Sustainability

The 2025 edition of the QS World University Rankings: Sustainability, released this week by London-based Quacquarelli Symonds, placed U of T first overall out of more than 1,700 institutions across 95 countries.

The closely watched ranking evaluates post-secondary institutions for their environmental impact, social impact and governance.

“On behalf of the ��Ƶ, I am thrilled that our university is once again ranked first in the world in the QS Sustainability Rankings,” said U of T President Meric Gertler. “The U of T community is profoundly committed to the advancement of sustainability as one of the most urgent challenges of our time.

“This year’s ranking confirms our resolve to help lead the way to a sustainable future.”

First launched in 2022, the ranking assesses universities based on QS World University Rankings data, including reputation surveys and research output related to the 17 UN Sustainable Development Goals. It also looks at institutional policies, operational data, alumni impact and national data from the Organisation for Economic Co-operation and Development (OECD) and World Bank.

To determine environmental impact, the ranking evaluates environmental education, research and sustainability. For social impact, it examines employability and outcomes, equality, health and well-being, impact of education and knowledge exchange. And for governance, the ranking looks at indicators such as student representation and transparent financial reporting.

U of T performed particularly well in the social impact category this year, moving up three spots to first globally. It also ranked fifth in the world for environmental impact and tied for 23^rd in governance.

U of T’s performance led a robust showing by Canadian universities. The University of British Columbia shared fifth spot with University College London, making Canada the only country to have two universities in the top five. Two other Canadian universities placed in the top 50: McGill University (15^th) and Western University (30^th).

The QS sustainability ranking comes as U of T forges ahead with a host of climate-focused initiatives on its own campuses including: Project Leap, a $138-million infrastructure project that will cut emissions on the St. George campus in half by 2027; Project SHIFT, a U of T Mississauga initiative to speed up the transition from natural gas to electricity; and a combination of new climate-responsible constructions and energy retrofits to older buildings at U of T Scarborough.

Spurred by these and other efforts, the university’s three campuses last year made a landmark commitment to reduce more greenhouse gases than they emit in the coming years. And U of T continues to make progress on its pledge to divest from fossil fuel investments in its endowment fund.

At the same time, U of T is working to enhance Canada’s green energy sector through projects like the Grid Modernization Centre, a state-of-the-art facility led by Climate Positive Energy, an institutional strategic initiative, that will serve as a hub for testing, development and commercialization.

U of T is also playing a leadership role in sustainability by engaging with regional, national and international partners. For example, the university acted as a founding member of the City of Toronto’s Green Will Initiative, collaborated with the Urban Climate Action Project to help implement the city’s TransformTO climate action strategy and contributed to the Toronto Region Board of Trade’s Banking on Green playbook, which helps Ontario organizations fund green retrofit projects.

Globally, U of T has convened networks aimed at mobilizing multi-sector partnerships, including the U7+ Alliance of World Universities, the University Climate Change Coalition (UC3) and the International Sustainable Campus Network (ISCN). U of T’s sustainability leaders have also been asked to share knowledge and experiences with other universities in Canada, the U.S., Mexico, Germany and other countries.

Most important, U of T is actively creating a new generation of sustainability leaders. Supported by the President’s Advisory Committee on the Environment, Climate Change, and Sustainability (CECCS), which recently created a new student leadership subcommittee, more than 2,000 undergraduate courses in 2024-25 now have a sustainability orientation.

Students also have the option of exploring sustainability from various lenses through the Sustainability Pathways program, or to contribute to projects on- and off-campus via the Campus as a Living Lab and Community-Engaged Learning programs.

Overall, U of T continues to be the highest-ranked Canadian university and one of the top-ranked public universities in the five most closely watched international rankings: Times Higher Education’s World University Rankings, QS World University Rankings, ShanghaiRanking Consultancy’s Academic Ranking of World Universities, U.S. News & World Report’s Best Global Universities and National Taiwan University World University Rankings.

President Meric Gertler highlights U of T community's achievements in holiday message

Christopher.Sorensen — Tue, 10 Dec 2024 14:35:13 +0000

President Meric Gertler highlights U of T community's achievements in holiday message Christopher.Sorensen Tue, 12/10/2024 - 09:35

Topic

Subheadline

“To all our students, faculty, librarians, staff, alumni, volunteers, supporters and partners: Thank you for your contributions to our success”

The ��Ƶ community had a lot to celebrate over the past year, U of T President Meric Gertler says.

In his annual holiday message, President Gertler highlighted U of T’s top spot in the QS sustainability rankings, University Professor Emeritus ��Ƶ’s Nobel Prize in Physics and two students who were recognized with prestigious Rhodes Scholarships.

And that was just the beginning.

“We completed state-of-the-art landscapes and buildings on each of our three campuses,” he says in a video. “We broke new ground for several more. We made progress in the ongoing work of reconciliation. And we opened a new chapter in our history with the installation of our 35th chancellor.”

Most importantly, he adds, more than 20,000 students graduated with U of T degrees, joining a global community of more than 700,000 alumni.

“To all our students, faculty, librarians, staff, alumni, volunteers, supporters and partners: Thank you for your contributions to our success.”

U of T and Siemens Canada partner to transform energy grid

rahul.kalvapalle — Fri, 22 Nov 2024 20:11:53 +0000

U of T and Siemens Canada partner to transform energy grid

rahul.kalvapalle Fri, 11/22/2024 - 15:11

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Siemens Canada CEO and President Faisal Kazi (L), and Leah Cowen, U of T's vice-president, research and innovation, and strategic initiatives, shake hands after signing an institutional partnership agreement focused on advancing sustainability energy systems (photo by Liz Beddall)

Sayyeda Masood

Topic

Our Community

Climate Positive Energy

Industry Partnerships

Institutional Strategic Initiatives

Leah Cowen

Faculty of Applied Science & Engineering

Sustainability

Subheadline

Strategic industry-academic collaboration aims to accelerate adoption of green energy technologies

The ��Ƶ has signed a multi-year agreement with Siemens Canada that seeks to transform the energy grid and boost Canada’s ability to provide clean energy to communities.

The partnership will bring together U of T’s cutting-edge research, commercialization and policy expertise with Siemens’s industry-leading experience in sustainable energy management and intelligent infrastructure – all with a view to advancing Ontario’s energy transition goals and contributing to Canada’s target of achieving net-zero emissions by 2050.

“The ��Ƶ is delighted to strengthen our relationship with Siemens by entering into this institutional partnership agreement,” said Leah Cowen, U of T’s vice-president, research and innovation, and strategic initiatives, at a signing ceremony held Nov. 21 at Hart House.

“This framework agreement will generate broad and deep mutual value enabling both Siemens and U of T to build a green future together as global organizations with global ambitions.”

The partnership expands on U of T’s existing ties with Siemens: the company is partner in U of T’s Grid Modernization Centre, which brings together companies and U of T researchers to advance decarbonization of the electric grid while supporting innovation in clean energy technologies, policy advocacy and financing. The centre is led by Climate Positive Energy, a U of T institutional strategic initiative that leverages research expertise across the university to support efforts to curb carbon emissions, reimagine energy systems and facilitate an equitable transition to a clean energy future in Canada and globally.

“We are thrilled to strengthen our partnership with the ��Ƶ through signing this framework agreement,” said Faisal Kazi, president and CEO of Siemens Canada. “Today marks not just another step but the continuation of a collaborative journey we’ve nurtured over many years. I look forward to seeing continued leadership and innovation as a result of this agreement.”

The partnership with Siemens Canada is part of ongoing efforts across the university to address grid modernization and accelerate the transition to a more sustainable future powered by clean energy.

For example, researchers on all three campuses are currently contributing to efforts to transform Canada’s energy grid – and the infrastructure that powers homes, buildings and electric vehicles – into an intelligent and secure grid. The resulting “smart grid” will leverage the latest advances in AI to appropriately direct energy to the points of highest need at critical times to avoid power outages.

The undertaking combines two areas where U of T is among the world leaders – sustainability and AI. U of T was named the most sustainable university in the world in the 2024 QS World University Rankings, and is a longstanding leader in AI research, thanks in part to the efforts of luminaries like University Professor Emeritus ��Ƶ, whose foundational discoveries and inventions were recently recognized with a Nobel Prize.

At the same time, U of T researchers are also at the forefront of addressing emerging challenges associated with the transition to a smart grid. That includes security considerations – which will be among the key areas of focus for U of T’s partnership with Siemens, a leading supplier of electrical components to utilities.

For example, Professor Deepa Kundur, chair of the Edward S. Rogers Sr. department of electrical and computer engineering in the Faculty of Applied Science & Engineering, leads a research group that’s exploring exploring how to defend power utilities from cyberattacks.

Working with industrial partners across different sectors, these and other U of T researchers are helping companies make better use of resources and enabling safe access to emerging green technologies.

Going forward, U of T’s collaboration with Siemens will expand beyond energy systems to encompass other crucial sectors such as AI, automation and advanced manufacturing.

Learn more about industry partnerships at U of T

Learn more about Climate Positive Energy

First-year student to highlight U of T Mississauga's sustainability initiatives on a global stage at COP29

rahul.kalvapalle — Mon, 11 Nov 2024 15:14:23 +0000

First-year student to highlight U of T Mississauga's sustainability initiatives on a global stage at COP29

rahul.kalvapalle Mon, 11/11/2024 - 10:14

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Vera Allue, a first-year U of T Mississauga student from Spain, is heading to the 29th United Nations Climate Change Conference in Azerbaijan (photo by Nick Iwanyshyn)

Megan Easton

Topic

Our Community

Climate Change

International Students

Sustainability

U of T Mississauga

Undergraduate Students

Subheadline

“What’s happening at UTM is truly inspiring, and it’s an honour to spread awareness about it in the global community”

When Vera Allue learned that she would represent the ��Ƶ Mississauga at COP29 in Azerbaijan, it reaffirmed her belief that she made the right choice as an international student dedicated to climate action.

A first-year student from Spain, Allue says she didn’t realize the scale of U of T’s leadership in sustainability until she came to the university.

“I knew everything here was very modern, and I noticed all the small but important ways that the campus promotes sustainability in areas like waste management and food services – but I didn’t know about the systems and infrastructure behind it,” says Allue, who is pursuing a double major in economics and political science with a minor in environmental law and policy.

“Then I read UTM’s [Climate Positive Plan] to achieve carbon-neutrality by 2043.”

The plan, which includes a commitment – adopted by all three campuses – to become climate-positive by 2050, is one of several initiatives that Allue will spread the word about at the 29th United Nations Climate Change Conference, beginning Nov. 11 and ending Nov. 22.

She’s also going to showcase U of T Mississauga’s local strategies to address climate change, in addition to its array of educational and research programs on environmental issues – efforts that have contributed to U of T being named the most sustainable university in the world in the 2024 QS World University Rankings.

“What’s happening at UTM is truly inspiring, and it’s an honour to spread awareness about it in the global community,” says Allue, who also looks forward to sharing her learnings from the conference with the U of T Mississauga community when she returns.

For Allue, attending the pre-eminent global gathering on climate change is a culmination of her efforts to engage with and raise awareness about climate issues.

When she was only 15 years old, she started a recycling and wastewater project in her hometown of Soria in northern Spain. “I wanted to educate my peers about what they could do, because climate action is often perceived as something that belongs to powerful stakeholders,” she says.

Allue has also been involved with several international organizations that encourage youth to participate in politics and civil society, with a strong focus on environmental issues: she’s currently a European Union (EU) Young European Ambassador and a member of the European Youth Energy Network, which she will also represent at COP29.

Vera Allue started a recycling and wastewater management project in her community when she was 15 (photo by Nick Iwanyshyn)

During her short time at U of T, Allue has gotten involved in several sustainability initiatives, including the UTM Sustainability Ambassador program and the Student Association for Geography, Geomatics and the Environment (SAGE).

She says the support she has received from U of T Mississauga’s Sustainability Office in attending COP29 is proof of the university’s steadfast belief in students’ potential to effect change.

“What I'm really looking forward to is bringing to COP29 the sense of belonging and pride that I feel in UTM’s climate action,” says Allue.

“When I first started contributing to the environmental field, I felt like my voice was barely heard. Now I feel so much optimism because I’ve found spaces like UTM that actively encourage young people to speak up and participate.”

U of T experts use machine learning to analyze where bike lanes should be located for maximum benefit

Christopher.Sorensen — Wed, 23 Oct 2024 14:07:11 +0000

U of T experts use machine learning to analyze where bike lanes should be located for maximum benefit

Christopher.Sorensen Wed, 10/23/2024 - 10:07

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Researchers from U of T's Faculty of Applied Science & Engineering used novel computing approaches to compare utilitarian and equity-driven approaches toward expansion of protected bike lanes (photo by Michelle Mengsu Chang/Toronto Star via Getty Images)

Tyler Irving

Topic

Breaking Research

department of mechanical and industrial engineering

Artificial Intelligence

Cities

Faculty of Applied Science & Engineering

Sustainability

Subheadline

“If you optimize for equity, you get a map that is more spread out and less concentrated in the downtown areas"

A team of researchers from the department of civil and mineral engineering in the ��Ƶ’s Faculty of Applied Science & Engineering are wielding machine learning to understand where cycling infrastructure should be located in order to benefit the most people.

In a paper published in the Journal of Transport Geography, researchers used novel computing approaches to compare two strategies for expansion of protected bike lanes – using Toronto as a model.

“Right now, some people have really good access to protected biking infrastructure: they can bike to work, to the grocery store or to entertainment venues,” says post-doctoral fellow and lead author Madeleine Bonsma-Fisher, who previously researched interactions between bacteria and viruses before applying her data analysis skills to active transportation. “More lanes could increase the number of destinations they can reach, and previous work shows that will increase the number of cycle trips taken.

“However, many people have little or no access to protected cycling infrastructure at all, limiting their ability to get around. This raises a question: is it better to maximize the number of connected destinations and potential trips overall, or is it more important to focus on maximizing the number of people who can benefit from access to the network?”

To delve into the question, Bonsma-Fisher and co-authors used machine learning and optimization, a challenge that required them to explore new computational approaches.

“This kind of optimization problem is what’s called an ‘NP-hard’ problem, which means that the computing power needed to solve it scales very quickly along with the size of the network,” says Shoshanna Saxe¸ associate professor in the department of civil and mineral engineering and one of Bonsma-Fisher’s two co-supervisors alongside Professor Timothy Chan of the department of mechanical and industrial engineering. “If you used a traditional optimization algorithm on a city the size of Toronto, everything would just crash.”

To get around the problem, PhD student Bo Lin invented a machine learning model capable of considering millions of combinations of over a thousand different infrastructure projects in order to test where the most impactful places are to build new cycling infrastructure.

Using Toronto as a stand-in for any large, automobile-oriented North American city, the team generated maps of future bike lane networks along major streets, optimized according to two broad types of strategies.

The first strategy, dubbed the utilitarian approach, focused on maximizing the number of trips that could be taken using only routes with protected bike lanes in under 30 minutes – without regard for who those trips were taken by.

The second, an equity-based strategy, sought to maximize the number of people who had at least some connection to the network.

“If you optimize for equity, you get a map that is more spread out and less concentrated in the downtown areas,” says Bonsma-Fisher. “You do get more parts of the city that have a minimum of accessibility by bike, but you also get a somewhat smaller overall gain in average accessibility.”

This results in a trade-off, says Saxe. “This trade-off is temporary, assuming we will eventually have a full cycling network across the city, but it is meaningful for how we do things in the meantime and could last a long time given ongoing challenges to building cycling infrastructure.”

Another key finding was that certain routes appeared to be essential no matter what strategy was pursued – for example, protected bike lanes along Bloor Street West.

“Those bike lanes benefit even people who don’t live near them and are a critical trunk to maximizing both the equity and utility of the bike network. Their impact is so consistent across models that it challenges the idea that bike lanes are a local issue, affecting only the people close by,” Saxe says. “Optimized infrastructure repeatedly turns out in our model to serve neighbourhoods quite a distance away.”

The team is already sharing their data with Toronto’s city planners to help inform ongoing decisions about infrastructure investments. Going forward, the researchers hope to apply their analysis to other cities as well.

“No matter what your local issues or what choices you end up making, it’s really important to have a clear understanding of what goals you are aiming for and check if you are meeting them,” says Bonsma-Fisher.

“This kind of analysis can provide an evidence-based, data-driven approach to answering these tough questions.”

Large-scale adoption of electric vehicles can lead to human health benefits: Study

Christopher.Sorensen — Mon, 21 Oct 2024 14:05:14 +0000

Large-scale adoption of electric vehicles can lead to human health benefits: Study

Christopher.Sorensen Mon, 10/21/2024 - 10:05

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Researchers from U of T's Faculty of Applied Science & Engineering used computer models to simulate the impact of large-scale adoption of electric vehicles in the U.S. (photo by: Plexi Images/Glasshouse Images/UCG/Universal Images Group via Getty Images)

Tyler Irving

Topic

Breaking Research

Faculty of Applied Science & Engineering

Research & Innovation

Sustainability

Subheadline

"Our simulation shows that the cumulative public health benefits of large-scale EV adoption between now and 2050 could run into the hundreds of billions of dollars"

Large-scale adoption of electric vehicles (EVs) could lead to significant health benefits for populations, according to a new study from the department of civil and mineral engineering in the ��Ƶ’s Faculty of Applied Science & Engineering.

Researchers used computer simulations to show that aggressive electrification of the U.S. vehicle fleet, coupled with an ambitious roll-out of renewable electricity generation, could result in health benefits worth between US$84 billion and 188 billion by 2050.

Even scenarios with less aggressive grid decarbonization mostly predicted health benefits running into the tens of billions of dollars.

“When researchers examine the impacts of EVs, they typically focus on climate change in the form of mitigating CO2 emissions,” says Professor Marianne Hatzopoulou, one of the co-authors of the study, which was published in PNAS.

“But CO2 is not the only thing that comes out of the tailpipe of an internal combustion vehicle. They produce many air pollutants that have a significant, quantifiable impact on public health. Furthermore, evidence shows that those impacts are disproportionately felt by populations that are low-income, racialized or marginalized.”

The research team previously used their expertise in life-cycle assessment to build computer models that simulated the impact of large-scale EV adoption in the U.S. market.

Among other things, they showed that while EV adoption will have a positive impact on climate change, it is not sufficient on its own to meet the Paris Agreement targets. They recommended that EV adoption be used in combination with other strategies, such as investments in public transit, active transportation and higher housing density.

In their latest study, the team sought to account for the non-climate benefits of EV adoption. They adapted their models to simulate the production of air pollutants that are common in fossil fuel combustion, such as nitrogen oxides, sulphur oxides and small particles known as PM2.5.

“Modelling these pollutants is very different from modelling CO2, which lasts for decades and ends up well-mixed throughout the atmosphere,” says study co-author Daniel Posen, an associate professor in the department of civil and mineral engineering.

“In contrast, these pollutants, and their associated health impacts, are more localized. It matters not only how much we are emitting, but also where we emit them.”

