This Thin-Film Turns Heat Waste From Electronics Into Electricity


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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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Scrapping coal-fired electricity costly, ineffective, says report

Canada Coal Phase-Out Costs highlight Fraser Institute findings on renewable energy, wind and solar integration, grid reliability, natural gas backup, GDP impacts, greenhouse gas emissions reductions, nuclear alternatives, and transmission upgrades across provincial electricity systems.

 

Key Points

Costs to replace coal with renewables, impacting taxpayers and ratepayers while ensuring grid reliability.

✅ Fraser Institute estimates $16.8B-$33.7B annually for renewables.

✅ Emissions cut from coal phase-out estimated at only 7.4% nationally.

✅ Natural gas backup and grid upgrades drive major cost increases.

 

Replacing coal-fired electricity with renewable energy will cost Canadian taxpayers and hydro ratepayers up to $33.7 billion annually, with only minor reductions in global greenhouse gas emissions linked to climate change, according to a new study by the Fraser Institute.

The report, Canadian Climate Policy and its Implications for Electricity Grids by University of Victoria economics professor G. Cornelis van Kooten, said replacing coal-fired electricity with wind and solar power would only cut Canada’s annual emissions by 7.4%,

Prime Minister Justin Trudeau’s has promised a reduction of 40%-45% compared to Canada’s 2005 emissions by 2030, and progress toward the 2035 clean electricity goals remains uncertain.

The study says emission cuts would be relatively small because coal accounted for only 9.2% of Canada’s electricity generation in 2017. (According to Natural Resources Canada, that number is lower today at 7.4%).

In 2019, the last year for which federal data are available, Canada’s electricity sector generated 8.4% of emissions nationally — 61.1 million tonnes out of 730 million tonnes.

“Despite what advocates, claim, renewable power — including wind and solar — isn’t free and, as Europe's power crisis lessons suggest, comes with only modest benefits to the environment,” van Kooten said.

“Policy makers should be realistic about the costs of reducing greenhouse gas emissions in Canada, which accounts for less than 2% of emissions worldwide.”

The report says the increased costs of operating the electricity grid across Canada — between $16.8 billion and $33.7 billion annually or 1% to 2% of Canada’s annual GDP — would result from having to retain natural gas, consistent with net-zero regulations allowing some natural gas in limited cases, as a backup to intermittent wind and solar power, which cannot provide baseload power to the electricity grid on demand.

Van Kooten said his cost estimates are conservative because his study “could not account for scenarios where the scale of intermittency turned out worse than indicated in our dataset … the costs associated with the value of land in other alternative uses, the need for added transmission lines, as analyses of greening Ontario's grid costs indicate, environmental and human health costs and the life-cycle costs of using intermittent renewable sources of energy, including costs related to the disposal of hazardous wastes from solar panels and wind turbines.”

If nuclear power was used to replace coal-fired electricity, the study says, costs would drop by half — $8.3 billion to $16.7 billion annually — but that’s unrealistic because of the time it takes to build nuclear plants and public opposition to them.

The study says to achieve the federal government’s target of reducing emissions to 40% to 45% below 2005 levels by 2030 and net-zero emissions by 2050, would require building 30 nuclear power plants before 2030, highlighting Canada’s looming power problem as described by analysts — meaning one plant of 1,000-megawatt capacity coming online every four months between now and 2030.

Alternatively, it would take 28,340 wind turbines, each with 2.5-megawatts capacity, or 1,050 turbines being built every four months, plus the costs of upgrading transmission infrastructure.

Van Kooten said he based his calculations on Alberta, which generates 39.8% of its electricity from coal and the cost of Ontario eliminating coal-fired electricity, even as Ontario electricity getting dirtier in coming years, which generated 25% of its electricity, between 2003 and 2014, replacing it with a combination of natural gas, nuclear and wind and solar power.

According to Natural Resources Canada, Nova Scotia generates 49.9% of its electricity from coal, Saskatchewan 42.9%, and New Brunswick 17.2%.

In 2018, the Trudeau government announced plans to phase-out traditional coal-fired electricity by 2030, though the Stop the Shock campaign seeks to bring back coal power in some regions. 

Canada and the U.K. created the “Powering Past Coal Alliance” in 2017, aimed at getting other countries to phase out the use of coal to generate electricity.

