Scientists make ultrathin superconducting films

By Reuters


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U.S. researchers have developed ultrathin films that when sandwiched together form a superconductor, an advance that could lead to a new class of fast, power-saving electronics.

The films can be used at relatively high temperatures for superconductors, making them easier to handle and produce, they said.

"What we have done is we have put together two materials, neither of which is a superconductor, and we found their interface — where they touch — is superconducting," said physicist Ivan Bozovic of the U.S. Department of Energy's Brookhaven National Laboratory, in a telephone interview.

"This superconducting layer is extremely thin. It is thinner than 1 nanometer, which is 1 billionth of a meter," added Bozovic, whose findings appear in the journal Nature.

"It opens vistas for further progress, including using these techniques to significantly enhance superconducting properties in other known or new superconductors."

Like their name implies, superconductors are useful because they are extremely efficient at conducting electricity.

If cooled to the material's critical operating temperature, they have no resistance to the flow of electrical current, unlike ordinary electrical wires, which can eventually overheat.

The superconductors used in a magnetic resonance imaging or MRI machine, for example, must be cooled with liquid helium to keep them at 4 on the Kelvin scale, or near absolute zero minus 452.47 degrees Fahrenheit (minus 269.15 degrees Celsius).

The superconducting film developed by scientists at Brookhaven, however, work at temperatures of 50 Kelvin or minus 369.67 degrees Fahrenheit (minus 223.15 degrees Celsius).

"The practicality of superconductivity depends in some sense on the refrigeration you use to cool it down," Bozovic said.

At 50 Kelvin, the superconducting film is close to the point where it could be cooled inexpensively by liquid nitrogen, which cools to 77 Kelvin or minus 321.07 degrees Fahrenheit (minus 196.15 degrees Celsius).

"It brings us one step closer to producing mass-scale superconducting electronics," he said.

He said the ultimate goal is to develop superconducting materials that could be used at room temperature. And he thinks further study with these new ultrathin films may lend some clues on how to get there, a problem he calls "one of the most important open problems in condensed matter physics."

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America’s Electricity is Safe From the Coronavirus—for Now

US Grid Pandemic Response coordinates control rooms, grid operators, and critical infrastructure, leveraging hydroelectric plants, backup control centers, mutual assistance networks, and deep cleaning protocols to maintain reliability amid reduced demand and COVID-19 risks.

 

Key Points

US Grid Pandemic Response encompasses measures by utilities and operators to safeguard power reliability during COVID-19

✅ Control rooms staffed on-site; operators split across backup centers

✅ Health screenings, deep cleaning, and isolation protocols mitigate contagion

✅ Reduced demand and mutual assistance improve grid resilience

 

Control rooms are the brains of NYPA’s power plants, which are mostly hydroelectric and supply about a quarter of all the electricity in New York state. They’re also a bit like human petri dishes. The control rooms are small, covered with frequently touched switches and surfaces, and occupied for hours on end by a half-dozen employees. Since social distancing and telecommuting isn’t an option in this context, NYPA has instituted regular health screenings and deep cleanings to keep the coronavirus out.

The problem is that each power plant relies on only a handful of control room operators. Since they have a specialized skill set, they can’t be easily replaced if they get sick. “They are very, very critical,” says Gil Quiniones, NYPA president and CEO. If the pandemic worsens, Quiniones says that NYPA may require control room operators to live on-site at power plants to reduce the chance of the virus making it in from the outside world. It sounds drastic, but Quiniones says NYPA has done it before during emergencies—once during the massive 2003 blackout, and again during Hurricane Sandy.

Meanwhile, PJM is one of North America’s nine regional grid operators and manages the transmission lines that move electricity from power plants to millions of customers in 13 states on the Eastern seaboard, including Washington, DC. PJM has had a pandemic response plan on the books for 15 years, but Mike Bryson, senior vice president of operations, says that this is the first time it’s gone into full effect. As of last week, about 80 percent of PJM’s 750 full-time employees have been working from home. But PJM also requires a skeleton crew of essential workers to be on-site at all times in its control centers. As part of its emergency planning, PJM built a backup control center years ago, and now it is splitting control center operators between the two to limit contact.