While EVs do not produce tailpipe emissions, they can still be responsible for air pollution if the power plants that supply them run on fossil fuels. This also has the effect of displacing air pollution from busy highways to the communities that live near those power plants.

Another complication is that neither the air pollution from the power grid nor that from internal combustion vehicles is expected to stay constant over time.

“Today’s gasoline-powered cars produce a lot less pollution than those that were built 20 years ago, many of which are still on the road,” says Jean Schmitt, post-doctoral fellow and lead author of the study.

“So, if we want to fairly compare EVs to internal combustion vehicles, we have to account for the fact that air pollution will still go down as these older vehicles get replaced. We can also see that the power grid is getting greener over time, as more renewable generation gets installed.”

The team, which also included Professor Heather MacLean of the department of civil and mineral engineering and Amir F. N. Abdul-Manan of Saudi Aramco’s Strategic Transport Analysis Team, chose two primary scenarios to simulate to the year 2050. In the first, they assumed that no more EVs will be built, but that older internal combustion vehicles will continue to be replaced with newer, more efficient ones.

In the second scenario, they assumed that by 2035, all new vehicles sold will be electric. The researchers described this as “aggressive,” but it is in line with the stated intentions of many countries. For example, Norway plans to eliminate sales of non-electric vehicles next year, and Canada plans to follow suit by 2035.

For each of these scenarios, they also considered various rates for the transition of the electric grid to low-emitting and renewable energy sources.

Under each set of conditions, the team simulated air pollution levels across the U.S. and used calculations commonly used by epidemiologists, actuaries and policy analysts to correlate pollution levels with statistical estimates of the number of years of life lost, as well as with estimates of economic value.

“Our simulation shows that the cumulative public health benefits of large-scale EV adoption between now and 2050 could run into the hundreds of billions of dollars,” says Posen.

“That’s significant, but another thing we found is that we only get these benefits if the grid continues to get greener. We are already transitioning away from fossil fuel power generation, and it’s likely to continue in the future. But for the sake of argument, we modelled what would happen if we artificially freeze the grid in its current state.

“In that case, we’d actually be better off simply replacing our old internal combustion vehicles with new ones – but again, this is not a very realistic scenario.”

This finding raises the question of whether it’s more important to decarbonize the transportation sector through EV adoption, or to first decarbonize the power generation sector that’s the ultimate source of pollution associated with EVs.

To that, Hatzopoulou notes that vehicles sold today will continue to be used for decades. “If we buy more internal combustion vehicles now, however efficient they may be, we will be locking ourselves into those tailpipe emissions for years to come, and they will spread that pollution everywhere there are roads,” she says. “We still need to decarbonize the power generation system – and we are – but we should not wait until that process is complete to get more EVs on the road.

“We need to start on the path to a healthier future today.”

U of T researcher tracks 1,000 years of sea ice

Christopher.Sorensen — Tue, 15 Oct 2024 17:18:44 +0000

U of T researcher tracks 1,000 years of sea ice

Christopher.Sorensen Tue, 10/15/2024 - 13:18

Cutline

Minoli Dias, a PhD student at U of T Mississauga, examines coralline algae, which live for approximately 1,500 years and grow in annual layers, to construct a record of changes in sea ice cover over time (photo by Natasha Leclerc)

Topic

Research & Innovation

Sustainability

U of T Mississauga

Subheadline

Minoli Dias says the baseline data she and her fellow researchers are constructing could "inform model projections that predict what future conditions will look like”

Minoli Dias’s interest in sea ice began in an unlikely place: polar bear poop.

She was studying microplastics in polar bear feces and intestinal tracts as part of a research project during her undergraduate years at Queen’s University.

“It was a smelly job, but it was really interesting,” says Dias, who is now a PhD student in the department of Earth sciences at U of T Mississauga.

Her early work revealed some troubling trends: for instance, declining sea ice levels meant that certain species of polar bears were being driven inland – with garbage and landfills increasingly serving as their food sources. At the same time, members of northern communities, particularly the Inuit, had noted in their own experiences, observations and research that declining sea ice levels had impacted access to essential needs – such as transportation, food security through hunting, and other culturally important activities.

It wasn't long before Dias decided she wanted to pursue sea ice research – and ultimately chose to study at U of T Mississauga after speaking with Jochen Halfar, a paleoclimate and paleontology professor and researcher in U of T Mississauga’s Climate Geology Research Group. “UTM gave him a wonderful lab, and we have incredible facilities. But his research and his passion for the work was what really drew me,” she says.

Now part of Halfar’s research group studying changes in sea ice cover in northern Labrador, Dias and her co-researchers are developing sea-ice cover records for the past 1,000 years off the coast of Nunatsiavut and are examining coralline algae as part of their research.

