This Thin-Film Turns Heat Waste From Electronics Into Electricity


printed circuit board

NFPA 70b Training - Electrical Maintenance

Our customized live online or in‑person group training can be delivered to your staff at your location.

  • Live Online
  • 12 hours Instructor-led
  • Group Training Available
Regular Price:
$599
Coupon Price:
$499
Reserve Your Seat Today

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.

 

Related News

Related News

World renewable power on course to shatter more records

Global Renewable Capacity Additions 2023 surge on policy momentum, high fossil prices, and energy security, with solar PV and wind leading growth as grids expand and manufacturing scales across China, Europe, India, and the US.

 

Key Points

Record solar PV and wind growth from policy and energy security, adding 440+ GW toward 4,500 GW total capacity in 2024.

✅ Solar PV to supply two-thirds of additions; rooftop demand rising.

✅ Wind rebounds ~70% as delayed projects complete in China, EU, US.

✅ Grid upgrades and better permitting, auctions key for 2024 growth.

 

Global additions of renewable power capacity are expected to jump by a third this year as growing policy momentum, higher fossil fuel prices and energy security concerns drive strong deployment of solar PV and wind power, building on a record year for renewables in 2016, according to the latest update from the International Energy Agency.

The growth is set to continue next year with the world’s total renewable electricity capacity rising to 4 500 gigawatts (GW), equal to the total power output of China and the United States combined, and in the United States wind power has surged in the electricity mix, says the IEA’s new Renewable Energy Market Update, which was published today.

Global renewable capacity additions are set to soar by 107 gigawatts (GW), the largest absolute increase ever, to more than 440 GW in 2023. The dynamic expansion is taking place across the world’s major markets. Renewables are at the forefront of Europe’s response to the energy crisis, accelerating their growth there. New policy measures are also helping drive significant increases in the United States, where solar and wind growth remains strong, and India over the next two years. China, meanwhile, is consolidating its leading position and is set to account for almost 55% of global additions of renewable power capacity in both 2023 and 2024.

“Solar and wind are leading the rapid expansion of the new global energy economy. This year, the world is set to add a record-breaking amount of renewables to electricity systems – more than the total power capacity of Germany and Spain combined,” said IEA Executive Director Fatih Birol. “The global energy crisis has shown renewables are critical for making energy supplies not just cleaner but also more secure and affordable – and governments are responding with efforts to deploy them faster. But achieving stronger growth means addressing some key challenges. Policies need to adapt to changing market conditions, and we need to upgrade and expand power grids to ensure we can take full advantage of solar and wind’s huge potential.”

Solar PV additions will account for two-thirds of this year’s increase in renewable power capacity and are expected to keep growing in 2024, according to the new report. The expansion of large-scale solar PV plants is being accompanied by the growth of smaller systems. Higher electricity prices are stimulating faster growth of rooftop solar PV, which is empowering consumers to slash their energy bills, and in the United States renewables' share is projected to approach one-fourth of electricity generation.

At the same time, manufacturing capacity for all solar PV production segments is expected to more than double to 1 000 GW by 2024, led by China's solar PV growth and increasing supply diversification in the United States, where wind, solar and battery projects dominate the 2023 pipeline, India and Europe. Based on those trends, the world will have enough solar PV manufacturing capacity in 2030 to comfortably meet the level of annual demand envisaged in the IEA’s Net Zero Emissions by 2050 Scenario.

Wind power additions are forecast to rebound sharply in 2023 growing by almost 70% year-on-year after a difficult couple of years in which growth was slugging, even as wind power still grew despite Covid-19 challenges. The faster growth is mainly due to the completion of projects that had been delayed by Covid-19 restrictions in China and by supply chain issues in Europe and the United States. However, further growth in 2024 will depend on whether governments can provide greater policy support to address challenges in terms of permitting and auction design. In contrast to solar PV, wind turbine supply chains are not growing fast enough to match accelerating demand over the medium-term. This is mainly due to rising commodity prices and supply chain challenges, which are reducing the profitability of manufacturers.

The forecast for renewable capacity additions in Europe has been revised upwards by 40% from before Russia’s invasion of Ukraine, which led many countries to boost solar and wind uptake to reduce their reliance on Russian natural gas. The growth is driven by high electricity prices that have made small-scale rooftop solar PV systems more financially attractive and by increased policy support in key European markets, especially in Germany, Italy and the Netherlands.

 

Related News

View more

Ottawa to release promised EV sales regulations

Canada ZEV Availability Standard sets EV sales targets and zero-emission mandates, using compliance credits, early credits, and charging infrastructure investments under CEPA to accelerate affordable ZEV supply and meet 2035 net-zero goals.

 

Key Points

A federal ZEV policy setting 2026-2035 sales targets, using tradable credits and infrastructure incentives under CEPA.

✅ Applies to automakers; compliance via tradable ZEV credits under CEPA.

✅ Targets: 20% by 2026, 60% by 2030, 100% by 2035.

✅ Early credits up to 10% for 2026; charging investments earn credits.

 

Canadian Automobile manufacturers are on the brink of significant changes as Ottawa prepares to introduce its long-awaited electric vehicle regulations. A reliable source within the government says final regulations are aimed at ensuring that all new passenger vehicles sold in Canada by 2035 are zero-emission vehicles, a goal some critics question through analyses of the 2035 EV mandate in Canada.

These regulations, known as the Electric Vehicle Availability Standard, are designed to encourage automakers to produce more affordable zero-emission vehicles to meet the increasing demand. One of the key concerns for Canada is the potential dominance of zero-emission vehicle supply by other countries, particularly the United States, where several states have already implemented sales targets for such vehicles, and new EPA emission limits are expected to boost EV sales nationwide as well.

It's important to note that these regulations will apply primarily to automakers, rather than dealerships. Under this legislation, manufacturers will be required to accumulate sufficient credits to demonstrate their compliance with the established targets.

Automakers will be able to earn credits based on their sales of low- and no-emissions vehicles. The number of credits earned will depend on how close these vehicles come to meeting a zero-emissions standard. Additionally, manufacturers could earn early credits, amounting to a maximum of 10 percent of their total compliance requirements for 2026, by introducing more electric vehicles to the market ahead of schedule, even amid recent EV shortages and wait times reported across Canada.

Automakers can also increase their credit balance by contributing to the development of electric vehicle charging infrastructure, recognizing that fossil fuels still powered part of Canada's grid in 2019 and that charging availability remains a key enabler. In cases where companies exceed or fall short of their compliance targets, they will have the option to buy or sell credits to other manufacturers or use previously accumulated credits.

Further details regarding these regulations, which will be enacted under the Canadian Environmental Protection Act, are set to be unveiled soon and will intersect with provincial approaches such as Quebec's, where experts have questioned the push for EV dominance as policies evolve.

These regulations will become effective starting with the model year 2026, and sales targets will progressively rise each year until 2035. The federal government's ambitious EV goals are to have 20 percent of all vehicles sold in Canada be zero-emission vehicles by 2026, with that figure increasing to 60 percent by 2030 and reaching 100 percent by 2035.

According to a government analysis conducted in 2022, the anticipated total cost to consumers for zero-emission vehicles and chargers over 25 years is estimated at $24.5 billion, though cost remains a primary barrier for many Canadians considering an EV. However, it is projected that Canadians will save approximately $33.9 billion in net energy costs over the same period. Please note that these estimates are part of a draft and may be subject to change upon the government's release of its final analysis.

In terms of environmental impact, these regulations are expected to prevent the release of an estimated 430 million tonnes of greenhouse gas emissions, according to regulatory analysis. Environmental Defence, a Canadian environmental think-tank, has estimated that the policy would also result in a substantial reduction in gasoline consumption, equivalent to filling approximately 73,000 Olympic-sized swimming pools with gasoline.

