings must be located within Toronto and be an Ontario Building Code Part 3 building (i.e. greater than 600m2 or greater than three storeys). The following building types would be eligible to participate:
The Challenge will serve as a catalyst to accelerate deep energy retrofits in support of the City’s Net Zero Existing Buildings Strategy, which together with the City’s TransformTO Net Zero Strategy aims to reduce emissions from buildings and all other sectors in Toronto to net zero by 2040.
If you have a question about the Deep Retrofit Challenge, please follow these steps:
Please note: the following information is subject to change when applications launch and final program rules are released.
Participants selected to participate in the Challenge will receive an incentive equal to 25 per cent of their total project costs up to a maximum of up to $500,000 (depending on gross floor area and emissions reduction) to offset the incremental design and construction costs required to achieve a deep retrofit and maximize emissions reductions.
The incentive will be disbursed at the following stages: 1) design; 2) construction; and 3) post-retrofit performance evaluation, based on measured emissions reductions once the project is complete.
Retrofits should aim to reach an 80 per cent emissions reduction or greater over current building emissions, in alignment with the City’s target to reduce emissions to net zero by 2040. At a minimum, the retrofit shall target a 50% reduction in total energy use intensity and a 50% reduction in greenhouse gas (GHG) emissions compared to the pre-retrofit baseline.
Projects must utilize solutions that have a 20-year payback period or better. Calculation of savings will be based on operational energy and emissions. Retrofits must follow a comprehensive whole-building approach that considers the building as a single, integrated system and how components of the building work together.
Challenge participants will be required to:
In addition, projects must:
Priority will be given to:
Eligible Costs (subject to change):
Participants may also apply to the City’s Energy Retrofit Loan (ERL) and High-Rise Retrofit Improvement Support (Hi-RIS) programs to assist in funding the projects, as well as to other incentive programs.
A deep retrofit is an extensive, holistic overhaul of a building’s systems, utilizing best practices with the goal of significantly reducing energy consumption and greenhouse gas emissions. A deep retrofit is either a step or a leap towards net zero emissions. To achieve the City’s net zero greenhouse gas emissions climate target almost all buildings in Toronto will be required to undergo deep energy retrofits.
A deep retrofit can deliver significant savings on energy costs as building energy usage is reduced by 50 per cent or more. Core components of a deep retrofit typically include:
For example, the holistic upgrade of building systems could include air sealing and extra insulation, high-performance triple pane windows, electric heat pumps (ground or air source) for space and water heating, energy recovery (ventilation, drain, or equipment), renewable electricity generation, electric vehicle chargers, building controls and more.
The energy reduction from switching building heating systems away from fossil fuels to electric heat pumps alone is enormous; as air-source heat pumps are typically at least three times more efficient than the most efficient gas-fired heating systems. Ontario’s electricity system is relatively low-emissions meaning any fuel conversion from fossil fuels to electricity will result in large emissions reductions.
To achieve the City’s net zero greenhouse gas emissions climate target almost all buildings, old and new, will need to switch away from fossil fuels to clean electricity. Most buildings will need envelope upgrades, although some of the newest, highest-performance buildings may already have high-performance envelopes and will only require fuel switching (buildings that only plan to undertake a single retrofit measure are not the target of the Deep Retrofit Challenge).
Applications for the Deep Retrofit Challenge are not yet open. In the meantime, please check out the ‘Introductory Webinar’ recording from May 26 in the accordion below to see how you can begin preparing your application.
On May 26, the City held an ‘Introductory Webinar’ for the Deep Retrofit Challenge, see the recording below and the question and answers from the webinar and other sources in the accordion below. The information provided in the ‘Introductory Webinar’ may contain outdated information, it is important to check this web page and the Questions and Answers document below for the most up-to-date information, including webinars, that take place once the application process begins.
More informational webinars will become available when applications open.
The Q&A Deep Retrofit Challenge (DRC) is a summary of the questions received as part of the virtual Deep Retrofit Challenge Introductory Webinar on May 26 or received via our Better Buildings Partnership e-mail (firstname.lastname@example.org). Responses have been edited for clarity and will be updated on a weekly basis.
If you have a question you would like to submit, please follow these steps: