Ontario Making it Easier to Build Electric Vehicle Charging Stations

Inflation Reduction Act Clean Energy drives EV adoption and renewable power, but grid interconnection, permitting, and supply chain bottlenecks slow wind, solar, and offshore projects, risking emissions targets despite domestic manufacturing growth and tax incentives.

Key Points

An IRA push to scale EVs and renewables, meeting EV goals but lagging wind and solar amid grid and permitting delays.

✅ EV sales up 50%, 9.2% of 2023 new cars; growth may moderate.

✅ 32.3 GW added, below 46-79 GW/year needed for climate targets.

✅ Grid, permitting, and supply chain delays bottleneck wind and solar.

A year and a half following President Biden's enactment of an ambitious climate change bill, the landscape of the United States' clean energy transition, shaped by 2021 electricity lessons, presents a mix of successes and challenges. A recent study by a consortium of research organizations highlights that while electric vehicle (EV) sales have surged, aligning with the law's projections, the expansion of renewable energy sources like wind and solar has encountered significant hurdles.

The legislation, known as the Inflation Reduction Act, aimed for a dual thrust in America's climate strategy: boosting EV adoption, alongside EPA emission limits, and significantly increasing the generation of electricity from renewable resources. The Act, passed in 2022, was anticipated to propel the United States toward reducing its greenhouse gas emissions by approximately 40 percent from 2005 levels by the end of this decade, backed by extensive financial incentives for clean energy advancements.

Electric vehicle sales have indeed seen a remarkable uptick, with a more than 50 percent increase over the past year, as EV sales surge into 2024 across the market, culminating in EVs comprising 9.2 percent of all new car sales in the United States in 2023. This growth trajectory met the upper range of analysts' predictions post-law enactment, signaling a strong start toward achieving the Act's emission reduction targets.

However, the EV market faces uncertainties regarding the sustainability of this rapid growth. The initial surge in sales was largely driven by early adopters, and the market now confronts challenges such as high prices and limited charging infrastructure, while EVs still trail gas cars in overall market share. Despite these concerns, projections suggest that even a slowdown to 30-40 percent growth in EV sales for 2024 would align with the law's emission goals.

The renewable energy sector's progress is less straightforward. Despite achieving a record addition of 32.3 gigawatts of clean electricity capacity in the past year, the pace falls short of the projected 46 to 79 gigawatts needed annually to meet the United States' climate objectives. While there is potential for about 60 gigawatts of projects in the pipeline for this year, not all are expected to materialize on schedule, indicating a lag in the deployment of new renewable energy sources.

Logistical challenges are a significant barrier to scaling up renewable energy, especially as EV-driven electricity demand rises in the coming years. Lengthy grid connection processes, permitting delays, and local opposition hinder wind and solar project developments. Moreover, ambitious plans for offshore wind farms are hampered by supply chain issues and regulatory constraints.

To achieve the Inflation Reduction Act's ambitious targets, the United States needs to add 70 to 126 gigawatts of renewable capacity annually from 2025 to 2030—a formidable task given the current logistical and regulatory bottlenecks. The analysis underscores the urgency of addressing these non-cost barriers to unlock the full potential of the law's clean energy and emissions reduction ambitions.

In addition to promoting clean energy generation and EV adoption, the Inflation Reduction Act has spurred domestic manufacturing of clean energy technologies. With $44 billion invested in U.S. clean-energy manufacturing last year, this aspect of the law has seen considerable success, and permanent clean energy tax credits are being debated to sustain momentum, demonstrating the Act's capacity to drive economic and industrial transformation.

The law's impact extends to emerging clean energy technologies, offering tax incentives for advanced nuclear reactors, renewable hydrogen production, and carbon capture and storage projects. While these initiatives hold promise for further emissions reductions, their development and deployment are still in the early stages, with tangible outcomes expected in the longer term.

While the Inflation Reduction Act has catalyzed significant strides in certain areas of the United States' clean energy transition, including an EV inflection point in adoption trends, it faces substantial hurdles in fully realizing its objectives. Overcoming logistical, regulatory, and market challenges will be crucial for the nation to stay on course toward its ambitious climate goals, underscoring the need for continued innovation, investment, and policy refinement in the journey toward a sustainable energy future.

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New Brunswick EV Rebates deliver stackable provincial and federal incentives for electric vehicles, used EVs, and home chargers, supporting NB Power infrastructure, lower GHG emissions, and climate goals with fast chargers across the province.

Key Points

Stackable provincial and federal incentives up to $10,000 for EV purchases, plus support for home charging.

✅ $5,000 new EVs; $2,500 used; stackable with federal $5,000

✅ 50% home charger rebate up to $750 through NB Power

✅ Supports GHG cuts, charging network growth, climate targets

New Brunswickers looking for an electric vehicle (EV) can now claim up to $10,000 in rebates from the provincial and federal governments.

The three-year provincial program was announced Thursday and will give rebates of $5,000 on new EVs and $2,500 on used ones. It closely mirrors the federal program and is stackable, meaning new owners will be able to claim up to $5,000 from the feds as well.

Minister of Environment and Climate Change Gary Crossman said the move is hoped to kickstart the province’s push toward a target of having 20,000 EVs on the road by 2030.

“This incentive has to make a positive difference,” Crossman said.

“I truly believe people have been waiting for it, they’ve been asking about it, and this will make a difference from today moving forward to put new or used cars in their hands.”

The first year of the program will cost $1.95 million, which will come from the $36 million in the Climate Change Fund and will be run by NB Power, whose public charging network has been expanding across the province. The department says if the full amount is used this year it could represent a reduction of 850 tonnes of greenhouse gasses (GHGs) annually.

Both the Liberal and Green parties welcomed the move calling it long overdue, but Green MLA Kevin Arseneau said it’s not a “miracle solution.”

“Yes, we need to electrify cars, but this kind of initiative without proper funding of public transportation, urban planning for biking … without this kind of global approach this is just another swipe of a sword in water,” he said.

Liberal environment critic Francine Landry says she hopes this will make the difference for those considering the purchase of an EV and says the government should consider further methods of incentivization like waiving registration fees.

The province’s adoption of EVs has not been overly successful so far, reflecting broader Atlantic EV buying interest trends across the region. At the end of 2020, there were 646 EVs registered in the province, far short of the 2,500 target set out in the Climate Action Plan. That was up significantly from the 437 at the end of 2019, but still a long way from the goal.

New Brunswick has a fairly expansive network of charging stations across the province, claiming to be the first “fully-connected province” in the country, and had hoped that the available infrastructure, including plans for new fast-charging stations on the Trans-Canada, would push adoption of non-emitting vehicles.

“In 2017 we had 11 chargers in the province, so we’ve come a long way from an infrastructure standpoint which I think is critical to promoting or having an electric vehicle network, or a number of electric vehicles operating in the province, and neighbouring N.L.’s fast-charging network shows similar progress,” said Deputy Minister of Natural Resources Tom Macfarlane at a meeting of the standing committee on climate change and environmental stewardship in January of 2020.

There are now 172 level two chargers and 83 fast chargers, while Labrador’s EV infrastructure still lags in neighbouring N.L. today. Level two chargers take between six and eight hours to charge a vehicle, while the fast chargers take about half an hour to get to 80 per cent charge.

The newly announced program will also cover 50 per cent of costs for a home charging station up to $750, similar to B.C. charger rebates that support home infrastructure, to further address infrastructure needs.

The New Brunswick Lung Association is applauding the rebate plan.

President and CEO Melanie Langille said about 15,000 Canadians, including 40 people from New Brunswick, die prematurely each year from air pollution. She said vehicle emissions account for about 30 per cent of the province’s air pollution.

“Electric vehicles are critical to reducing our greenhouse gas emissions,” said Langille. “New Brunswick has one of the highest per capita GHG emissions in Canada. But, because our electricity source in New Brunswick is primarily from non-emitting sources and regional initiatives like Nova Scotia’s vehicle-to-grid pilot are advancing grid integration, switching to an EV is an effective way for New Brunswickers to lower their GHG emissions.”

Langille said the lung association has been part of an electric vehicles advisory group in the province since 2014 and its research has shown this type of program is needed.

“The major barrier that is standing in the way of New Brunswickers adopting electric vehicles is the upfront costs,” Langille said. “So today’s announcement, and that it can be stacked on top of the existing federal rebates, is a huge step forward for us.”

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Canadian Electric Bus Fleet leads North America as Toronto's TTC deploys 59 battery-electric, zero-emission buses, advancing public transit decarbonization with charging infrastructure, federal funding, lower maintenance, and lifecycle cost savings for a low-carbon urban future.

Key Points

Canada's leading battery-electric transit push, led by Toronto's TTC, scaling zero-emission buses and charging.

✅ Largest battery-electric bus fleet in North America

✅ TTC trials BYD, New Flyer, Proterra for range and reliability

✅ Charging infrastructure, funding, and specs drive 2040 zero-emissions

The largest battery-powered electric bus fleet in North America is Canadian. Toronto's transit system is now running 59 electric buses from three suppliers, and Edmonton's first electric bus is now on the road as well. And Canadian pioneers such as Toronto offer lessons for other transit systems aiming to transition to greener fleets for the low-carbon economy of the future.

Diesel buses are some of the noisier, more polluting vehicles on urban roads. Going electric could have big benefits, even though 18% of Canada's 2019 electricity from fossil fuels remains a factor.

Emissions reductions are the main reason the federal government aims to add 5,000 electric buses to Canada's transit and school fleets by the end of 2024. New funding announced this week as part of the government's fall fiscal update could also give programs to electrify transit systems a boost.

"You are seeing huge movement towards all-electric," said Bem Case, the Toronto Transit Commission's head of vehicle programs. "I think all of the transit agencies are starting to see what we're seeing ... the broader benefits."

While Vancouver has been running electric trolley buses (more than 200, in fact), many cities (including Vancouver) are now switching their diesel buses to battery-electric buses in Metro Vancouver that don't require overhead wires and can run on regular bus routes.

The TTC got approval from its board to buy its first 30 battery-electric buses in November 2017. Its plan is to have a zero-emissions fleet by 2040.

That's a crucial part of Toronto's plan to meet its 2050 greenhouse gas targets, which requires 100 per cent of vehicles to transition to low-carbon energy by then.

But Case said the transition can't happen overnight. 

Finding the right bus
For one thing, just finding the right bus isn't easy.

"There's no bus, by any manufacturer, that's been in service for the entire life of a bus, which is 12 years," Case said.

"And so really, until then, we don't have enough experience, nor does anyone else in the industry, have enough experience to commit to an all-electric fleet immediately."

In fact, Case said, there are only three manufacturers that make suitable long-range buses — the kind needed in a city the size of Toronto.

Having never bought electric buses before, the city had no specifications for what it needed in an electric bus, so it decided to try all three suppliers: Winnipeg-based New Flyer; BYD, which is headquartered in Shenzhen, China, but built the TTC buses at its Newmarket, Ont. facility; and California-based Proterra.

They all had their strengths and weaknesses, based on their backgrounds as a traditional non-electric bus manufacturer, a battery maker and a vehicle technology and design startup, respectively.

"Each bus type has its own potential challenges." Case said all three manufacturers are working to resolve any adoption challenges as quickly as possible.

But the biggest challenge of all, Case said, is getting the infrastructure in place. 

"There's no playbook, really, for implementing charging infrastructure," he said.

Each bus type needed their own chargers, in some cases using different types of current. Each type has been installed in a different garage in partnership with local utility Toronto Hydro.

Buying and installing them represented about $70 million, or about half the cost of acquiring Toronto's first 60 electric buses. The $140 million project was funded by the federal Public Transit Infrastructure Fund.

Case said it takes about three hours to charge a battery that has been fully depleted. To maximize use of the bus, it's typically put on a long route in the morning, covering 200 to 250 kilometres. Then it's partially charged and put on a shorter run in the late afternoon.

"That way we get as much mileage on the buses as we can."

