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Electric Field-Induced Glass Softening reveals a Joule heating anomaly in silicate glass, where anode-side nanoscale alkali depletion drives ionic conduction, localized thermal runaway, melting, and evaporation, challenging homogeneity assumptions and refining materials processing models.

Key Points

An effect where electric fields lower glass softening temperature via nanoscale ionic migration and structural change.

✅ Anode-side alkali depletion creates extreme, localized heating

✅ Thermal runaway melts glass near the anode despite uniform bulk

✅ Findings refine Joule heating models and enable new glass processing

A team of scientists working with electrical currents and silicate glass have been left gobsmacked after the glass appeared to defy a basic physical law, in a field that also explores electricity-from-air devices for novel energy harvesting.

If you pass an electrical current through a material, the way that current generates heat can be described by Joule's first law. It's been observed time and time again, with the temperature always evenly distributed when the material is homogeneous (or uniform).

But not in this recent experiment. A section - and only a section - of silicate glass became so hot that it melted, and even evaporated. Moreover, it did so at a much lower temperature than the boiling point of the material.

The boiling point of pure silicate glass is 2,230 degrees Celsius (4,046 degrees Fahrenheit). The hottest temperature the researchers recorded in a homogeneous piece of silicate glass during the experiment was 1,868.7 degrees Celsius.

Say whaaaat.

"The calculations did not add up to explain what we were seeing as simply standard Joule heating," said engineer and materials scientist Himanshu Jain of Lehigh University.

"Even under very moderate conditions, we observed fumes of glass that would require thousands of degrees higher temperature than Joule's law could predict!"

Jain and his colleagues from materials science company Corning Incorporated were investigating a phenomenon they had described in a previous paper. In 2015, they reported that an electric field could reduce the temperature at which glass softens, by as much as a few hundred degrees, a line of inquiry that parallels work on low-cost heat-to-electricity materials in energy research. They called this "electric field-induced softening."

It was certainly a peculiar phenomenon, so they set up another experiment. They put pieces of glass in a furnace, and applied 100 to 200 volts in the form of both alternating and direct currents.

Next, a thin wisp of vapour emanated from the spot where the anode conveying the current contacted the glass.

"In our experiments, the glass became more than a thousand degrees Celsius hotter near the positive side than in the rest of the glass, which was very surprising considering that the glass was totally homogeneous to begin with," Jain said.

This seems to fly in the face of Joule's first law, so the team investigated more closely - and found that the glass wasn't remaining as homogeneous as it started out. The electric field changed the chemistry and the structure of the glass on nanoscale, in just a small section close to the anode.

This region heats faster than the rest of the glass, to the point of becoming a thermal runaway - where an increase in temperature further increases temperature in a blistering feedback loop.

As it turned out, that spot of structural change and dramatic heat resulted in a small area of glass reaching melting point while the rest of the material remained solid.

"Unlike electronically conducting metals and semiconductors, with time the heating of ionically conducting glass becomes extremely inhomogeneous with the formation of a nanoscale alkali-depletion region, such that the glass melts near the anode, even evaporates, while remaining solid elsewhere," the researchers wrote in their paper.

In other words, the material wasn't homogeneous any more, which means the glass heating experiment doesn't exactly change how we apply Joule's first law.

But it's an exciting result, since until now we didn't know a material could actually lose its homogeneity with the application of an electrical current, with possible implications for thin-film heat harvesters in electronics. (The thing is, no one had tried electrically heating glass to these extreme temperatures before.)

So the physical laws of the Universe are still okay, as a piece of glass hasn't broken them. But Joule's first law may need a bit of tweaking to take this effect into account, a reminder that unconventional energy concepts like nighttime solar cells also challenge our intuitions.

And, of course, it's another piece of understanding that could help us in other ways too, including advances in thermoelectric materials that turn waste heat into electricity.

"Besides demonstrating the need to qualify Joule's law," Jain said, "the results are critical to developing new technology for the fabrication and manufacturing of glass and ceramic materials."

The research has been published in Scientific Reports.

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Germany nuclear phase-out underscores a high-stakes energy transition, trading reactors for renewables, LNG imports, and grid resilience to secure supply, cut emissions, and navigate climate policy, public opinion shifts, and post-Ukraine supply shocks.

Key Points

Germany's nuclear phase-out retires reactors, shifting to renewables, LNG, and grid upgrades for low-carbon power.