Past experience with large-scale disasters has helped the energy sector keep the lights on and ventilators running during the pandemic. Energy is one of 16 sectors that the US government has designated as “critical infrastructure,” which also includes the communications industry, transportation sector, and food and water systems. Each is seen as vital to the country and therefore has a duty to maintain operations during national emergencies.

“We need to be treated as first responders,” says Scott Aaronson, the vice president of security and preparedness at the Edison Electric Institute, a trade group representing private utilities. “Everybody's goal right now is to keep the public healthy, and to keep society functioning as best we can. A lack of electricity will certainly create a challenge for those goals.”

America’s electricity grid is a patchwork of regional grid operators connecting private and state-owned utilities. This means simply figuring out who’s in charge and coordinating among the various organizations is one of the biggest challenges to keeping the electricity flowing during a national emergency, according to Aaronson.

Generally, a lot of this responsibility falls on formal energy organizations like the nonprofit North American Electric Reliability Corporation and the Federal Energy Regulatory Commission. But during the coronavirus outbreak, an obscure organization run by the CEOs of electric utilities called the Electricity Subsector Coordinating Council has also served as a primary liaison between the federal government and the thousands of utility companies around the US. Aaronson says the organization has been meeting twice a week for the past three weeks to ensure that utilities are implementing best practices in their response to the coronavirus, as well as to inform the government of material needs to keep the energy sector running smoothly.

This tight-knit coordination will be especially important if the pandemic gets worse, as many forecasts suggest it will. Most utilities belong to at least one mutual assistance group, an informal network of electricity suppliers that help each other out during a catastrophe. These mutual assistance networks are usually called upon following major storms that threaten prolonged outages. But they could, in principle, be used to help during the coronavirus pandemic too. For example, if a utility finds itself without enough operators to manage a power plant, it could conceivably borrow trained operators from another company to make sure the power plant stays online.

So far, utilities and grid operators have managed to make it work on their own. There have been a handful of coronavirus cases reported at power plants, but they haven’t yet affected these plants’ ability to deliver energy. The challenges of running a power plant with a skeleton crew is partially offset by the reduced power demand as businesses shut down and more people work from home, says Robert Hebner, the director of the Center for Electromechanics at the University of Texas. “The reduced demand for power gives utilities a little breathing room,” says Hebner.

A recent study by the University of Chicago’s Energy Policy Institute found that electricity demand in Italy has plunged by 18 percent following the severe increase in coronavirus cases in the country. Energy demand in China also plummeted as a result of the pandemic. Bryson, at PJM, says the grid operator has seen about a 6 percent decrease in electricity demand in recent weeks, but expects an even greater drop if the pandemic gets worse.

Generally speaking, problems delivering electricity in the US occur when the grid is overloaded or physically damaged, such as during California wildfires or a hurricane.

An open question among coronavirus researchers is whether there will be a second wave of the pandemic later this year. During the Spanish flu pandemic in the early 20th century, the second wave turned out to be deadlier than the first. If the coronavirus remerges later this year, it could be a serious threat to reliable electricity in the US, says John MacWilliams, a former associate deputy secretary of the Department of Energy and a senior fellow at Columbia University’s Center on Global Energy Policy.

“If this crisis extends into the fall, we're going to hit hurricane season along the coasts,” MacWilliams says. “Utilities are doing a very good job right now, but if we get unlucky and have an active hurricane season, they're going to get very stressed because the number of workers that are available to repair damage and restore power will become more limited.”

This was a sentiment echoed by Bryson at PJM. “Any one disaster is manageable, but when you start layering them on top of each other, it gets much more challenging,” he adds. The US electricity grid struggles to handle major storms as it is, and these challenges will be heightened if too many workers are home sick. In this sense, the energy sector’s ability to deliver the electricity needed to keep manufacturing medical supplies or keep ventilators running depends to a large extent on our ability to flatten the curve today. The coronavirus is bad enough without having to worry about the lights going out.