Cost and reliability?
Besides the infrastructure cost of chargers, each electric bus can cost $200,000 to $500,000 more per bus than an average $750,000 diesel bus. 

Case acknowledges that is "significantly" more expensive, but it is offset by fuel savings over time, as electricity costs are cheaper. Because the electric buses have fewer parts than diesel buses, maintenance costs are also about 25 per cent lower and the buses are expected to be more reliable.

As with many new technologies, the cost of electric buses is also falling over time.

Case expects they will eventually get to the point where the total life-cycle cost of an electric and a diesel bus are comparable, and the electric bus may even save money in the long run.

As of this fall, all but one of the 60 new electric buses have been put into service. The last one is expected to hit the road in early December.

Summer testing showed that air conditioning the buses reduced the battery capacity by about 15 per cent. 

But the TTC needs to see how much of the battery capacity is consumed by heating in winter, at least when the temperature is above 5 C. Below that, a diesel-powered heater kicks in.

Once testing is complete, the TTC plans to develop specifications for its electric bus fleet and order 300 more in 2023, for delivery between 2023 and 2025.

Potential benefits
Even with some diesel heating, the TTC estimates electric buses reduce fuel usage by 70 to 80 per cent. If its whole fleet were switched to electric buses, it could save $50 million to $70 million in fuel a year and 150 tonnes of greenhouse gases per bus per year, or 340,000 tonnes for the entire fleet.

Other than greenhouse gases, electric buses also generate fewer emissions of other pollutants. They're also quieter, creating a more comfortable urban environment for pedestrians and cyclists.

But the benefits could potentially go far beyond the local city.

"If the public agencies start electrifying their fleet and their service is very demanding, I think they'll demonstrate to the broader transportation industry that it is possible," Case said.

"And that's where you'll get the real gains for the environment."

Alex Milovanoff, a postdoctoral researcher in the University of Toronto's department of civil engineering, did a U of T EV study that suggested electrified transit has a crucial role to play in the low-carbon economy of the future.

His calculations show that 90 per cent of U.S. passenger vehicles — 300 million — would need to be electric by 2050 to reach targets under the global Paris Agreement to fight climate change.

And that would put a huge strain on resources, including both the mining of metals, such as lithium and cobalt, that are used in electric vehicle batteries and the electrical grid itself.

A better solution, he showed, was combining the transition to electric vehicles with a reduction in the number of private vehicles, and higher usage of transit, cycling and walking.

"Then that becomes a feasible picture," he said.

What's needed to make the transition
But in order to make that happen, governments need to make investments and navigate the 2035 EV mandate debate on timelines, he added.

That includes subsidies for buying electric buses and building charging stations so transit agencies don't need to make fares too high. But it also includes more general improvements to the range and reliability of transit infrastructure.

"Electrifying the bus fleet is only efficient if we have a large public transit fleet and if we have many buses on the road and if people take them," Milovanoff said.

In its fall economic update on Monday, the federal government announced $150 million over three years to speed up the installation of zero-emission vehicle infrastructure.

Josipa Petrunic, CEO of the Canadian Urban Transit Research and Innovation Consortium, a non-profit organization focused on zero-carbon mobility and transportation, said that in the past, similar funding has paid for high-powered charging systems for transit systems in B.C. and Ontario. But that's only a small part of what's needed, she said.

"Infrastructure Canada needs to come to the table with the cash for the buses and the whole rest of the system."

She said funding is needed for:

Feasibility studies to figure out how many and what kinds of buses are needed for different routes in different transit systems.

Targets and incentives to motivate transit systems to make the switch.

Incentives to encourage Canadian procurement to build the industry in Canada.

Technology to collect and share data on the performance of electric vehicles so transit systems can make the best-possible decisions to meet the needs of their riders.

Petrunic said that a positive side-effect of electrifying transit systems is that the infrastructure can support, in addition to buses, electric trucks for moving freight.

"It's not a lot given that we have 15,000 buses out there in the transit fleet," she said.

"But we should be able to get a lot further ahead if we match the city commitments to zero emissions with federal and provincial funding for jobs creating zero-emissions technologies."