Nate Wallace, the program manager for clean transportation at Environmental Defence, emphasized the significance of these regulations, stating, "2035 really needs to be the last year that we are selling gasoline cars in Canada brand new if we're going to have any chance of actually, by 2050, reaching net-zero carbon emissions."

 

Related News

View more

NREL’s Electric Vehicle Infrastructure Projection Tool Helps Utilities, Agencies, and Researchers Predict Hour-by-Hour Impact of Charging on the Grid

EVI-Pro Lite EV Load Forecasting helps utilities model EV charging infrastructure, grid load shapes, and resilient energy systems, factoring home, workplace, and public charging behavior to inform planning, capacity upgrades, and flexible demand strategies.

 

Key Points

A NREL tool projecting EV charging demand and load shapes to help utilities plan the grid and right-size infrastructure.

✅ Visualizes weekday/weekend EV load by charger type.

✅ Tests home, workplace, and public charging access scenarios.

✅ Supports utility planning, demand flexibility, and capacity upgrades.

 

As electric vehicles (EVs) continue to grow in popularity, utilities and community planners are increasingly focused on building resilient energy systems that can support the added electric load from EV charging, including a possible EV-driven demand increase across the grid.

But forecasting the best ways to adapt to increased EV charging can be a difficult task as EV adoption will challenge state power grids in diverse ways. Planners need to consider when consumers charge, how fast they charge, and where they charge, among other factors.

To support that effort, researchers at the National Renewable Energy Laboratory (NREL) have expanded the Electric Vehicle Infrastructure Projection (EVI-Pro) Lite tool with more analytic capabilities. EVI-Pro Lite is a simplified version of EVI-Pro, the more complex, original version of the tool developed by NREL and the California Energy Commission to inform detailed infrastructure requirements to support a growing EV fleet in California, where EVs bolster grid stability through coordinated planning.

EVI-Pro Lite’s estimated weekday electric load by charger type for El Paso, Texas, assuming a fleet of 10,000 plug-in electric vehicles, an average of 35 daily miles traveled, and 50% access to home charging, among other variables, as well as potential roles for vehicle-to-grid power in future scenarios. The order of the legend items matches the order of the series stacked in the chart.

Previously, the tool was limited to letting users estimate how many chargers and what kind of chargers a city, region, or state may need to support an influx of EVs. In the added online application, those same users can take it a step further to predict how that added EV charging will impact electricity demand, or load shapes, in their area at any given time and inform grid coordination for EV flexibility strategies.

“EV charging is going to look different across the country, depending on the prevalence of EVs, access to home charging, and the kind of chargers most used,” said Eric Wood, an NREL researcher who led model development. “Our expansion gives stakeholders—especially small- to medium-size electric utilities and co-ops—an easy way to analyze key factors for developing a flexible energy strategy that can respond to what’s happening on the ground.”

Tools to forecast EV loads have existed for some time, but Wood said that EVI-Pro Lite appeals to a wider audience, including planners tracking EVs' impact on utilities in many markets. The tool is a user-friendly, free online application that displays a clear graphic of daily projected electric loads from EV charging for regions across the country.

After selecting a U.S. metropolitan area and entering the number of EVs in the light-duty fleet, users can change a range of variables to see how they affect electricity demand on a typical weekday or weekend. Reducing access to home charging by half, for example, results in higher electric loads earlier in the day, although energy storage and mobile charging can help moderate peaks in some cases. That is because under such a scenario, EV owners might rely more on public or workplace charging instead of plugging in at home later in the evening or at night.

“Our goal with the lite version of EVI-Pro is to make estimating loads across thousands of scenarios fast and intuitive,” Wood said. “And if utilities or stakeholders want to take that analysis even deeper, our team at NREL can fill that gap through partnership agreements, too. The full version of EVI-Pro can be tailored to develop detailed studies for individual planners, agencies, or utilities.”

 

Related News

View more

Alectra is 'leading the charge' when it comes to electric vehicles

Alectra EV Leadership Award highlights Plug'n Drive and CEA recognition for AlectraDrive, GridExchange, smart charging, and clean energy innovation at the GRE&T Centre, advancing Canadian EV adoption, utility-led programs, rate design, and smart grid integration.

 

Key Points

An award recognizing Alectra Utilities for leading EV programs and clean energy innovation driven by its GRE&T Centre.

✅ Honors utility-led EV programs: AlectraDrive @Work, @Home, GridExchange

✅ Recognizes smart grid, charging, and innovative rate design

✅ Endorsed by Plug'n Drive and CEA; SEPA and Corporate Knights honors

 

Plug'n Drive and the Canadian Electricity Association (CEA) have awarded Alectra Utilities with the 'Tom Mitchell Electric Vehicle Utility Leadership Award' for its programs: AlectraDrive @Work, AlectraDrive @Home, GridExchange, which explores models where EV owners sell power back to the grid, Advantage Power Pricing and York University Electric Bus Simulation Study. All of these initiatives operate out of Alectra's Green Energy & Technology Centre (GRE&T Centre) and align with emerging vehicle-to-grid integration pilots nationwide.

"We appreciate receiving this award from Plug'n Drive and the CEA," said Brian Bentz, President and CEO, Alectra Inc. "The work that the GRE&T Centre does is an important part of our effort to help build a clean energy future and embrace new technologies like EV charging infrastructure and vehicle-to-grid pilots to help our customers."

The Electric Vehicle Awards, now in their sixth year, recognize Ca­nadian car dealerships and electricity utilities that are leaders in the sale and promotion of electric vehicles, from dedicated education efforts like the EV education centre in Toronto to consumer events such as the Quebec Electric Vehicle Show that raise awareness. Electricity utilities are recognized based on the merits and impacts of utility led EV programs and initiatives.

Earlier this year, Alectra was named Public Power Utility of the Year by the Smart Electric Power Alliance (SEPA) and ranked third in Corporate Knights 'Best 50 Corporate Citizens', as Canadian innovators deploy V1G EV chargers that support smart, grid-friendly charging.

 

Related News

View more

Michigan solar supporters make new push to eliminate rooftop solar caps

Michigan Distributed Energy Cap Repeal advances a bipartisan bill to boost rooftop solar and net metering, countering DTE and Consumers Energy claims, expanding energy freedom, jobs, and climate resilience across investor-owned utility territories.

 

Key Points

A Michigan bill to remove the 1% distributed energy cap, expanding rooftop solar, net metering, and clean energy jobs.

✅ Removes 1% distributed generation cap statewide

✅ Supports rooftop solar, net metering, and job growth

✅ Counters utility cost-shift claims with updated tariffs

 

A bipartisan group of Michigan lawmakers has introduced legislation to eliminate a 1% cap on distributed energy in the state’s investor-owned utility territories.

It’s the third time in recent years that such legislation has been introduced. Though utilities and their political allies have successfully blocked it to date, through tactics some critics say reflect utilities tilting the solar market by incumbents, advocates see an opportunity with a change in state Republican caucus leadership and Michigan’s burgeoning solar industry approaching the cap in some utility territories.

The bill also has support from a broad swath of legislators for reasons having to do with job creation, energy freedom and the environment, amid broader debates over states' push for renewables and affordability. Already the bill has received multiple hearings, even as DTE Energy and Consumers Energy, Michigan’s largest private utilities, are ramping up attacks in an effort to block the bill. 

“It’s going to be vehemently opposed by the utilities but there are only benefits to this if you are anybody but DTE,” said Democratic state Rep. Yousef Rabhi, who cosigned HB 4236 and has helped draft language in previous bills. “If we remove the cap, then we’re putting the public’s interest first, and we’re putting DTE’s interest first if we keep the cap in place.” 