 

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More than Two-thirds of Americans Indicate Willingness to Give or Donate Part of their Income in Support of the Fight Against Climate Change

U.S. Climate Change Donation Survey reveals Americans' willingness to fund sustainability via government incentives, electrification, and renewable energy. Public opinion favors wind, solar, and decarbonization, highlighting policy support post-pandemic amid economic recovery efforts.

 

Key Points

A 2020 U.S. poll on climate attitudes: donation willingness, renewable support, and views on government incentives.

✅ 70% would donate income; 31% would donate nothing.

✅ 59% prefer government incentives; 47% support taxes, conservation.

✅ 85% land wind, 83% offshore wind, 90% solar support.

 

A new study of American consumers' attitudes toward climate change finds that more than two-thirds of respondents (70%) indicate their willingness to give or donate a percentage of their personal income to support the fight against climate change and the path to net-zero electricity emissions by mid-century. 

Twenty-eight percent indicated they were willing to provide less than 1% of their income; 33% said they would be willing to contribute 1-5% of their income; 6% said they would give between 6-10% of their income; and 3% indicated they would contribute more than 10% of their income. Just under one-third (31%) of those surveyed indicated they were unwilling to give or donate any percentage of their income to support the fight against climate change.

The U.S. findings are part of a series of surveys commissioned by Nexans in the U.S., UK and France, in order to determine public opinion on climate change and related issues in the wake of the COVID-19 pandemic. The U.S. study was conducted online by Researchscape from August 20 – 24, 2020. It had 1,013 respondents, ages 18 or older, with the results weighted to be representative of the overall population (variables available upon request).

Nexans, is headquartered in Paris with a major offshore wind cable manufacturing facility in Charleston, S.C. and an industrial cable manufacturing facility in El Dorado, Ark. The company is fully committed to fighting climate change and is helping to make sustainable electrification possible. The survey was developed as part of its celebration of the first Climate Day in Paris which included a roundtable event with world-renowned experts, the release of an unprecedented global study by Roland Berger on the challenges raised by the electrification of the world, the question of whether the global energy transition is on track, and Nexans' own commitment to be carbon neutral by 2030.

Paying the Tab to Address Climate Change

Participants were given the opportunity to choose from seven multiple responses to the question "How should the fight against climate change be paid for?" The majority (59%) replied it should be paid for by "government incentives for both businesses and consumers." It was followed by "federal, state and/or local taxes" and "conservation programs" (tied at 47%); "business investments" (42%), such as carbon-free electricity initiatives, and "consumer-driven purchases" (33%). Just 9% selected none of the above and 2% selected other.

"Through the organization of this Climate Day, Nexans is asserting itself not only as an actor but also a thought leader of the energy transition for a sustainable electrification of the world. This electrification raises a number of challenges and paradoxes that must be overcome. And it will only happen with the direct involvement of the populations concerned. These surveys provide a better understanding of the level of information and disinformation, including climate change denial, in public opinion as well as their level of acceptability of these lifestyle changes," said Christopher Guérin, CEO, Nexans.

Among other findings, 44% are dissatisfied with the job that federal and state governments are doing to address climate change, while utilities like Duke Energy face investor pressure to release climate reports, 35% are somewhat satisfied and 21% are either very satisfied or completed satisfied with government's role.

Americans expressed overwhelmingly favorable views of wind and solar renewable energy proposals, as carbon emissions fall when electricity producers move away from coal. Specifically, 85% stated being in favor of wind turbines on land (15% against), 83% in favor of wind turbines off the coast (17% against) and 90% in support of solar panel farms (10% opposed).

Those surveyed were asked about their current and changing priorities towards climate change as influenced by the coronavirus pandemic and impacts like extreme heat on electricity bills. Thirty-nine percent indicated that climate change was no more and no less a priority due to the current health emergency; just under a third (31%) indicated that climate change is more of a priority while 30% said it was less of a priority.

In similar research conducted by Nexans in the United Kingdom, nearly two thirds (65.8%) of UK respondents said they would be willing to donate part of their salary to fight climate change. Furthermore, nearly a third (29%) of the UK's consumers believe that combating climate change has become more of a priority in light of the coronavirus pandemic. The UK research was conducted online by Savanta from August 21 – 24, 2020. A total of 2210 respondents, aged 16 and above, representative of the UK population took part.