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nanoFlowcell Bi-ION Flow Battery delivers renewable-energy storage for EVs and grids, using seawater-derived electrolyte, membrane stacks, fast refueling, low-cost materials, scalable tanks, and four-motor performance with long range and lightweight energy density.

Key Points

A flow cell using Bi-ION to power EVs and grids with fast refueling and scalable, low-cost storage.

✅ Seawater-derived Bi-ION electrolyte; safe, nonflammable, low cost

✅ Fast refueling via dual tanks; membrane stack generates power

✅ EV range up to 1200 miles; scalable for grid-scale storage

nanoFlowcell is a European company headquartered in London that focuses on flow battery technology. Flow batteries are an intriguing concept. Unlike lithium batteries or fuel cells, they store electricity in two liquid chambers separated by a membrane. They hold enormous potential for low cost, environmentally friendly energy storage because the basic materials are cheap and abundant. To add capacity, simply make the tanks larger.

While that makes flow batteries ideal for energy storage — whether in the basement of a building or as part of a grid scale installation that utilities weigh against options like hydrogen for power companies today in practice — their size and weight make them a challenge for use in vehicles. That hasn’t stopped nanoFlowcell from designing a number of concept and prototype vehicles over the past 10 years and introducing them to the public at the Geneva auto show. Its latest concept is a tasty little crumpet known as the Quantino 25.

The Flow Battery & Bi-ION Fluid
The thing that makes the nanoFlowcell ecosystem work is an electrically charged fluid called Bi- ION derived from seawater or reclaimed waste water. It works sort of like hydrogen in a fuel cell, a frequent rival in debates over the future of vehicles today for many buyers. Pump hydrogen in, run it through a fuel cell, and get electricity out. With the Quantino 25, which the company calls a “2+2 sports car,” you pump two liquids to the membrane interface to make electricity.

There are two 33-gallon tanks mounted low in the chassis much the way a lithium-ion battery pack fits into a normal electric car. Fill up with Bi-ION, and you have a car that will dash to 100 km/h in 2.5 seconds, thanks to its 4 electric motors with 80 horsepower each. And get this. According to Autoblog, the company says with full tanks, the Quantino 25 has a range of 1200 miles! Goodbye range anxiety, hello happy motoring.

We should point out that water weighs about 8 pounds per gallon, so the “fuel” to travel 1200 miles would weigh roughly 528 pounds. A conventional lithium-ion battery pack with its attendant cooling apparatus that could travel that far would weigh at least 3 times as much, even as EV battery recycling advances aim for a circular economy today. Granted, the Quantino 25 is not a production car and very few people have ever driven one, but that kind of range vs weight ratio has got to get your whiskers twitching a little in anticipation.

Actually, the folks at Autocar did drive an early prototype in 2016 at the TCS test track near Zurich, Switzerland, and determined that it was a real driveable car. My colleague Jennifer Sensiba reported in April of 2019 that the company’s Quantino test vehicle passed the 350,000 km mark (220,000 miles) with no signs of damage to the membrane or the pumps, and didn’t seem to have suffered any wear at all. The vehicle’s engineers pointed out that it had driven for 10,000 hours at this point. The company says it wants to offer its flow battery technology to EV manufacturers and give the system a 50,000-hour guarantee. That translates to well over 1 million miles of driving.

The problem, of course, is that there is no Bi-ION refueling infrastructure just yet, but that doesn’t mean someday there couldn’t be. Tesla had no Supercharger network when it first started either and things turned out reasonably well for Musk and company.

nanoFlowcell USA Announced
nanoFlowcell announced this week that it has established a new division based in New York to bring its flow battery technology to America. The mission of the new division is to adapt the nanoFlowcell process to US-specific applications and develop nanoFlowcell applications in America. Priority one is beginning series production of flow battery vehicles as well as the constructing a large scale bi-ION production facility that will provide transportable renewable energy and could complement vehicle-to-grid power models for communities for nanoFlowcell applications.

