Aboitiz receives another award for financing for its Tiwi and Makban geothermal plant

DOE Battery Workforce Strategy advances lithium battery manufacturing with DOE, DOL, and AFL-CIO partnerships, pilot training programs, EV supply chain skills, and industry-labor credentials to strengthen clean energy jobs and domestic competitiveness.

Key Points

An initiative to fund pilot training and labor-industry partnerships to scale domestic lithium battery manufacturing.

✅ $5M for up to five pilot training programs.

✅ Builds industry-labor credentials across the battery supply chain.

✅ Targets EV manufacturing, recycling, and materials refining.

The U.S. Department of Energy (DOE), in coordination with the U.S. Department of Labor and the AFL-CIO, today announced the launch of a national workforce development strategy for lithium-battery manufacturing. As part of a $5 million investment, DOE will support up to five pilot training programs in energy and automotive communities and advance workforce partnerships between industry and labor for the domestic lithium battery supply chain. Lithium batteries power everything from electric vehicles, where U.S. automakers' battery strategies are rapidly evolving, to consumer electronics and are a critical component of President Biden’s whole-of-government decarbonization strategy. This workforce initiative will support the nation’s global competitiveness within battery manufacturing while strengthening the domestic economy and clean energy supply chains. 

“American leadership in the global battery supply chain, as the U.S. works with allies on EV metals to strengthen access, will be based not only on our innovative edge, but also on our skilled workforce of engineers, designers, scientists, and production workers,” said U.S. Secretary of Energy Jennifer M. Granholm, “President Biden has a vision for achieving net zero emissions while creating millions of good paying, union jobs — and DOE’s battery partnerships with labor and industry are key to making that vision a reality.” 

“President Biden has made the creation of good union jobs a cornerstone of his climate strategy,” said AFL-CIO President Liz Shuler. “We applaud DOE for being proactive in pulling labor and management together as the domestic battery industry is being established, and as Canada accelerates EV assembly nearby, we look forward to working with DOE and DOL to develop high-road training standards for the entire battery supply chain.” 

“I am glad to see the Department of Energy collaborating with our industry partners to invest in the next generation of our clean energy workforce,” said U.S. Senator Joe Manchin (D-WV), Chairman of the Senate Energy and Natural Resources Committee. “While I remain concerned about our dependence on China and other foreign countries for key parts of the lithium-ion battery supply chain, and recent lithium supply risks highlight the urgency, engaging our strong and capable workforce to manufacture batteries domestically is a critical step toward reducing our reliance on other countries and ensuring we are able to maintain our energy security. I look forward to seeing this initiative grow, and we will continue to work closely together to ensure we can onshore the rest of the battery supply chain.” 

The pilot training programs will bring together manufacturing companies, organized labor, and training providers to lay the foundation for the development of a broad national workforce strategy. The pilots will support industry-labor cooperation, as major North American projects like the B.C. battery plant advance, and will provide sites for job task analyses and documenting worker competencies. Insights gained will support the development of national industry-recognized credentials and inform the development of broader training programs to support the overall battery supply chain. 

This initiative comes as part of suite of announcements from President Biden’s Interagency Working Group (IWG) on Coal and Power Plant Communities and Economic Revitalization—a partnership among the White House and nearly a dozen federal agencies committed to pursuing near- and long-term actions to support coal, oil and gas, and power plant communities as the nation transitions to a clean energy economy. 

This announcement follows DOE’s recent release of two Notices of Intent authorized by the Bipartisan Infrastructure Law to provide $3 billion to support projects that bolster domestic battery manufacturing and battery recycling for a circular economy efforts nationwide. The funding, which will be made available in the coming months, will support battery-materials refining, which will bolster domestic refining capacity of minerals such as lithium, as well as production plants, battery cell and pack manufacturing facilities, and recycling facilities. 

It also builds on progress the Biden-Harris Administration and DOE have driven to secure a sustainable, reliable domestic supply of critical minerals and materials necessary for clean energy supply chains, including lithium, with emerging sources like Alberta's lithium-rich oil fields underscoring regional potential. This includes $44 million in funding through the DOE Mining Innovations for Negative Emissions Resource Recovery (MINER) program to fund the technology research that increases the mineral yield while decreasing the required energy, and subsequent emissions, to mine and extract critical minerals such as lithium, copper, nickel, and cobalt. 