 

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TransAlta Scraps Wind Farm as Alberta's Energy Future Blusters

Alberta Wind Energy Policy Changes highlight TransAlta's Riplinger cancellation amid UCP buffer zones for pristine viewscapes, regulatory uncertainty, and market redesign debates, reshaping Alberta's renewables investment climate and clean energy diversification plans.

 

Key Points

UCP rules and market shifts reshaping wind siting, permits, and finance, increasing uncertainty and delays for new projects.

✅ 35-km buffer near pristine viewscapes limits wind siting

✅ TransAlta cancels 300 MW Riplinger project

✅ Market redesign uncertainty chills renewables investment

 

The winds of change are blowing through Alberta's energy landscape today, and they're not necessarily carrying good news for renewable energy development. TransAlta, a major Canadian energy company, recently announced the cancellation of a significant wind farm project, citing a confluence of factors that create uncertainty for the future of wind power in the province. This decision throws a spotlight on the ongoing debate between responsible development and fostering a clean energy future in Alberta.

The scrapped project, the Riplinger wind farm near Cardston, Alberta, was envisioned as a 300-megawatt facility capable of providing clean electricity to the province. However, TransAlta pointed to recent regulatory changes implemented by the United Conservative Party (UCP) government, following the end of the renewable energy moratorium in Alberta, as a key reason for the project's demise. These changes include the establishment of a 35-kilometer buffer zone around designated "pristine viewscapes," which significantly restricts potential wind farm locations.

John Kousinioris, CEO of TransAlta, expressed frustration with the lack of clarity surrounding the future of renewable energy policy in Alberta. He highlighted this, along with the aforementioned rule changes, as major factors in the project's cancellation. TransAlta has also placed three other power projects on hold, indicating a broader concern about the current investment climate for renewable energy in the province.

The news has been met with mixed reactions. While some residents living near the proposed wind farm site celebrate the decision due to concerns about potential impacts on tourism and the environment, others worry about the implications for Alberta's clean energy ambitions, including renewable energy job growth in the province. The province, a major energy producer in Canada, has traditionally relied heavily on fossil fuels, and this decision might be seen as a setback for its goals of diversifying its energy mix.

The Alberta government defends its changes to renewable energy policy, arguing that they are necessary to ensure responsible development and protect sensitive ecological areas. However, the TransAlta decision raises questions about the potential unintended consequences of these changes. Critics argue that the restrictions might discourage investment in renewable energy and the province's ability to sell clean power to wider markets altogether, hindering Alberta's progress towards a more sustainable future.

Adding to the uncertainty is the ongoing process of redesigning Alberta's energy market. The aim is to incorporate more renewable energy sources, including solar energy expansion across the grid, but the details of this redesign remain unclear. This lack of transparency makes it difficult for companies like TransAlta to make sound investment decisions, further dampening enthusiasm for renewable energy projects.

The future of wind energy development in Alberta remains to be seen. TransAlta's decision to scrap the Riplinger project is a significant development, and it will be interesting to observe how other companies respond to the changing regulatory landscape, as a Warren Buffett-linked developer pursues a $200 million wind project in Alberta. Striking a balance between responsible development, protecting the environment, and fostering a clean energy future will be a crucial challenge for Alberta moving forward.

This situation highlights the complex considerations involved in transitioning to a renewable energy future, where court rulings on wind projects can influence policy and investment decisions. While environmental concerns are paramount, ensuring a stable and predictable investment climate is equally important. Open communication and collaboration between industry, government, and stakeholders will be key to navigating these challenges and ensuring Alberta can harness the power of wind energy for a sustainable future.

 

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Community-generated green electricity to be offered to all in UK

Community Power Tariff UK delivers clean electricity from community energy projects, sourcing renewable energy from local wind and solar farms, with carbon offset gas, transparent provenance, fair pricing, and reinvestment in local generators across Britain.

 

Key Points

UK energy plan delivering 100% community renewable power with carbon-offset gas, sourced from local wind and solar.