✅ Last three reactors: Neckarwestheim, Isar 2, and Emsland closed

✅ Supply secured via LNG imports, renewables, and grid flexibility

✅ Policy accelerated post-Fukushima; debate renewed after Ukraine war

The German government is phasing out nuclear power despite the energy crisis. The country is pulling the plug on its last three reactors, betting it will succeed in its green transition without nuclear power.

On the banks of the Neckar River, not far from Stuttgart in south Germany, the white steam escaping from the nuclear power plant in Baden-Württemberg will soon be a memory.

The same applies further east for the Bavarian Isar 2 complex and the Emsland complex, at the other end of the country, not far from the Dutch border.

While many Western countries depend on nuclear power, Europe's largest economy is turning the page, even if a possible resurgence of nuclear energy is debated until the end.

Germany is implementing the decision to phase out nuclear power taken in 2002 and accelerated by Angela Merkel in 2011, after the Fukushima disaster.

Fukushima showed that "even in a high-tech country like Japan, the risks associated with nuclear energy cannot be controlled 100 per cent", the former chancellor justified at the time.

The announcement convinced public opinion in a country where the powerful anti-nuclear movement was initially fuelled by fears of a Cold War conflict, and then by accidents such as Chernobyl.

The invasion of Ukraine on 24 February 2022 brought everything into question. Deprived of Russian gas, the flow of which was essentially interrupted by Moscow, Germany found itself exposed to the worst possible scenarios, from the risk of its factories being shut down to the risk of being without heating in the middle of winter.

With just a few months to go before the initial deadline for closing the last three reactors on 31 December, the tide of public opinion began to turn, and talk of a U-turn on the nuclear phaseout grew louder. 

"With high energy prices and the burning issue of climate change, there were of course calls to extend the plants," says Jochen Winkler, mayor of Neckarwestheim, where the plant of the same name is in its final days.

Olaf Scholz's government, which the Green Party - the most hostile to nuclear power - is part of, finally decided to extend the operation of the reactors to secure the supply until 15 April.

"There might have been a new discussion if the winter had been more difficult if there had been power cuts and gas shortages nationwide. But we have had a winter without too many problems," thanks to the massive import of liquefied natural gas, notes Mr Winkler.

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EV Subsidies in Canada influence greenhouse-gas emissions based on electricity grid mix; in Ontario and Quebec they reduce pollution, while fossil-fuel grids blunt benefits. Compare costs per tonne with carbon tax and renewable energy policies.

Key Points

Government rebates for electric vehicles, whose emissions impact and cost-effectiveness depend on provincial grid mix.

✅ Impact varies by grid emissions; clean hydro-nuclear cuts CO2.

✅ MEI estimates up to $523 per tonne vs $50 carbon price.

✅ Best value: tax carbon; target renewables, efficiency, hybrids.

Bad ideas sometimes look better, and sell better, than good ones – as with the proclaimed electric-car revolution that policymakers tout today. Not always, or else Canada wouldn’t be the mostly well-run place that it is. But sometimes politicians embrace a less-than-best policy – because its attractive appearance may make it more likely to win the popularity contest, right now, even though it will fail in the long run.

The most seasoned political advisers know it. Pollsters too. Voters, in contrast, don’t know what they don’t know, which is why bad policy often triumphs. At first glance, the wrong sometimes looks like it must be right, while better and best give the appearance of being bad and worst.

This week, the Montreal Economic Institute put out a study on the costs and benefits of taxpayer subsidies for electric cars. They considered the logic of the huge amounts of money being offered to purchasers in the country’s two largest provinces. In Quebec, if you buy an electric vehicle, the government will give you up to $8,000; in Ontario, buying an electric car or truck entitles you to a cheque from the taxpayer of between $6,000 and $14,000. The subsidies are rich because the cars aren’t cheap.

Will putting more electric cars on the road lower greenhouse-gas emissions? Yes – in some provinces, where they can be better for the planet when the grid is clean. But it all depends on how a province generates electricity. In places like Alberta, Saskatchewan, Nova Scotia and Nunavut territory, where most electricity comes from burning fossil fuels, an electric car may actually generate more greenhouse gases than one running on traditional gasoline. The tailpipe of an electric vehicle may not have any emissions. But quite a lot of emissions may have been generated to produce the power that went to the socket that charged it.

A few years ago, University of Toronto engineering professor Christopher Kennedy estimated that electric cars are only less polluting than the gasoline vehicles they replace when the local electrical grid produces a good chunk of its power from renewable sources – thereby lowering emissions to less than roughly 600 tonnes of CO2 per gigawatt hour.