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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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Oneida Energy Storage Project, a 250 MW lithium-ion battery in Haldimand County, enhances Ontario's clean energy capacity, grid reliability, and peak demand management, developed with Six Nations partners and private-public collaboration.

Key Points

A 250 MW lithium-ion battery in Ontario storing power to stabilize the grid and deliver clean electricity.

✅ 250 MW lithium-ion grid-scale battery in Haldimand County

✅ Developed with Six Nations, Northland Power, NRStor, Aecon

✅ Enhances grid reliability, peak shaving, emissions reduction

The Ontario government announced it is working to build Canada's largest electricity battery storage project in Haldimand County, part of Ontario's push into energy storage amid a looming supply crunch. Ontario Premier Doug Ford and Deputy Prime Minister Chrystia Freeland made the announcement in Ohsweken, Ont.

The 250-megawatt Oneida Energy storage project is being developed in partnership with the Six Nations of the Grand River Development Corporation, Northland Power, NRStor and Aecon Group.

The Ontario government announced on Friday it is working to build Canada's largest electricity battery storage project in Haldimand County.

On Friday, Ontario Premier Doug Ford and Deputy Prime Minister Chrystia Freeland made the announcement in Ohsweken, Ont.

The 250-megawatt Oneida Energy storage project is being developed in partnership with the Six Nations of the Grand River Development Corporation, Northland Power, NRStor and Aecon Group.

“It will more than double the province's energy storage resources and provide enough electricity to power a city approximately the size of Oshawa,” said Ford, noting Ontario's growing battery storage expansion across the grid.

“We need to continue to find ways to keep our energy clean and green,” said Ford, including initiatives like the Hydrogen Innovation Fund to spur innovation.

The federal government said they are providing a further $50 million in funding, coinciding with national investments such as the B.C. battery plant to scale capacity.

The premier said the project will begin operating in 2025 and will more than double the amount of clean energy storage.

Officials with the Six Nations said they have invested in the project that will provide economic returns and 97 per cent of the construction workforce to build it.

"This project is an example of what is possible when private and public companies, multiple levels of government, and their agencies work alongside a progressive Indigenous partner in pursuit of innovative solutions,” said Matt Jamieson, President and CEO of Six nations of the Grand River Development Corporation. “As with all our development efforts, we have studied the project to ensure it aligns with our community values, we are confident the outcome will create ratepayer savings, and move us closer to a Net Zero future for our coming generations."

According to the province, it has directed the independent electricity system operator to enter into a 20-year contract for this project with a goal to grow the province's clean energy supply, alongside transmission efforts like the Lake Erie Connector to enhance reliability.

The province said the Oneida Energy storage project is expected to reduce emissions by between 2.2 to 4.1 million tonnes, the equivalent to taking up to 40,000 cars off the road.

The project will use large scale lithium batteries, with regional supply bolstered by the Niagara battery plant, to store surplus energy from the power grid then feed it back into the system when it’s needed.

“Power that is generated and it can’t be utilized, this system will help harness that, store it for a period of time, and it will maximize value for the rate payer,” said Jamieson.

Jamieson said he is proud that the Six Nations is a founding developer in the project.

The facility will not actually be in Six Nations. It will be near the community of Jarvis in Haldimand County.
For Six Nationals elected Chief Mark Hill, it’s a major win as Ontario's EV sector grows with the Oakville EV deal and related projects.

“We want to continue to be a driver. We want to show Canada that we can also be a part of green solution,” Hill said.

But Hill admitted the Six Nations Community remains deeply divided over a number of longstanding issues.

“We still have a lot of internal affairs within our own community that we have to deal with. I think it’s really time once and for all to come together and figure this out,” said Hill.

The traditional leadership said they were left out of the decision making.

“No voice of ours was even heard today in that building,” said Deyohowe:to, the chief of the Cayuga Snipe Clan.

According to the Cayuga Snipe Clan, consultation with the Haudenasauene council is required for this type of development but they said it didn't happen.