The Michigan Legislature enacted the cap as part of a sweeping 2016 energy bill that clean energy advocates say included a number of provisions that have kneecapped the small-scale distributed energy industry, particularly home solar. The law caps distributed energy production at 1% of a utility’s average in-state peak load for the past five years. 

Republicans have controlled the Legislature and committees since the law was enacted, amid parallel moves such as the Wyoming clean energy bill in another state, and previous attempts to cut the language haven’t received House committee hearings. However, former Republican House leader Lee Chatfield has been replaced, and already the new bill, introduced by Republican state Rep. Gregory Markkanen, the energy committee’s vice chair, has had two hearings. 

Previous attempts to cut the language were also a part of a larger package of bills, and this time around the bill is a standalone. The legislation is also moving as Consumers and Upper Peninsula Power Co. have voluntarily doubled their cap to two percent, which advocates say highlights the need to repeal the cap . 

Rabhi said there’s bipartisan support because many conservatives and progressives view it as an infringement on customers’ energy freedom since the cap will eventually effectively prohibit new distributed energy generation. Legislators say the existing law kills jobs because it severely limits the clean energy industry’s growth, and Rabhi said he’s also strongly motivated by increasing renewable energy production to address climate change. 

In February, Michigan Public Service Commission Chairman Dan Scripps testified to the House committee, with observers also pointing to FERC action on aggregated DERs as relevant context, that the commission is “supportive in taking steps to ensure solar developers in Michigan are able to continue operating and thus support in concept the idea of lifting or eliminating the cap” in order to protect the home solar industry. 

The state’s solar industry has long criticized the cap, and removing it is a “no brainer,” said Dave Strenski, executive director of Solar Ypsi, which promotes rooftop solar in Ypsilanti. 

“If they have a cap and we reach that cap, then rooftop solar is shut down in Michigan,” he said. “The utilities don’t mind solar as long as they own it, and that’s what it boils down to.”  

The state’s utilities see the situation differently. Spokespeople for DTE and Consumers told the Energy News Network that lifting the cap would shift the cost burden of maintaining their territory-wide infrastructure from all customers to low income customers who can’t afford to install solar panels, often invoking reliability examples such as California's reliance on fossil generation to justify caution.

The bill “doesn’t address the subsidy certain customers are paid at the expense of those who cannot afford to put solar panels on their homes,” said Katie Carey, Consumers Energy’s spokesperson. 

However, clean energy advocates argue that studies have found that to be untrue. And even if it were true, Rabhi said, the utilities told lawmakers in 2016 that a new inflow/outflow tariff that the companies successfully pushed for to replace net metering dramatically reduced compensation for home solar users and would address that inequality. 

“DTE’s and Consumers’ own argument is that by making that change, distributed generation is no longer a ‘burden’ on low income customers, so now we have inflow/outflow and the problem should be solved,” Rabhi said. 

He added that claims that DTE and Consumers are looking out for low-income customers are disingenuous because they have repeatedly fought larger allowances for programs that help those customers, and refuse to “dip into their massive corporate profits and make sure poor people don’t have to pay as much for electricity.”

“I don’t want to hear a sob story from DTE about how putting solar panels on the house is going to hurt poor people,” he said. “That is entirely the definition of hypocrisy — that’s the utilities using poor people as a pawn and that’s why people are sick of these corporations.” 

The companies have already begun their public relations attack designed to help thwart the bill. DTE and Consumers spread money generously among Republicans and Democrats in the Legislature each cycle, and the two companies’ dark money nonprofits launched a round of ads targeting Democratic lawmakers, reflecting the broader solar wars playing out nationally. Several sit on the House Energy Committee, which must approve the bill before it can go in front of the full Legislature. 