Unfortunately, the electricity-generating systems in lots of places – from India to China to many American states – are well above that threshold. In those jurisdictions, an electric car will be powered in whole or in large part by electricity created from the burning of a fossil fuel, such as coal. As a result, that car, though carrying the green monicker of “electric,” is likely to be more polluting than a less costly model with an internal combustion or hybrid engine.

The same goes for the Canadian juridictions mentioned above. Their electricity is dirtier, so operating an electric car there won’t be very green. Alberta, for example, is aiming to generate 30 per cent of its electricity from renewable sources by 2030 – which means that the other 70 per cent of its electricity will still come from fossil fuels. (Today, the figure is even higher.) An Albertan trading in a gasoline car for an electric vehicle is making a statement – just not the one he or she likely has in mind.

In Ontario and Quebec, however, most electricity is generated from non-polluting sources, even though Canada still produced 18% from fossil fuels in 2019 overall. Nearly all of Quebec’s power comes from hydro, and more than 90 per cent of Ontario’s electricity is from zero-emission generation, mainly hydro and nuclear. British Columbia, Manitoba and Newfoundland and Labrador also produce the bulk of their electricity from hydro. Electric cars in those provinces, powered as they are by mostly clean electricity, should reduce emissions, relative to gas-powered cars.

But here’s the rub: Electric cars are currently expensive, and, as a recent survey shows, consequently not all that popular. Ontario and Quebec introduced those big subsidies in an attempt to get people to buy them. Those subsidies will surely put more electric cars on the road and in the driveways of (mostly wealthy) people. It will be a very visible policy – hey, look at all those electrics on the highway and at the mall!

However, that result will be achieved at great cost. According to the MEI, for Ontario to reach its goal of electrics constituting 5 per cent of new vehicles sold, the province will have to dish out up to $8.6-billion in subsidies over the next 13 years.

And the environmental benefits achieved? Again, according to the MEI estimate, that huge sum will lower the province’s greenhouse-gas emissions by just 2.4 per cent. If the MEI’s estimate is right, that’s far too many bucks for far too small an environmental bang.

Here’s another way to look at it: How much does it cost to reduce greenhouse-gas emissions by other means? Well, B.C.’s current carbon tax is $30 a tonne, or a little less than 7 cents on a litre of gasoline. It has caused GHG emissions per unit of GDP to fall in small but meaningful ways, thanks to consumers and businesses making millions of little, unspectacular decisions to reduce their energy costs. The federal government wants all provinces to impose a cost equivalent to $50 a tonne – and every economic model says that extra cost will make a dent in greenhouse-gas emissions, though in ways that will not involve politicians getting to cut any ribbons or hold parades.

What’s the effective cost of Ontario’s subsidy for electric cars? The MEI pegs it at $523 per tonne. Yes, that subsidy will lower emissions. It just does so in what appears to be the most expensive and inefficient way possible, rather than the cheapest way, namely a simple, boring and mildly painful carbon tax.

Electric vehicles are an amazing technology. But they’ve also become a way of expressing something that’s come to be known as “virtue signalling.” A government that wants to look green sees logic in throwing money at such an obvious, on-brand symbol, or touting a 2035 EV mandate as evidence of ambition. But the result is an off-target policy – and a signal that is mostly noise.

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Australia Renewable Energy Transition: solar capacity growth, net-zero goals, rising electricity demand, coal reliance, EV adoption, grid decarbonization, heat waves, air conditioning loads, and policy incentives shaping clean power, efficiency, and emissions reduction.

Key Points

Australia targets net-zero by 2050 by scaling renewables, curbing demand, and phasing down coal and gas.

✅ Solar capacity up 200% since 2018, yet coal remains dominant.

✅ Transport leads energy use; EV uptake lags global average.

✅ Heat waves boost AC load, stressing grids and emissions goals.

A more than 200% increase in installed solar power generation capacity since 2018 helped Australia rank sixth globally in terms of solar capacity last year and emerge as one of the world's fastest-growing major renewable energy producers, aligning with forecasts that renewables to surpass coal in global power generation by 2025.

However, to realise its goal of becoming a net-zero carbon emitter by 2050, Australia must reverse the trajectory of its energy use, which remains on a rising path, even as Asia set to use half of electricity underscores regional demand growth, in contrast with several peers that have curbed energy use in recent years.

Australia's total electricity consumption has grown nearly 8% over the past decade, amid a global power demand surge that has exceeded pre-pandemic levels, compared with contractions over the same period of more than 7% in France, Germany and Japan, and a 14% drop in the United Kingdom, data from Ember shows.