“We’ve never heard of this before. No one came to the community and said this was going to happen and for the community we are not going to let that happen,” said Deyohowe:to.

The Six Nations Development Corporation said it did reach out to the Haudenosaunee chiefs and sent multiple letters in 2021 inviting them to participate.

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Manitoba ZEV Roadblocks highlight EV charging station gaps, rural infrastructure limits, dealership supply shortages, and ZEV mandate timelines, pushing mode shift to transit, cycling, and walking while hampering zero-emission vehicle adoption across the province.

Key Points

EV charging gaps, rural access limits, and supply constraints slow Manitoba's progress toward ZEV targets.

✅ Sparse Level 3 fast chargers outside Winnipeg

✅ Rural infrastructure limits long-distance confidence

✅ Dealership supply lags; long pre-order wait times

The federal government’s push toward zero-emission vehicles (ZEVs), including forthcoming EV sales regulations, is hitting some roadblocks in Manitoba.

Earlier this year, Ottawa set a sales target to encourage Canadians to choose ZEVs. By 2026, their goal is to have ZEVs make up 20 per cent of new vehicle purchases. By 2035, they want all new vehicles sold to be ZEVs, a target that has sparked 2035 EV mandate debate among industry observers.

READ MORE: Ottawa sets 2026 target for mandating electric vehicle sales

Connie Blixhavn with the Manitoba Electric Vehicle Association (MEVA) doesn’t think Manitoba is on track.

“We’re not, not at all,” she said.

Blixhavn lives in Killarney, Man., and bought an electric vehicle last year. She plans her trips to Brandon and Winkler around the life of her car’s battery, but finds the charging infrastructure to be lacking and unreliable, a challenge echoed by Labrador's lagging infrastructure in Newfoundland and Labrador.

“Brandon is my closest place to get a level three charge, and when they’re not working, it limits where you can go,” she said.

Level three is the fastest type of EV charger, taking about 15-45 minutes to fully charge a vehicle’s batteries.

According to CAA, 68 of the province’s 94 EV charging stations are in Winnipeg. Blixhavn says it limits options for rural people to confidently adopt EVs, even as jurisdictions like the N.W.T. encourage EV adoption through targeted programs.

“I know we’re a big area, but they need to strategically plan where they put these so we all have access,” she said.

ZEVs are often not found on dealership lots – they have to be pre-ordered. One dealership employee told Global News demand far outweighs supply, amid EV shortages and wait times reported nationally, with some customers waiting one to two years for their new vehicle to arrive.

Mel Marginet with the Green Action Centre’s Sustainable Transporation Team is also wary of Manitoba’s ability to meet the 2026 goal, noting that even as experts question Quebec's EV push there are broader challenges. She believes the only way to come close is to change how much Manitobans use personal vehicles altogether.

“If we’re really concerned about the environment, we need to double and triple down on just reducing personal vehicle trips by and large,” she said.

Marginet points to transit, walking and cycling as ways to reduce reliance on driving.

“We depend on personal vehicles a lot in this province, and far more than we should have to,” she said. “My biggest worry is that we’ll take resources away from what we need to build to get people to use personal vehicles less.”

For Blixhavn, the lack of charging stations in her area has caused her to reduce her vehicle use. While she says she’s fine with the extra planning it takes to travel, she believes the lack of infrastructure is preventing Manitobans, especially those in rural areas, from catching up with other provinces, as Atlantic Canada EV interest lags the rest of the country, when it comes to choosing electric vehicles.

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Canada Net-Zero demands renewable energy deployment, leveraging hydropower to integrate wind, solar, and storage, scaling electrification, cutting oil and gas emissions, aligning policy, carbon pricing, and investment to deliver a clean grid by 2050.

Key Points

A national goal to cut emissions 40-45% by 2030 and reach economy-wide net-zero by 2050 through clean electrification.

✅ Hydropower balances intermittent wind and solar.

✅ Policy, carbon pricing, and investment accelerate deployment.

✅ Clean energy jobs surge as oil and gas decline.

As the UN climate talks draw near, Canada has enormous work left to do to reach its goals of reducing greenhouse gas emissions. Collectively, Canadians have to cut overall greenhouse-gas emissions by 40 to 45 per cent below 2005 levels by 2030 and achieve net-zero by 2050 across the economy.