The Bi-ION electrolyte is a high density energy carrier that makes renewable energies storable and transportable in large quantities. The company says it will produce the energy carrier bi-ION from 100 percent renewable energy. Flow cell energy technology is an important solution to substantially reduce global greenhouse gas emissions as laid out in the Paris Agreement, the company says. Its many benefits include being a safe and clean energy source for many energy intensive processes and transportation services.

“Our nanoFlowcell flow cell and bi-ION energy carrier are key technologies for a successful energy transition,” says Nunzio La Vecchia, CEO of nanoFlowcell Holdings. “We need to make energy from renewable energy safe, storable and transportable to drive environmentally sustainable economic growth. This requires a well thought out strategy and the development of the appropriate infrastructure. With the establishment of nanoFlowcell USA, we are reaching an important milestone in this regard for our future corporate development.”

Focus On Renewable Energy
The production costs of Bi-ION are directly linked to the cost of electricity from renewable sources. With the accelerated expansion of renewable energy under the Inflation Reduction Act along with EV grid flexibility efforts across markets, nanoFlowcell expects the cost of electricity from solar power to be relatively low in the future which will further strengthen the competitiveness of energy sources such as Bi-ION.

“With the Inflation Reduction Act, the U.S. has made the largest investment in clean energy in U.S. history, and the potential implications for renewable energy are far-reaching.” But La Vecchia points out, “We will not seek government investments for nanoFlowcell USA to expand our manufacturing facilities and infrastructure in the United States. Where appropriate, we will enter into strategic partnerships to build and expand manufacturing and infrastructure, and to integrate nanoFlowcell technologies into all sectors of the economy.”

“More importantly, with nanoFlowcell USA, we want to help accelerate the decarbonization of the global economy and create economic, social and ecological prosperity. After all, estimates suggest that the clean energy sector will create 500,000 additional jobs. We want to do our part to make this happen.”

‍The Takeaway
nanoFlowcell is about more than electric cars. It wants to get involved in grid-scale energy storage, and moves like Mercedes-Benz energy storage venture signal momentum in the sector today. But to those of us soaking in the hot tub warmed by excess heat from a nearby data center here at CleanTechnica global headquarters, it seems that its contribution to emissions-free transportation could be enormous. Maybe some of those companies still chasing the hydrogen fuel cell dream, as a recent hydrogen fuel cell report notes Europe trailing Asia today, might find the company’s flow battery technology cheaper and more durable without all the headaches that go with making, storing, and transporting hydrogen.

A Bi-ION refueling station would probably cost less than a tenth as much as a hydrogen filling station. A link-up with a major manufacturer would make it easier to build out the infrastructure needed to make this dream a reality. Hey, people laughed at Tesla in 2010. If nothing else, this is a company we will be keeping our eye on.

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First Glasgow Electric Buses will transform the Caledonia depot with 160 charging points, zero-emission operations, grid upgrades, and rapid charging, supported by Transport Scotland funding and Alexander Dennis manufacturing for cleaner urban routes by 2023.

Key Points

Electric single-deckers at Caledonia depot with 160 chargers and upgrades, delivering zero-emission service by 2023

✅ 160 charging points; 4-hour rapid recharge capability

✅ Grid upgrades to power a fleet equal to a 10,000-person town

✅ Supported by Transport Scotland; built by Alexander Dennis

First Bus will install 160 charging points and replace half its fleet with electric buses at its Caledonia depot in Glasgow.

The programme is expected to be completed in 2023, similar to Metro Vancouver's battery-electric rollout milestones, with the first 22 buses arriving by autumn.

Charging the full fleet will use the same electricity as it takes to power a town of 10,000 people.

The scale of the project means changes are needed to the power grid, a challenge highlighted in global e-bus adoption analysis, to accommodate the extra demand.

First Glasgow managing director Andrew Jarvis told BBC Scotland: "We've got to play our part in society in changing how we all live and work. A big part of that is emissions from vehicles.

"Transport is stubbornly high in terms of emissions and bus companies need to play their part, and are playing their part, in that zero emission journey."

First Bus currently operates 337 buses out of its largest depot with another four sites across Glasgow.

The new buses will be built by Alexander Dennis at its manufacturing sites in Falkirk and Scarborough.