 

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Europe must catch up with Asian countries on hydrogen fuel cells - report

Germany Hydrogen Fuel Cell Market gains momentum as policy, mobility, and R&D align; National Hydrogen Strategy, regulatory frameworks, and cost-of-ownership advances boost heavy transport, while Europe races Asia amid battery-electric competition and infrastructure scale-up.

 

Key Points

It is Germany and Europe's hydrogen fuel cell ecosystem across policy, costs, R&D, and mobility and freight deployments.

✅ Policy support via National Hydrogen Strategy and tax incentives

✅ TCO parity improves for heavy transport vs other low-emission tech

✅ R&D targets higher temps, compactness for road, rail, sea, air

 

In a new report examining the status of the German and European hydrogen fuel cell markets, the German government-backed National Platform Future of Mobility (NPM) says there is “a good chance that fuel cell technology can achieve a break-through in mobile applications,” even as the age of electric cars accelerates across markets.

However, Europe must catch up with Asian countries, it adds, even as a push for electricity shapes climate policy. For Germany and Europe to take on a leading role in fuel cell technologies, their industries need to be strengthened and sustainably developed, the report finds. In its paper, the NPM Working Group 4 – which aims to secure Germany as a place for mobility, battery cell production, recycling, training and qualification – states that the “chances of fuel cell technology achieving a break-through in the automotive industry – even in Europe – are better than ever,” echoing recent remarks from BMW's chief about hydrogen's appeal.

The development, expansion and use of the technology in various applications are now supported by “a significantly modified regulatory framework and new political ambitions, as stipulated in the National Hydrogen Strategy,” while updated forecasts show e-mobility driving electricity demand in Germany, the report stresses. In terms of cost of ownership, “hydrogen solutions can hold their own compared to other technologies” and there are “many promising developments in the transport sector, especially in heavy transport.”

If research and development efforts can help optimise installation space and weight as well as increase the operating temperature of fuel cells, hydrogen solutions can also become attractive for maritime, rail and air transport, even as other electrochemical approaches, such as flow battery cars, progress, the report notes. Tax incentives -- such as the Renewable Energy Sources Act (EEG) surcharge exemption for green hydrogen -- can contribute to the technology’s appeal, it adds.

Fuel cell drives are often seen as a way to decarbonise certain areas of transport, such as heavy trucks. However, producing the hydrogen in a sustainable way consumes a lot of renewable electricity that power companies must supply in other sectors, and experts say electricity vs hydrogen trade-offs favor battery-electric trucks because they are much cheaper to run than other low-emission technologies, including fuel cells.

 

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Stalled spending on electrical grids slows rollout of renewable energy

IEA Grid Expansion Warning highlights stalled investment in power lines and transmission infrastructure, risking renewable energy rollout for solar, wind, EVs, and heat pumps, and jeopardizing climate targets under the Paris Agreement amid connection bottlenecks.

 

Key Points

IEA alert urging grid investment to expand transmission, connect renewables, and keep 1.5 C climate goals on track.

✅ 80 million km of lines needed by 2040, per IEA

✅ Investment must double to $600B annually by 2030

✅ Permitting delays stall major cross-border projects

 

Stalled spending on electrical grids worldwide is slowing the rollout of renewable energy and could put efforts to limit climate change at risk if millions of miles of power lines are not added or refurbished in the next few years, the International Energy Agency said.

The Paris-based organization said in the report Tuesday that the capacity to connect to and transmit electricity is not keeping pace with the rapid growth of clean energy technologies such as solar and wind power, electric cars and heat pumps being deployed to move away from fossil fuels, a gap reflected in why the U.S. grid isn't 100% renewable today.

IEA Executive Director Fatih Birol told The Associated Press in an interview that there is a long line of renewable projects waiting for the green light to connect to the grid, including UK renewable backlog worth billions. The stalled projects could generate 1,500 gigawatts of power, or five times the amount of solar and wind capacity that was added worldwide last year, he said.

“It’s like you are manufacturing a very efficient, very speedy, very handsome car — but you forget to build the roads for it,” Birol said.

If spending on grids stayed at current levels, the chance of holding the global increase in average temperature to 1.5 degrees Celsius above pre-industrial levels — the goal set by the 2015 Paris climate accords — “is going to be diminished substantially,” he said.