Minoli Dias's view from the research vessel off the coast of Newfoundland and Labrador (photo by Minoli Dias)

Dias says that coralline algae live for approximately 1,500 years and they grow in annual layers (like tree rings). The growth, she explains, is dependent on light. When the algae have more light, meaning there’s less sea ice in the water, they grow a lot thicker. When they have less light, meaning there’s more sea ice cover, the layers grow thinner. By examining these variations and growth over time along with chemical tracers, the research team can essentially watch the sea ice cover change.

Dias conducted field work in the community of Agvituk (Hopedale), N.L. this past summer. The lab also explored multiple sites in Greenland, Norway, Nunavut and the Labrador coast.

“If we can create a network of these types of ocean reconstructions, we’ll be able to have this baseline data going back several centuries that can then hopefully inform model projections that predict what future conditions will look like,” she says.

Since joining the lab, Dias says she has had some incredible experiences – including a recent opportunity to work with members of the Hopedale community.

“We’re not the experts. We don’t live there. It’s the people who live along the coast – and actually live the change and see the change – who are the experts,” she says. “When you speak to community members, they have a clear understanding of how changes occurred over time, and what is the importance of sea ice to these ecosystems.”

Once she completes her PhD, Dias hopes to continue pursuing climate research by either working directly with impacted communities or working to address the effects of pollution or climate change.

Dias says she feels inspired by the many women scientists who came before her, including her female professors who have served as role models in what traditionally has been a male-dominated field.

“They paved the way for us to be able to do the work that we do, and to do it in relative comfort,” she says. “Having these women to look up to is what makes it possible for me to do the type of work that I do, and I hope I can make a similar contribution and pay it forward to the women that are coming after me.”

Harmony Commons becomes Canada's largest building with passive house certification

Christopher.Sorensen — Wed, 25 Sep 2024 16:57:52 +0000

Harmony Commons becomes Canada's largest building with passive house certification

Christopher.Sorensen Wed, 09/25/2024 - 12:57

Cutline

U of T Scarborough’s Harmony Commons residence is the largest passive house-certified building in Canada and the largest passive house dormitory in the world (photo by Ruilin Yuan)

U of T Scarborough Staff

Topic

Our Community

Sustainability

U of T Scarborough

Subheadline

The 746-bed student residence at U of T Scarborough touted as “an example to the world of what Canada is doing in high-performance buildings”

The Harmony Commons student residence is already turning heads at the ��Ƶ Scarborough thanks to its eye-catching design and comfortable living spaces – but its biggest impact may well be in the realm of sustainability.

The building, which first opened its doors to students last year, recently received passive house certification from the Passive House Institute during a recent ceremony on campus. The certification is given to buildings that exhibit exceptional energy efficiency, particularly when it comes to heating and cooling.

Harmony Commons now has the distinction of being the largest passive-certified building in Canada and largest passive house dormitory in the world.

“This is an example to the world of what Canada is doing in high-performance buildings,” said Chris Ballard, president and CEO of Passive House Canada.

“It’s a beacon to institutions and governments around the world that passive house buildings on this scale are doable.”

Harmony Commons received a passive house classic certification during a ceremony on Sept. 18 (photo by Ruilin Yuan)

Passive house construction is generally achieved through an airtight and well-insulated envelope that prevents heat from escaping, allowing buildings with the designation to consume up to 90 per cent less energy compared to conventional structures.

“The responsibility of sustainability falls on everybody,” said Andrew Arifuzzaman, U of T Scarborough’s chief administration and strategy officer.

“We have expertise in building technologies and systems, but if we’re putting up conventional buildings and not driving innovation, then we’re falling short.

“It became clear that this type of building concept made sense and aligned closely with our values.”

The first group of students moved into the nine-storey, 746-bed residence in September 2023, marking the first dormitory-style residence at U of T Scarborough. In keeping with passive house standards, Harmony Commons is well-ventilated and has better air flow than conventional buildings – with the improved air quality intended to help with sleeping and studying.

One of the building’s key innovations is that heat captured from various systems, including exhaust air from kitchens and showers, is used to heat spaces throughout the structure.

In fact, the building is so efficient that the energy it uses to make more than 3,000 meals each day in its dorms and dining hall is less than that used by two average households.

Designed by Handel Architects, Harmony Commons is also fully electric. Since no fossil fuels are burned in heating and cooling the building, it has extremely low carbon emissions.

Harmony Commons has an airtight and well-insulated envelope that prevents heat from escaping. It's also well-ventilated with improved air flow compared to conventional buildings (photo by Tom Arban)

Patricia Escobar, manager of sustainability at U of T Scarborough, notes that typical buildings in Toronto rely on fossil-fuel-based heating systems, but Harmony Commons reduces the amount of heat needed to be generated in the first place.

“This results in significantly fewer greenhouse gas emissions, which supports our goal of becoming a climate positive campus,” she says.

While passive house certification is mostly attempted for small-scale buildings, applying the concepts to a building as large and complex as a dormitory-style residence came with a unique set of challenges – and opportunities.

Arifuzzaman says that building Harmony Commons effectively “de-risked” future large-scale passive house buildings.