The transition requires a £35.6m investment by First with electric buses costing almost double the £225,000 bill for a single decker running on diesel.

But the company says maintenance and running costs, as seen in St. Albert's electric fleet results, are then much lower.

The buses can run on urban routes for 16 hours, similar to Edmonton's first e-bus performance, and be rapidly recharged in just four hours.

This is a big investment which the company wouldn't be able to achieve on its own.

Government grants only cover 75% of the difference between the price of a diesel and an electric bus, similar to support for B.C. electric school buses programmes, so it's still a good bit more expensive for them.

But they know they have to do it as a social responsibility, and large-scale initiatives like US school bus conversions show the direction of travel, and because the requirements for using Low Emissions Zones are likely to become stricter.

The SNP manifesto committed to electrifying half of Scotland's 4,000 or so buses within two years.

Some are questioning whether that's even achievable in the timescale, though TTC's large e-bus fleet offers lessons, given the electricity grid changes that would be necessary for charging.

But it's a commitment that environmental groups will certainly hold them to.

Transport Scotland is providing £28.1m of funding to First Bus as part of the Scottish government's commitment to electrify half of Scotland's buses in the first two years of the parliamentary term.

Net Zero Secretary Michael Matheson said: "It's absolute critical that we decarbonise our transport system and what we have set out are very ambitious plans of how we go about doing that.

"We've set out a target to make sure that we decarbonise as many of the bus fleets across Scotland as possible, at least half of it over the course of the next couple of years, and we'll set out our plans later on this year of how we'll drive that forward."

Transport is the single biggest source of greenhouse gas emissions in Scotland which are responsible for accelerating climate change.

In 2018 the sector was responsible for 31% of the country's net emissions.

Electric bus
First Glasgow has been trialling two electric buses since January 2020.

Driver Sally Smillie said they had gone down well with passengers because they were much quieter than diesel buses.

She added: "In the beginning it was strange for them not hearing them coming but they adapt very easily and they check now.

"It's a lot more comfortable. You're not feeling a gear change and the braking's smoother. I think they're great buses to drive."

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Pyroelectric Energy Harvesting captures low-grade heat via thin-film materials, converting temperature fluctuations into power for waste heat recovery in electronics, vehicles, and industrial machinery, offering a thermoelectric alternative for microelectronics and exascale systems.

Key Points

Thin-film pyroelectric harvesting turns temperature changes into electricity, enabling low-grade waste heat recovery.

✅ Converts low-grade heat fluctuations into usable power

✅ Thin-film design suits microelectronics and edge devices

✅ Alternative to thermoelectrics for waste heat recovery

The electronic device you are reading this on is currently producing a modest to significant amount of waste heat that emerging thermoelectric materials could help recover in principle. In fact, nearly 70% of the energy produced annually in the US is ultimately wasted as heat, much of it less than 100 degrees Celsius. The main culprits are computers and other electronic devices, vehicles, as well as industrial machinery. Heat waste is also a big problem for supercomputers, because as more circuitry is condensed into smaller and smaller areas, the hotter those microcircuits get.

It’s also been estimated that a single next-generation exascale supercomputer could feasibly use up to 10% of the energy output of just one coal-fired power station, and that nearly all of that energy would ultimately be wasted as heat.

What if it were possible to convert that heat energy into a useable energy source, and even to generate electricity at night from temperature differences as well?

#google#

It’s not a new idea, of course. In fact the possibility of thermoelectric energy generation, where thermal energy is turned into electricity was recognised as early as 1821, around the same time that Michael Faraday developed the electric motor.

Unfortunately, when the heat source is ‘low grade’, aka less than 100 degrees Celsius, a number of limitations arise, and related approaches for nighttime renewable generation face similar challenges as well. For it to work well, you need materials that have quite high electrical conductivity, but low thermal conductivity. It’s not an easy combination to come by.

Taking a different approach, researchers at the University of California, Berkeley, have developed thin-film that uses pyroelectric harvesting to capture heat-waste and convert heat to electricity in prototype demonstrations. The findings were published today in Nature Materials.

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