The IEA assessment of electricity grids around the globe found that achieving the climate goals set by the world’s governments would require adding or refurbishing 80 million kilometers (50 million miles) of power lines by 2040 — an amount equal to the existing global grid in less than two decades.

Annual investment has been stagnant but needs to double to more than $600 billion a year by 2030, the agency said, with U.S. grid overhaul efforts aiming to accelerate upgrades.

It’s not uncommon for a single high-voltage overhead power line to take five to 13 years to get approved through bureaucracy in advanced economies, while lead times are significantly shorter in China and India, according to the IEA, though a new federal rule seeks to boost transmission planning.

The report cited the South Link transmission project to carry wind power from northern to southern Germany. First planned in 2014, it was delayed after political opposition to an overhead line meant it was buried instead, while more pylons in Scotland are being urged to keep the lights on, industry says. Completion is expected in 2028 instead of 2022.

Other important projects that have been held up: the 400-kilometer (250-mile) Bay of Biscay connector between Spain and France, now expected for 2028 instead of 2025, and the SunZia high-voltage line to bring wind power from New Mexico to Arizona and California, while Pacific Northwest goals are hindered by grid limits. Construction started only last month after years of delays.

On the East Coast, the Avangrid line to bring hydropower from Canada to New England was interrupted in 2021 following a referendum in Maine, as New England's solar growth is also creating tension over who pays for grid upgrades. A court overturned the statewide vote rejecting the project in April.

 

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Requests for Proposal launched for purchase of clean electricity in Alberta

Canada Clean Electricity Procurement advances federal operations with renewable energy in Alberta, leveraging RECs, competitive sourcing, Indigenous participation, and grid decarbonization to cut greenhouse gas emissions and stimulate new clean power infrastructure.

 

Key Points

A plan to procure clean power and RECs, cutting emissions in Alberta and attributing use where renewables are absent.

✅ RFPs to source new clean electricity in Alberta

✅ RECs from net new Canadian renewable generation

✅ Mandatory Indigenous participation via equity or set-asides

 

Public Services and Procurement Canada (PSPC) is taking concrete steps to meet the Government of Canada's commitment in the Greening Government Strategy to reduce greenhouse gas emissions from federal government buildings, vehicle fleets and other operations, aligning with broader vehicle electrification trends across Canada.

The Honourable Anita Anand, Minister of Public Services and Procurement, announced the Government of Canada has launched Requests for Proposal to buy new clean electricity in the province of Alberta, which is moving ahead with the retirement of coal power to clean its grid, to power federal operations there.

As well, Canada will purchase Renewable Energy Certificates (REC) from new clean energy generation in Canada. This will enable Canada to attribute its energy consumption as clean in regions where new clean renewable sources are not yet available. The Government of Canada is excited about this opportunity to stimulate net new Canadian clean electricity generation through the procurement of RECs and complementary power purchase agreements that secure long-term supply for federal demand.

Together, these contracts will help to ensure Canada is reducing its greenhouse gas footprint by approximately 133 kilotonnes or 56% of total real property emissions in Alberta. Additionally, the contracts will displace approximately 41 kilotonnes of greenhouse gas emissions from electricity use in the rest of Canada, supporting progress toward 2035 clean electricity goals even as challenges remain.

Through these open, fair and transparent competitive procurement processes, PSPC will be a key purchaser of clean electricity and will support the growth of new clean electricity and renewable power infrastructure, such as recent turbine investments in Manitoba that expand capacity.

The Government of Canada's Clean Electricity Initiative plans to use 100% clean electricity by 2022, where available, in alignment with evolving net-zero electricity regulations that shape supply choices, to reduce greenhouse gas emissions and stimulate growth in clean renewable power infrastructure. PSPC has applied the goals of the Government of Canada's Clean Electricity Initiative to its specific requirement for net new clean electricity generation to power federal operations in Alberta.  

These procurements will support economic opportunities for Indigenous businesses by encouraging participation in the move towards clean energy, seen in provincial shifts toward clean power in Ontario that broaden markets. Each Request for Proposal incorporates mandatory requirements for Indigenous participation through equity holdings or set-asides under the Procurement Strategy for Aboriginal Business.