“It shows the industry that this type of project can be done in this market and at this scale. It proves that passive house is an attainable standard for future large-scale developments,” he says.

He adds it also allowed many local people working in the trades to be trained in new construction methods for high-performance, sustainable buildings.

“This was a great opportunity to realize that you can contribute to reducing global climate change impact and still live a great quality of life,” he says.

Battery-powered EV chargers – co-developed at U of T – installed on St. George campus

rahul.kalvapalle — Fri, 20 Sep 2024 14:34:25 +0000

Battery-powered EV chargers – co-developed at U of T – installed on St. George campus

rahul.kalvapalle Fri, 09/20/2024 - 10:34

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The Level 3+ battery-powered EV charging stations are available in U of T's Landmark Garage, located beneath King's College Circle on the St. George campus (photo by Safa Jinje)

Safa Jinje

Topic

Breaking Research

department of mechanical and industrial engineering

Facilities and Services

Faculty of Applied Science & Engineering

Landmark

Sustainability

Subheadline

The rapid-charging stations were developed by Canadian EV tech company Jule in collaboration with experts at the Faculty of Applied Science & Engineering

The historic core of the ��Ƶ’s St. George campus is now home to a pair of next-generation electric vehicle (EV) charging stations that utilize technology co-developed at the university.

The two new stations use direct current (DC)-sourced EV chargers boasting integrated battery energy storage systems – novel technology that minimizes strain on the electrical grid.

Located in the Landmark Garage beneath King’s College Circle, the chargers are rated Level 3+, meaning they can charge EVs in under 30 minutes, and bring the total number of EV charging stations in the garage to 50.

The technology underpinning the new charges was developed by Jule, an energy storage and EV solutions company co-founded by Faculty of Applied Science & Engineering alumnus Carmine Pizzurro, in collaboration with U of T faculty members.

Jule embarked on its first research collaboration with U of T shortly after its founding in 2009, teaming up with the Centre for Applied Power Electronics led by Professor Reza Iravani at the Edward S. Rogers Sr. department of electrical and computer engineering.

It also worked closely with the city's electric utility.

“One of our first collaborations was with Toronto Hydro, which led to us being the first company in the world to put lithium-ion batteries on the distribution grid to provide backup power during outages and reduce stress on the grid during peak periods,” says Pizzurro, who earned his bachelor’s and master’s degrees in mechanical engineering at U of T.

Cristina Amon and Carlos Da Silva (fourth and fifth from left, respectively, in the front row) pose with students and staff in the Thermal Management Systems lab (photo by Aaron Demeter)

Pizzurro went on to install Jule’s first battery-powered fast chargers in northern Canada as part of a collaboration with Natural Resources Canada.

But the company needed to address a longstanding challenge with lithium-ion batteries: they’re temperature-sensitive and must be able to operate reliably in both hot and cold environments if they are to help power a net-zero future.

To tackle this issue, Jule in 2018 expanded its partnership with the Faculty of Applied Science & Engineering to include University Professor Cristina Amon and senior research associate Carlos Da Silva of the Advanced Thermofluids Optimization, Modelling and Simulation (ATOMS) laboratory in the department of mechanical and industrial engineering.

The ATOMS experts have been developing computational models and experimental characterization to optimize Jule’s battery thermal management systems – work that is being carried out in a state-of-the-art battery testing facility that received funding from the Canada Foundation for Innovation and Ontario Research Fund.

“Thermal management is an issue that impacts both aspects of Jule’s EV fast charging technology: the power electronics to enable the charging, as well as their unique integrated battery storage system,” says Da Silva, who is also executive director of the U of T Electrification Hub. “Thermal management is critical for mitigating battery degradation. It requires regulating the temperature in such a way that you keep the battery within an optimal range that will extend its life span.”

Jule’s fast chargers use energy stored in batteries, rather than drawing it directly from the electrical grid in the manner of traditional fast chargers. That means they don’t cause grid overloading during peak usage times and can be charged during off-peak hours when electricity is less costly; they also don’t require significant investments in electricity upgrades.

“The battery storage system is charged using current from the electrical grid, which is alternating current (AC); and then this larger battery, which uses direct current (DC), charges the smaller battery in the electric vehicle,” says Amon. “It is more efficient to fast-charge from a stationary battery to an EV – DC to DC – than it is to fast-charge an EV from the electrical grid, which requires converting AC to DC power.”

Jule’s Level 3+ charging station can provide up to 200 kilowatts of power output, yet only needs 45 kilowatts of input power. Amon says this rapid charging speed can help alleviate range anxiety among EV users: “Some drivers fear that EV batteries may not have enough energy to reach a desired destination. But if charging time is much closer to the time required to fill up a tank of a gas-powered car, that can reduce this worry.”