✅ 100% community-generated electricity from UK wind and solar

✅ Fair prices with profits reinvested in local projects

✅ Carbon-offset gas and verified, transparent provenance

 

UK homes will soon be able to plug into community wind and solar farms from anywhere in the country through the first energy tariff to offer clean electricity exclusively from community projects.

The deal from Co-op Energy comes as green energy suppliers race to prove their sustainability credentials amid rising competition for eco-conscious customers and “greenwashing” in the market.

The energy supplier will charge an extra £5 a month over Co-op’s regular tariff to provide electricity from community energy projects and gas which includes a carbon offset in the price.

Co-op, which is operated by Octopus Energy after it bought the business from the Midcounties Co-operative last year, will source the clean electricity for its new tariff directly from 90 local renewable energy generation projects across the UK, including the Westmill wind and solar farms in Oxfordshire. It plans to use all profits to reinvest in maintaining the community projects and building new ones.

Phil Ponsonby, the chief executive of Midcounties Co-operative, said the tariff is the UK’s only one to be powered by 100% community-generated electricity and would ensure a fair price is paid to community generators too, amid a renewable energy auction boost that supports wider deployment.

Customers on the Community Power tariff will be able to “see exactly where it is being generated at small scale sites across the UK, and, with new rights to sell solar power back to energy firms, they know it is benefiting local communities”, he said.

Co-op, which has about 300,000 customers, has set itself apart from a rising number of energy supply deals which are marked as 100% renewable, but are not as green as they seem, even as many renewable projects are on hold due to grid constraints.

Consumer group Which? has found that many suppliers offer renewable energy tariffs but do not generate renewable electricity themselves or have contracts to buy any renewable electricity directly from generators.

Instead, the “pale green” suppliers exploit a loophole in the energy market by snapping up cheap renewable energy certificates, without necessarily buying energy from renewables projects.

The certificates are issued by the regulator to renewable energy developers for each megawatt generated, but these can be sold separately from the electricity for a fraction of the price.

A survey conducted last year found that one in 10 people believe that a renewables tariff means that the supplier generates at least some of its electricity from its own renewable energy projects.

Ponsonby said the wind and solar schemes that generate electricity for the Community Power tariff “plough the profits they make back into their neighbourhoods or into helping other similar projects get off the ground”.

Greg Jackson, the chief executive of Octopus Energy, said being able to buy locally-sourced clean, green energy is “a massive jump in the right direction” which will help grow the UK’s green electricity capacity nationwide.

“Investing in more local energy infrastructure and getting Britain’s homes run by the sun when it’s shining and wind energy when it’s blowing can end our reliance on dirty fossil fuels sooner than we hoped,” he said.

 

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Turkish powership to generate electricity from LNG in Senegal

Karpowership LNG powership in Senegal will supply 15% of the grid, a 235 MW floating power plant bound for Dakar, enabling fast deployment, base-load electricity, and cleaner natural gas generation for West Africa.

 

Key Points

A 235 MW floating plant supplying 15% of Senegal's grid with fast, reliable, lower-emission LNG electricity.

✅ 235 MW LNG-ready floating plant meets 15% of Senegal's demand

✅ Rapid deployment: commercial operations expected early October

✅ Cleaner natural gas conversion planned after six months

 

Turkey's Karpowership company, the designer and builder of the world's first floating power plants and the global brand of Karadeniz Holding, will meet 15% of Senegal's electricity needs from liquefied natural gas (LNG) with the 235-megawatt (MW) powership Ayşegül Sultan, which started its voyage from Turkey to Senegal, where an African Development Bank review of a coal plant is underway, on Sunday.

Karpowership, operating 22 floating power plants in more than 10 countries around the world, where France's first offshore wind turbine is now producing electricity, has invested over $5 billion in this area.

In a statement to members of the press at Karmarine Shipyard, Karpowership Trade Group Chair Zeynep Harezi said they aimed to provide affordable electricity to countries in need of electricity quickly and reliably, as projects like the Egypt-Saudi power link expand regional grids, adding that they could commission energy ships capable of generating the base electric charge of the countries, as tidal power in Nova Scotia begins supplying the grid, in a period of about a month.