And whereas countries like the U.K. have dramatically slashed their emissions levels, Canada's one of the few nations where emissions keep skyrocketing, and where fossil fuel extraction keeps increasing every year despite our climate targets.

Changes in national emissions and fossil fuel extraction since 1950, for G7 nations plus Norway and Australia
Graphic by Barry Saxifrage in Sep.15 article,Canada's climate solution? Keep increasing fossil fuels extraction.
Given its track record, and the IEA's finding that Canada will need more electricity to hit net-zero, how will Canada achieve its goal of getting to net-zero by 2050?

As Trudeau seeks to cement his political legacy, these are the MPs he’s considering for cabinet
By Andrew Perez | Opinion | October 25th 2021
In the upcoming online Conversations event on Thursday, 11 a.m. PT/2 p.m. ET, host and Canada's National Observer deputy managing editor David McKie will discuss how cleaning up Canada's electricity and renewable energy can put the country on track to hitting its targets with Clean Energy Canada executive director Merran Smith, Canadian Institute for Climate Choices senior economist Dale Beugin, and WaterPower Canada CEO Anne-Raphaëlle Audouin.

Getting to net-zero grid through renewable electricity
“If we wanted to be powered by 100 per cent renewable electricity, including proposals for a fully renewable electricity grid by 2030, Canada is one of the countries where this is actually possible,” said Audouin.

She says for that to happen, it would take a slate of clean energy providers working together to fill the gaps, rather than competing for market dominance.

“You couldn't power Canada just with wind and solar, even with batteries. That being said, renewables happen to work very well together ” she said. “Hydropower already makes up more than 90 per cent of Canada’s renewable generation and 60 per cent of the country’s total electricity needs are currently met thanks to this flexible, dispatchable, abundant source of baseload renewable electricity. It isn’t a stretch of the imagination to envision hydropower and wind and solar working increasingly together to clean up our grid. In fact, hydropower already backs up and allows intermittent renewable energies like wind and solar onto the grid.”

She noted that while hydropower alone won't be the solution, its long history and indisputable suite of attributes — hydroelectricity has been in Canada since the 1890s — will make it a key part of the clean energy transition required to replace coal, natural gas and oil, which still make up around 20 per cent of Canada's power sources.

Canada's vast access to water, wind, biomass, solar, geothermal, and ocean energy, and a federal government that has committed to climate goals, makes us well-positioned to lead the way to a net-zero future and eventually the electrification of our economy. So, what's holding the country back?

The new reality for renewables
According to Clean Energy Canada, it's possible to grow the clean energy sector, but only if businesses invest massively in renewables and governments give guidance and oversight informed by the implications of decarbonizing Canada's electricity grid research.

A recent modelling study from Clean Energy Canada and Navius Research exploring the energy picture here in Canada over the next decade shows our clean energy sector is expected to grow by about 50 per cent by 2030 to around 640,000 people. Already, the clean energy industry provides 430,500 jobs — more than the entire real estate sector — and that growth is expected to accelerate as our dependence on oil and gas decreases. In fact, clean energy jobs in Alberta are predicted to jump 164 per cent over the next decade.

Currently, provinces with the most hydropower generation are also the ones with the lowest electricity rates, reflecting that electricity has been a nationwide climate success in Canada. Wind and solar are now on par, or even more competitive, than natural gas, and that could have big implications for other major sectors of the economy. Grocery giant Loblaws (which owns brands including President's Choice, Joe Fresh, and Asian grocery chain T&T) deployed its fleet of fully electric delivery trucks in recent years, and Hydro-Québec just signed a $20-billion agreement to help power and decarbonize the state of New York over the next 25 years.

In The New Reality, Smith writes that many carbon-intensive industries, such as the mining sector, could also potentially benefit from the increased demand for certain natural resources — like lithium and nickel — as the world switches to electric vehicles and clean power.

“Oil and gas may have dominated Canada’s energy past, but it’s Canada’s clean energy sector that will define its new reality,” Smith emphasized.