Sustained growth in Australia's electricity demand has in turn meant that power producers must continue to heavily rely on coal for electricity generation on top of recent additions in supply of renewable energy sources, with low-emissions generation growth expected to cover most new demand.

Australia has sharply boosted clean energy capacity in recent years, but remains heavily reliant on coal & natural gas for electricity generation
To accomplish emissions reduction targets on time, Australia's energy use must decline while clean energy supplies climb further, as that would give power producers the scope to shut high-polluting fossil-powered energy generation systems ahead of the 2050 deadline.

DEMAND DRIVERS
Reducing overall electricity and energy use is a major challenge in all countries, where China's electricity appetite highlights shifting consumption patterns, but will be especially tough in Australia which is a relative laggard in terms of the electrification of transport systems and is prone to sustained heat waves that trigger heavy use of air conditioners.

The transport sector uses more energy than any other part of the Australian economy, including industry, and accounted for roughly 40% of total final energy use as of 2020, according to the International Energy Agency (IEA.)

Transport energy demand has also expanded more quickly than other sectors, growing by over 5% from 2010 to 2020 compared to industry's 1.3% growth over the same period.

Transport is Australia's main energy use sector, and oil products are the main source of energy type
To reduce energy use, and cut the country's fuel import bill which topped AUD $65 billion in 2022 alone, according to the Australian Bureau of Statistics, the Australian government is keen to electrify car fleets and is offering large incentives for electric vehicle purchases.

Even so, electric vehicles accounted for only 5.1% of total Australian car sales in 2022, according to the International Energy Agency (IEA).

That compares to 13% in New Zealand, 21% in the European Union, and a global average of 14%.

More incentives for EV purchases are expected, but any rapid adoption of EVs would only serve to increase overall electricity demand, and with surging electricity demand already straining power systems worldwide, place further pressure on power producers to increase electricity supplies.

Heating and cooling for homes and businesses is another major energy demand driver in Australia, and accounts for roughly 40% of total electricity use in the country.

Australia is exposed to harsh weather conditions, especially heat waves which are expected to increase in frequency, intensity and duration over the coming decades due to climate change, according to the New South Wales government.

To cope, Australians are expected to resort to increased use of air conditioners during the hottest times of the year, and with reduced power reserves flagged by the market operator, adding yet more strain to electricity systems.

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U.S. Utility-Scale Solar Delays driven by the coronavirus pandemic threaten construction timelines, supply chains, and financing, with interconnection and commissioning setbacks, module sourcing risks in Southeast Asia, and tax credit deadline pressures impacting project delivery.

Key Points

Setbacks to large U.S. solar builds from COVID-19 impacting construction, supply, financing, and permitting.

✅ Construction, interconnection, commissioning site visits delayed

✅ Supply chain risks for modules from Southeast Asia

✅ Tax credit deadline extensions sought by developers

About 5 gigawatts (GW) of big U.S. solar energy projects, enough to power nearly 1 million homes, could suffer delays this year if construction is halted for months due to the coronavirus pandemic, as the Covid-19 crisis hits renewables across the sector, according to a report published on Wednesday.

The forecast, a worst-case scenario laid out in an analysis by energy research firm Wood Mackenzie, would amount to about a third of the utility-scale solar capacity expected to be installed in the United States this year, even as US solar and wind growth continues under favorable plans.

The report comes two weeks after the head of the top U.S. solar trade group called the coronavirus pandemic (as solar jobs decline nationwide) "a crisis here" for the industry. Solar and wind companies are pleading with Congress to extend deadlines for projects to qualify for sunsetting federal tax credits.

Even the firm’s best-case scenario would result in substantial delays, mirroring concerns that wind investments at risk across the industry. With up to four weeks of disruption, the outbreak will push out 2 GW of projects, or enough to power about 380,000 homes. Before factoring in the impact of the coronavirus, Wood Mackenzie had forecast 14.7 GW of utility-scale solar projects would be installed this year.

In its report, the firm said the projects are unlikely to be canceled outright. Rather, they will be pushed into the second half of 2020 or 2021. The analysis assumes that virus-related disruptions subside by the end of the third quarter.

Mid-stage projects that still have to secure financing and receive supplies are at the highest risk, Wood Mackenzie analyst Colin Smith said in an interview, adding that it was too soon to know whether the pandemic would end up altering long-term electricity demand and therefore utility procurement plans, where policy shifts such as an ITC extension could reshape priorities.