L-R: Professor Reza Iravani, Jule co-founder Carmine Pizzurro, U of T Electrification Hub Executive Director Carlos Da Silva, University Professor Cristina Amon and U of T Engineering Dean Christopher Yip (photo by Safa Jinje)

The Level 3+ stations are joining 48 Level 2 chargers that are already available for public use at the Landmark Garage.

This increases the campus’s charging capacity to over 25,000 charges per year, which can eliminate over 700 tons of greenhouse gas emissions, according to U of T’s Sustainability Office.

“Hosting these first-of-their-kind EV chargers right here on campus extends beyond providing a new and exciting sustainability service to our community,” says Ron Saporta, U of T’s chief operating officer, property services and sustainability. “It represents just one example of how we are supporting the intersection of research, learning and commercialization of sustainable innovations developed by members of our very own U of T community.”

The charging stations will also serve as a living lab to test future thermal innovations jointly developed by U of T Engineering researchers and Jule.

“Having these chargers on campus enables us to have a greater capacity to test the system in ways we are limited by doing in a lab setting,” says Da Silva.

Research project explores how urban agriculture can reduce emissions and increase access to food

Christopher.Sorensen — Thu, 19 Sep 2024 18:37:29 +0000

Research project explores how urban agriculture can reduce emissions and increase access to food

Christopher.Sorensen Thu, 09/19/2024 - 14:37

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Urban agriculture, including growing food on roof tops, may hold the key to cutting greenhouse gas emissions and increasing access to food in cities (photo by Don Campbell)

Topic

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The $3.9-million TOsustain project brings together 15 researchers, including 11 from U of T, and partner organizations involved in food production, food distribution and land management

From raised garden beds under hydro corridors to apartment building roofs, researchers at the ��Ƶ say urban agriculture may hold the keys to improving access to different types of food in large cities while reducing greenhouse gas emissions.

“Urban areas have so much food-growing potential, but our knowledge about how, where and what kind of crops can be grown in and around cities is limited,” says Marney Isaac, a professor in the department of physical and environmental sciences and the department of global development studies at U of T Scarborough.

Marney Isaac takes measurements of soil carbon levels at the Burnhamthorpe Collegiate Institute (BCI) urban farm (submitted photo)

“We know even less about how well urban agriculture can capture and store carbon dioxide, a greenhouse gas that is a major contributor to climate change.”

To help answer these and other questions, Isaac will lead a multifaceted project with a team of researchers and partners from the private and public sector called TOsustain (Toward Sustainable Urban and Peri-urban Agriculture for Net-zero Food Systems). It is being supported by a $3.9-million grant from the NSERC- and SSHRC-funded Sustainable Agriculture Research Initiative.

The first task is to create an inventory of current and potential land for agriculture in urban and peri-urban (the land immediately surrounding urban areas) spaces across Greater Toronto. This includes smaller farms and large-scale growing operations, public lands, hydro corridors, community gardens, green roofs and unused green spaces.

The project will also look at measuring the amount of greenhouse gas (GHG) emissions urban agricultural land can potentially trap and store and identifying farm management practices that can reduce GHG emissions. It will also include research that looks at regulations and policies that either constrain or promote urban agriculture, and develop a model to estimate GHG emissions from urban agriculture.

Isaac says there may be other benefits, too.

She points to the added security of having to rely less on food imports – not to mention the additional emissions created by the need to ship it around the world.

“The majority of our food is imported, so there’s a huge security element,” says Isaac, who is an expert on making agriculture more sustainable.

Postdoctoral researcher Lutchmee Sujeeun at the Black Creek Community Farm (submitted photo)

“This really came to light during the pandemic. If we can do more to localize food production and enhance crop diversity, it can help make our food system more resilient.”

The researchers also want to explore how sustainable agricultural practices – those that require less intensive use of fertilizers, pesticides and irrigation – in urban areas can help reduce GHG emissions compared to conventional agricultural systems. Isaac adds that greater urban food production might also help reduce the pressure on converting forests to farmland in rural areas, a major environmental concern and contributor to climate change.

The project brings together an interdisciplinary team of 15 researchers, including 11 from U of T, with expertise in soil biogeochemistry, crop biology, microbial ecology and urban food systems, among others. It also includes eight partner organizations from the private and public sectors that are involved in food production, food distribution and land management.

Adam Martin, an assistant professor in U of T Scarborough’s department of physical and environmental sciences and project co-lead, says urban farming isn’t about replacing large-scale agricultural systems that supply wheat, for example. Rather, he says it can produce relatively large quantities of fruits and vegetables that can bring economic benefits to urban households.

Martin adds that improving access to food in urban areas has a host of positive downstream effects.

“Local food banks rely heavily on local small-scale farms and community gardens for fresh produce, and food bank use is on the rise,” he says, noting that many urban communities are located in so-called “food deserts,” where the cost of accessing certain food, particularly fresh produce, is much higher than in other communities.

“By increasing people’s access to nutritious and affordable food, it can go a long way in addressing these social and economic challenges.”