Harezi recalled that Karpowership commissioned the first floating energy ship in 2007 in Iraq, followed by Lebanon, Ghana, Indonesia, Mozambique, Zambia, Gambia, Sierra Leone, Sudan, Cuba, Guinea Bissau and Senegal, while Scottish tidal power demonstrates marine potential as well. "We meet the electricity needs of 34 million people in many countries," she stressed. Harezi stated that the energy ships, all designed and produced by Turkish engineers, use liquid fuel, but all ships can covert to the second fuel.

Considering the impact of electricity production on the environment, Harezi noted that they plan to convert the entire fleet from liquid fuel to natural gas, with complementary approaches like power-to-gas in Europe helping integrate renewables. "With a capacity of 480 megawatts each, the world's largest floating energy vessels operate in Indonesia and Ghana. The conversion to gas has been completed in our project in Indonesia. We have also initiated the conversion of the Ghana vessel into gas," she said.

Harezi explained that they would continue to convert their fleets to natural gas in the coming period. "Our 235-MW floating electric vessel, the Ayşegül Sultan, sets sail today to meet 15% of Senegal's electricity needs on its own. After an approximately 20-day cruise, the vessel will reach Dakar, the capital of Senegal, and will begin commercial operation in early October," Harezi continued. "We plan to use liquid fuel as bridging fuel in the first six months. At the end of the first six months, we will start to produce electricity from LNG on our ship. Thus, Ayşegül Sultan will be the first project to generate electricity from LNG in Africa, while the world's most powerful tidal turbine is delivering power to the grid, officials said. Our floating power plant to be sent to Mozambique is designed to generate electricity from LNG. It is also scheduled to start operations in the next year."

 

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Bruce nuclear reactor taken offline as $2.1B project 'officially' begins

Bruce Power Unit 6 refurbishment replaces major reactor components, shifting supply to hydroelectric and natural gas, sustaining Ontario jobs, extending plant life to 2064, and managing radioactive waste along Lake Huron, on-time and on-budget.

 

Key Points

A 4-year, $2.1B reactor overhaul within a 13-year, $13B program to extend plant life to 2064 and support Ontario jobs.

✅ Unit 6 offline 4 years; capacity shift to hydro and gas

✅ Part of 13-year, $13B program; extends life to 2064

✅ Creates jobs; manages radioactive waste at Lake Huron

 

The world’s largest nuclear fleet, became a little smaller Monday morning. Bruce Power has began the process to take Unit 6 offline to begin a $2.1 billion project, supported by manufacturing contracts with key suppliers, to replace all the major components of the reactor.

The reactor, which produces enough electricity to power 750,000 homes and reflects higher output after upgrades across the site, will be out of service for the next four years.

In its place, hydroelectric power and natural gas will be utilized more.

Taking Unit 6 offline is just the “official” beginning of a 13-year, $13-billion project to refurbish six of Bruce Power’s eight nuclear reactors, as Ontario advances the Pickering B refurbishment as well on its grid.

Work to extend the life of the nuclear plant started in 2016, and the company recently marked an operating record while supporting pandemic response, but the longest and hardest part of the project - the major component replacement - begins now.

“The Unit 6 project marks the next big step in a long campaign to revitalize this site,” says Mike Rencheck, Bruce Power’s president and CEO.

The overall project is expected to last until 2033, and mirrors life extensions at Pickering supporting Ontario’s zero-carbon goals, but will extend the life of the nuclear plant until 2064.

Extending the life of the Bruce Power nuclear plant will sustain 22,000 jobs in Ontario and add $4 billion a year in economic activity to the province, say Bruce Power officials.

About 2,000 skilled tradespeople will be required for each of the six reactor refurbishments - 4,200 people already work at the sprawling nuclear plant near Kincardine.

It will also mean tons of radioactive nuclear waste will be created that is currently stored in buildings on the Bruce Power site, along the shores of Lake Huron.

Bruce Power restarted two reactors back in 2012, and in later years doubled a PPE donation to support regional health partners. That project was $2-billion over-budget, and three years behind schedule.

Bruce Power officials say this refurbishment project is currently on-time and on-budget.

 

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