 

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CO2 output from making an electric car battery isn't equal to driving a gasoline car for 8 years

EV Battery Manufacturing Emissions debunk viral claims with lifecycle analysis, showing lithium-ion production CO2 depends on grid mix and is offset by zero tailpipe emissions and renewable-energy charging over typical vehicle miles.

 

Key Points

EV lithium-ion pack production varies by grid mix; ~1-2 years of driving, then offset by zero tailpipe emissions.

✅ Battery CO2 depends on electricity mix and factory efficiency.

✅ 75 kWh pack ~4.5-7.5 t CO2; not equal to 8 years of driving.

✅ Lifecycle analysis: EVs cut GHG vs gas, especially with renewables.

 

Electric vehicles are touted as an environmentally friendly alternative to gasoline powered cars, but one Facebook post claims that the benefits are overblown, despite fact-checks of charging math to the contrary, and the vehicles are much more harmful to the planet than people assume.

A cartoon posted to Facebook on April 29, amid signs the EV era is arriving in many markets, shows a car in one panel with "diesel" written on the side and the driver thinking "I feel so dirty." In another panel, a car has "electric" written on its side with the driver thinking "I feel so clean."

However, the electric vehicle is shown connected to what appears to be a factory that’s blowing dark smoke into the air.

Below the cartoon is a caption that claims "manufacturing the battery for one electric car produces the same amount of CO2 as running a petrol car for eight years."

This isn’t a new line of criticism against electric vehicles, and reflects ongoing opinion on the EV revolution in the media. Similar Facebook posts have taken aim at the carbon dioxide produced in the manufacturing of electric cars — specifically the batteries — to make the case that zero emissions vehicles aren’t necessarily clean.

Full electric vehicles require a large lithium-ion battery to store energy and power the motor that propels the car, according to Insider. The lithium-ion battery packs in an electric car are chemically similar to the ones found in cell phones and laptops.

Because they require a mix of metals that need to be extracted and refined, lithium-ion batteries take more energy to produce than the common lead-acid batteries used in gasoline cars to help start the engine.

How much CO2 is emitted in the production depends on where the lithium-ion battery is made — or specifically, how the electricity powering the factory is generated, and national electricity profiles such as Canada's 2019 mix help illustrate regional differences — according to Zeke Hausfather, a climate scientist and director of climate and energy at the Breakthrough Institute, an environmental research think tank.

Producing a 75 kilowatt-hour battery for a Tesla Model 3, considered on the larger end of batteries for electric vehicles, would result in the emission of 4,500 kilograms of CO2 if it was made at Tesla's battery factory in Nevada. That’s the emissions equivalent to driving a gas-powered sedan for 1.4 years, at a yearly average distance of 12,000 miles, Hausfather said.

If the battery were made in Asia, manufacturing it would produce 7,500 kg of carbon dioxide, or the equivalent of driving a gasoline-powered sedan for 2.4 years — but still nowhere near the eight years claimed in the Facebook post. Hausfather said the larger emission amount in Asia can be attributed to its "higher carbon electricity mix." The continent relies more on coal for energy production, while Tesla’s Nevada factory uses some solar energy. 

"More than half the emissions associated with manufacturing the battery are associated with electricity use," Hausfather said in an email to PolitiFact. "So, as the electricity grid decarbonizes, emissions associated with battery production will decline. The same is not true for sedan tailpipe emissions."

The Facebook post does not mention the electricity needs and CO2 impact of factories that build gasoline or diesel cars and their components. 

Another thing the Facebook post omits is that the CO2 emitted in the production of the battery can be offset over a short time in an electric car by the lack of tailpipe emissions when it’s in operation. 

The Union of Concerned Scientists found in a 2015 report that taking into account electricity sources for charging, which have become greener in all states since then, an electric vehicle ends up reducing greenhouse gas emissions by about 50% compared with a similar size gas-powered car.

A midsize vehicle completely negates the carbon dioxide its production emits by the time it travels 4,900 miles, according to the report. For full size cars, it takes 19,000 miles of driving.

The U.S. Energy Department’s Office of Energy Efficiency and Renewable Energy also looked at the life cycle of electric vehicles — which includes a car’s production, use and disposal — and concluded they produce less greenhouse gases and smog than gasoline-powered vehicles, a conclusion consistent with independent analyses from consumer and energy groups.

The agency also found drivers could further lower CO2 emissions by charging with power generated by a renewable energy source, and drivers can also save money in the long run with EV ownership. 