The DTE-backed Alliance For Michigan Power and Consumers Energy-funded Citizens Energizing Michigan’s Economy have purchased dozens of Facebook ads alluding to action by the legislators, though there hasn’t been a vote. 

Facebook ads aren’t uncommon as they get “bang for their buck,” said Matt Kasper, research director with utility industry watchdog Energy And Policy Institute. Already hundreds of thousands of people have potentially viewed the ads and the groups have only spent thousands of dollars. The ads are likely designed to get Facebook users to interact with the legislators on the issue, Kasper said, even if there’s little information in the ad, and the info in the ad that does exist is highly misleading.

DTE and Consumers spokespersons declined to comment on the spending and directed questions to the dark money nonprofits. No one there could be reached for comment.

 

Related News

View more

Ontario to Reintroduce Renewable Energy Projects 5 Years After Cancellations

Ontario Renewable Energy Procurement 2024 will see the IESO secure wind, solar, and hydro power to meet rising electricity demand, support transit electrification, bolster grid reliability, and serve manufacturing growth across the province.

 

Key Points

A provincial IESO initiative to add 2,000 MW of clean power and plan 3,000 MW more to meet rising demand.

✅ IESO to procure 2,000 MW from wind, solar, hydro

✅ Exploring 3,000 MW via upgrades and expansions

✅ Demand growth ~2% yearly; electrification and industry

 

After the Ford government terminated renewable energy contracts five years ago, despite warnings about wind project cancellation costs that year, Ontario's electricity operator, the Independent Electricity System Operator (IESO), is now planning to once again incorporate wind and solar initiatives to address the province's increasing power demands.

The IESO, responsible for managing the provincial power supply, is set to secure 2,000 megawatts of electricity from clean sources, which include wind, solar, and hydro power, as wind power competitiveness increases across Canada. Additionally, the IESO is exploring the possibilities of reacquiring, upgrading, or expanding existing facilities to generate an additional 3,000 MW of electricity in the future.

These new power procurement efforts in Ontario aim to meet the rising energy demand driven by transit electrification and large-scale manufacturing projects, even as national renewable growth projections were scaled back after Ontario scrapped its clean energy program, which are expected to exert greater pressure on the provincial grid.

The IESO projects a consistent growth in demand of approximately two percent per year over the next two decades. This growth has prompted the Ford government, amid debate over Ontario's electricity future in the province, to take proactive measures to prevent potential blackouts or disruptions for both residential and commercial consumers.

This renewed commitment to renewable energy represents a significant policy shift for Premier Doug Ford, reflecting his new stance on wind power over time, who had previously voiced strong opposition to wind turbines and pledged to dismantle all windmills in the province. In 2018, shortly after taking office, the government terminated 750 renewable energy contracts that had been signed by the previous Liberal government, incurring fees of $230 million for taxpayers.

At the time, the government cited reasons such as surplus electricity supply and increased costs for ratepayers as grounds for contract cancellations. Premier Ford expressed pride in the decision, echoing a proud of cancelling contracts stance, claiming that it saved taxpayers $790 million and eliminated what he viewed as detrimental wind turbines that had negatively impacted the province's energy landscape for 15 years.

The Ontario government's new wind and solar energy procurement initiatives are scheduled to commence in 2024, following a court ruling on a Cornwall wind farm that spotlighted cancellation decisions.

 

Related News

View more

Sign Up for Electricity Forum’s Newsletter

Stay informed with our FREE Newsletter — get the latest news, breakthrough technologies, and expert insights, delivered straight to your inbox.

Electricity Today T&D Magazine Subscribe for FREE

Stay informed with the latest T&D policies and technologies.
  • Timely insights from industry experts
  • Practical solutions T&D engineers
  • Free access to every issue

Download the 2025 Electrical Training Catalog

Explore 50+ live, expert-led electrical training courses –

  • Interactive
  • Flexible
  • CEU-cerified