Despite its vast potential to be one of the world's clean energy leaders, Canada has a long way to getting on the path to net zero. Even though the country is home to some of the world's leading cleantech companies, such as B.C.-based clean hydrogen fuel cell providers Ballard Power and Loop Energy and Nova Scotia-based carbon utilization company CarbonCure, the country continues to expand fossil fuel extraction to the point that emissions are projected to jump to around 1,500 MtCO2 worth by 2030.

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Thermoradiative Diode Power leverages infrared radiation and night-sky cooling to harvest waste heat. Using MCT (mercury cadmium telluride) detectors with photovoltaics, it extends renewable energy generation after sunset, exploiting radiative cooling and low-power density.

Key Points

Technology using MCT infrared diodes to turn radiative Earth-to-space heat loss into electricity, aiding solar at night.

✅ MCT diodes radiate to cold sky, generating tiny current at 20 C

✅ Complements photovoltaics by harvesting post-sunset infrared flux

✅ Potential up to one-tenth solar output with further efficiency gains

Conventional solar technology soaks up rays of incoming sunlight to bump out a voltage. Strange as it seems, some materials are capable of running in reverse, producing power as they radiate heat back into the cold night sky environment.

A team of engineers in Australia has now demonstrated the theory in action, using the kind of technology commonly found in night-vision goggles to generate power, while other research explores electricity from thin air concepts under ambient humidity.

So far, the prototype only generates a small amount of power, and is probably unlikely to become a competitive source of renewable power on its own – but coupled with existing photovoltaics technology and thermal energy into electricity approaches, it could harness the small amount of energy provided by solar cells cooling after a long, hot day's work.

"Photovoltaics, the direct conversion of sunlight into electricity, is an artificial process that humans have developed in order to convert the solar energy into power," says Phoebe Pearce, a physicist from the University of New South Wales.

"In that sense, the thermoradiative process is similar; we are diverting energy flowing in the infrared from a warm Earth into the cold Universe."

By setting atoms in any material jiggling with heat, you're forcing their electrons to generate low-energy ripples of electromagnetic radiation in the form of infrared light, a principle also explored with carbon nanotube energy harvesters in ambient conditions.

As lackluster as this electron-shimmy might be, it still has the potential to kick off a slow current of electricity. All that's needed is a one-way electron traffic signal called a diode.

Made of the right combination of elements, a diode can shuffle electrons down the street as it slowly loses its heat to a cooler environment.

In this case, the diode is made of mercury cadmium telluride (MCT). Already used in devices that detect infrared light, MCT's ability to absorb mid-and long-range infrared light and turn it into a current is well understood.

What hasn't been entirely clear is how this particular trick might be used efficiently as an actual power source.

Warmed to around 20 degrees Celsius (nearly 70 degrees Fahrenheit), one of the tested MCT photovoltaic detectors generated a power density of 2.26 milliwatts per square meter.

Granted, it's not exactly enough to boil a jug of water for your morning coffee. You'd probably need enough MCT panels to cover a few city blocks for that small task.

But that's not really the point, either, given it's still very early days in the field, and there's potential for the technology to develop significantly further in the future.

"Right now, the demonstration we have with the thermoradiative diode is relatively very low power. One of the challenges was actually detecting it," says the study's lead researcher, Ned Ekins-Daukes.

"But the theory says it is possible for this technology to ultimately produce about 1/10th of the power of a solar cell."

At those kinds of efficiencies, it might be worth the effort weaving MCT diodes into more typical photovoltaic networks alongside thin-film waste heat solutions so that they continue to top up batteries long after the Sun sets.

To be clear, the idea of using the planet's cooling as a source of low-energy radiation is one engineers have been entertaining for a while now. Different methods have seen different results, all with their own costs and benefits, with low-cost heat-to-electricity materials also advancing in parallel.

Yet by testing the limits of each and fine-tuning their abilities to soak up more of the infrared bandwidth, we can come up with a suite of technologies and thermoelectric materials capable of wringing every drop of power out of just about any kind of waste heat.

"Down the line, this technology could potentially harvest that energy and remove the need for batteries in certain devices – or help to recharge them," says Ekins-Daukes.

"That isn't something where conventional solar power would necessarily be a viable option."

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