Currently, restricted travel is the most likely cause of project delays, the report said. Developers expect delays in physical site visits for interconnection and commissioning, and workers have had difficulty reaching remote construction sites.

For earlier-stage projects, municipal offices that process permits are closed and in-person meetings between developers and landowners or local officials have slowed down.

Most solar construction is proceeding despite stay at home orders in many states because it is considered critical infrastructure, and long-term proposals like a tenfold increase in solar could reshape the outlook, the report said, adding that “that could change with time.”

Risks to supplies of solar modules include potential manufacturing shutdowns in key producing nations in Southeast Asia such as Malaysia, Vietnam and Thailand. Thus far, solar module production has been identified as an essential business and has been allowed to continue.

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Alberta-BC Pipeline Dispute centers on Trans Mountain expansion, diluted bitumen shipments, federal approval, spill response capacity, and electricity trade, as Alberta suspends power talks and Ottawa insists the Kinder Morgan project proceeds in national interest.

Key Points

Dispute over Trans Mountain expansion, bitumen limits, and jurisdiction between Alberta, B.C., and Canada.

✅ Alberta suspends BC electricity talks as leverage

✅ Ottawa affirms federal approval and spill response

✅ BC plans advisory panel on diluted bitumen risks

Alberta Premier Rachel Notley says her government is suspending talks with British Columbia on the purchase of electricity from the western province.

It’s the first step in Alberta’s fight against the B.C. government’s proposal to obstruct the Kinder Morgan oil pipeline expansion project by banning increased shipments of diluted bitumen to the province’s coast.

Up to $500 million annually for B.C.’s coffers from electricity exports hangs in the balance, Notley said.

“We’re prepared to do what it takes to get this pipeline built — whatever it takes,” she told a news conference Thursday after speaking with Prime Minister Justin Trudeau on the phone.

Notley said she told Trudeau, who’s in Edmonton for a town-hall meeting, that the federal government needs to act decisively to end the dispute.

Speaking on Edmonton talk radio station CHED earlier in the day, Trudeau said the pipeline expansion is in the national interest and will go ahead, even as the federal government undertakes a study on electrification across sectors.

“That pipeline is going to get built,” Trudeau said. “We will stand by our decision. We will ensure that the Kinder Morgan pipeline gets built.”

B.C.’s environment minister has said his minority government plans to ban increased shipments until it can determine that shippers are prepared and able to properly clean up a spill, and, separately, has implemented an electricity rate freeze affecting consumers. He said he will establish an independent scientific advisory panel to study the issue.

The move infuriated Notley, who has accused B.C. of trying to change the rules after the federal government gave the project the green light. B.C. has the right to regulate how any spills would be cleaned up, but can’t dictate what flows through pipelines, she said.

Trudeau said Canada needs to get Alberta’s oil safely to markets other than the U.S. energy market today. He said the federal government did the research and has spent billions on spill response.

“The Kinder Morgan pipeline is not a danger to the B.C. coast,” he said.

Notley said she thanked Trudeau for his assurance that the project will go ahead, but the federal government has to do more to ensure the pipeline’s expansion.

“This is not an Alberta-B.C. issue. This is a Canada-B.C. issue,” she said. “This kind of uncertainty is bad for investment and bad for working people

“Enough is enough. We need to get these things built.”

B.C. Premier John Horgan said his government consulted Alberta and Ottawa about his province’s intentions, noting that Columbia River Treaty talks also shape regional electricity policy.

“I don’t see what the problem is,” Horgan said Thursday at a school opening north of Kelowna, B.C. “It’s within our jurisdiction to put in place regulations to protect the public interest.

“That’s what we are doing.”

He downplayed any possibility of court action or sanctions by Alberta.

“There’s nothing to take to court,” Horgan said. “We are consulting with the people of B.C. It’s way too premature to talk about those sorts of issues.

“Sabre-rattling doesn’t get you very far.”

Speaking in Ottawa, Natural Resources Minister Jim Carr wouldn’t say what Canada might do if British Columbia implements its regulation.

“That’s speculative,” said Carr.

He noted at this point, B.C. has just pledged to consult. He said the federal government heard from thousands of people before the pipeline was approved.

“That’s what they have announced — an intention to consult. We have already consulted.”

B.C.’s proposal creates more uncertainty for Kinder Morgan’s already-delayed Trans Mountain expansion project that would nearly triple the capacity of its pipeline system to 890,000 barrels a day.

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