Our ruling
A cartoon shared on Facebook claims the carbon dioxide emitted from the production of one electric car battery is the equivalent to driving a gas-powered vehicle for eight years.

The production of lithium-ion batteries for electric cars emits a significant amount of carbon dioxide, but nowhere near the level claimed in the cartoon. The emissions from battery production are equivalent to driving a gasoline car for one or two years, depending on where it’s produced, and those emissions are effectively offset over time by the lack of tailpipe emissions when the car is on the road. 

We rate this claim Mostly False.    

 

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Ontario Making it Easier to Build Electric Vehicle Charging Stations

Ontario EV Charger Streamlining accelerates public charging connections with OEB-led standardized forms, firm timelines, and utility coordination, leveraging Ontario’s clean electricity grid to expand reliable infrastructure across urban, rural, and northern communities.

 

Key Points

An OEB-led, provincewide procedure that standardizes EV charger connections and accelerates public charging.

✅ Standardized forms, data, and responsibilities across 58 utilities

✅ Firm timelines for studies, approvals, and grid connection upgrades

✅ Supports rural, northern, highway, and community charging expansion

 

The Ontario government is making it easier to build and connect new public electric vehicle (EV) chargers to the province’s world-class clean electricity grid. Starting May 27, 2024, all local utilities will follow a streamlined process for EV charging connections that will make it easier to set up new charging stations and, as network progress to date shows, support the adoption of electric vehicles in Ontario.

“As the number of EV owners in Ontario continues to grow, our government is making it easier to put shovels in the ground to build the critical infrastructure needed for drivers to charge their vehicles where and when they need to,” said Todd Smith, Minister of Energy. “This is just another step we are taking to reduce red tape, increase EV adoption, and use our clean electricity supply to support the electrification of Ontario’s transportation sector.”

Today, each of Ontario’s 58 local electricity utilities have different procedures for connecting new public EV charging stations, with different timelines, information requirements and responsibilities for customers.

In response to Minister Smith’s Letter of Direction, which called on the Ontario Energy Board (OEB) to take steps to facilitate the efficient integration of EV’s into the provincial electricity system, including vehicle-to-building charging applications, the OEB issued provincewide, streamlined procedures that all local utilities must follow for installing and connecting new EV charging infrastructure. This new procedure includes the implementation of standardized forms, timelines, and information requirements which will make it easier for EV charging providers to deploy chargers in all regions of the province.

“Our government is paving the way to an electric future by building the EV charging infrastructure drivers need, where they need it,” said Prabmeet Sarkaria, Minister of Transportation. “By increasing the accessibility of public EV charging stations across the province, including for rural and northern communities, we are providing more sustainable and convenient travel options for drivers.”

“Having attracted over $28 billion in automotive investments in the last three years, our province is a leading jurisdiction in the global production and development of EVs,” said Vic Fedeli, Minister of Economic Development, Job Creation and Trade. “By making it easier to build public charging infrastructure, our government is supporting Ontario’s growing end-to-end EV supply chain and ensuring EV drivers can confidently and conveniently power their journeys.”

This initiative is part of the government’s larger plan to support the adoption of electric vehicles and make EV charging infrastructure more accessible, which includes:

  • The EV ChargeON program – a $91 million investment to support the installation of public EV chargers, including emerging V1G chargers to support grid-friendly deployment, outside of Ontario’s large urban centres, including at community hubs, Ontario’s highway rest areas, carpool parking lots, and Ontario Parks.
  • The new Ultra-Low Overnight price plan which allows customers who use more electricity at night, including those charging their EV, to save up to $90 per year by shifting demand to the ultra-low overnight rate period when provincewide electricity demand is lower and to participate in programs that let them sell electricity back to the grid when appropriate.
  • Making it more convenient for electric vehicle (EV) owners to travel the province with EV fast chargers now installed at all 20 renovated ONroute stations along the province’s busiest highways, the 400 and 401.

The initiative also builds on the government’s Driving Prosperity: The Future of Ontario’s Automotive Sector plan which aims to create a domestic EV battery ecosystem in the province, expand energy storage capacity, and position Ontario as a North American automotive innovation hub by working to support the continued transition to electric, low carbon, connected and autonomous vehicles.

 

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