AECL rapped for touting Candu design

By Toronto Star


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The government agency charged with selecting reactor designs for a new nuclear plant at Darlington has warned Atomic Energy of Canada Ltd. against publicly touting its Candu technology as the best choice for the province.

Infrastructure Ontario's rules explicitly forbid bidders – including their partners, employees, advisers and representatives – from publicly promoting their qualifications or the merits of their technology in relation to the bidding process.

"AECL has been cautioned to discontinue behaviour that is not in keeping with the spirit of (the rules)," according to a notice recently sent by the agency to all bidders. Infrastructure Ontario provided no other details, citing confidentiality.

Lorne Burger, a spokesperson for the agency, said the rules are there for a reason. "We're trying to maintain the integrity of the process. We tell vendors about the restrictions and we take the restrictions very seriously."

AECL, leading a group of partners called Team Candu, is competing against France's Areva NP and U.S. giant Westinghouse Electric to supply between two and four reactors to Ontario.

Sources said the Organization of Candu Industries (OCI), a group representing 107 companies that work with Candu technology, is likely at the heart of the warning. The group has been encouraging its members to write letters to "elected representatives and media" in support of Candu technology to "set the record straight about misconceptions."

In 2006, OCI became an associate member of Team Candu, a group of companies including AECL that is bidding on the Ontario reactor business. A spokesperson for AECL declined comment, citing the communication restrictions.

Steve Aplin, head of energy consulting with Ottawa-based HDP Group Inc., said the communication ban is there to create a level playing field for what will ultimately be a closely scrutinized political decision.

"It is frustrating there is a ban," he said. "The bottom line is that all three vendors are going to produce reactors that will give you decent performance over their life. If that's the case, what criteria do we use to evaluate the bids?"

The ban means AECL can't play up its home team strengths to win public or political support, including any economic advantages it might have related to its local supply chain.

It also means its rivals can't draw attention to AECL's recent fumbles, including the Chalk River isotopes fiasco, the subsequent billion-dollar lawsuit from MDS Inc. – and sloppy record-keeping on the Bruce Power restart project.

The Crown corporation's rivals aren't without their own troubles. Recent news of uraniumn leaks at two separate Areva nuclear sites in France have led to public uproar in that country. Areva's first next-generation reactor project, in Finland, is two years delayed and $1.5 billion over budget. A small fire at the site last week is expected to delay the project even further.

Aplin said Westinghouse, the leading U.S. supplier, is riding high on reactor sales to the Chinese, where ground was broken last week on the first reactor unit. "But that doesn't mean Westinghouse hasn't had its own mishaps over the years."

Meanwhile, AECL and Team Candu member SNC Lavalin recently wrote Gary Lunn, the minister of natural resources, requesting that the federal government provide billions of dollars in financing to help AECL compete with its better-funded rivals in Ontario, according to reports.

Team Candu is also asking Ottawa to cover potential cost overruns, which Ontario has made clear it will not shoulder.

"It's nothing that Areva and Westinghouse are also not getting," said Aplin.

"They're each getting the support of the French and American governments."

But Shawn-Patrick Stensil, who tracks the nuclear industry for Greenpeace Canada, said the whole point of creating Team Candu was to bring together a handful of large companies capable of shouldering the risk on their own.

"They're now reversing on Team Candu and this proves it's not working.

"Now they're coming hat in hand to the government."

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Current Model For Storing Nuclear Waste Is Incomplete

Nuclear Waste Corrosion accelerates as stainless steel, glass, and ceramics interact in aqueous conditions, driving localized corrosion in repositories like Yucca Mountain, according to Nature Materials research on high-level radioactive waste storage.

 

Key Points

Degradation of waste forms and canisters from water-driven chemistry, causing accelerated, localized corrosion in storage.

✅ Stainless steel-glass contact triggers severe localized attack

✅ Ceramics and steel co-corrosion observed under aqueous conditions

✅ Yucca Mountain-like chemistry accelerates waste form degradation

 

The materials the United States and other countries plan to use to store high-level nuclear waste, even as utilities expand carbon-free electricity portfolios, will likely degrade faster than anyone previously knew because of the way those materials interact, new research shows.

The findings, published today in the journal Nature Materials (https://www.nature.com/articles/s41563-019-0579-x), show that corrosion of nuclear waste storage materials accelerates because of changes in the chemistry of the nuclear waste solution, and because of the way the materials interact with one another.

"This indicates that the current models may not be sufficient to keep this waste safely stored," said Xiaolei Guo, lead author of the study and deputy director of Ohio State's Center for Performance and Design of Nuclear Waste Forms and Containers, part of the university's College of Engineering. "And it shows that we need to develop a new model for storing nuclear waste."

Beyond waste storage, options like carbon capture technologies are being explored to reduce atmospheric CO2 alongside nuclear energy.

The team's research focused on storage materials for high-level nuclear waste -- primarily defense waste, the legacy of past nuclear arms production. The waste is highly radioactive. While some types of the waste have half-lives of about 30 years, others -- for example, plutonium -- have a half-life that can be tens of thousands of years. The half-life of a radioactive element is the time needed for half of the material to decay.

The United States currently has no disposal site for that waste; according to the U.S. General Accountability Office, it is typically stored near the nuclear power plants where it is produced. A permanent site has been proposed for Yucca Mountain in Nevada, though plans have stalled. Countries around the world have debated the best way to deal with nuclear waste; only one, Finland, has started construction on a long-term repository for high-level nuclear waste.

But the long-term plan for high-level defense waste disposal and storage around the globe is largely the same, even as the U.S. works to sustain nuclear power for decarbonization efforts. It involves mixing the nuclear waste with other materials to form glass or ceramics, and then encasing those pieces of glass or ceramics -- now radioactive -- inside metallic canisters. The canisters then would be buried deep underground in a repository to isolate it.

At the generation level, regulators are advancing EPA power plant rules on carbon capture to curb emissions while nuclear waste strategies evolve.

In this study, the researchers found that when exposed to an aqueous environment, glass and ceramics interact with stainless steel to accelerate corrosion, especially of the glass and ceramic materials holding nuclear waste.

In parallel, the electrical grid's reliance on SF6 insulating gas has raised warming concerns across Europe.

The study qualitatively measured the difference between accelerated corrosion and natural corrosion of the storage materials. Guo called it "severe."

"In the real-life scenario, the glass or ceramic waste forms would be in close contact with stainless steel canisters. Under specific conditions, the corrosion of stainless steel will go crazy," he said. "It creates a super-aggressive environment that can corrode surrounding materials."

To analyze corrosion, the research team pressed glass or ceramic "waste forms" -- the shapes into which nuclear waste is encapsulated -- against stainless steel and immersed them in solutions for up to 30 days, under conditions that simulate those under Yucca Mountain, the proposed nuclear waste repository.

Those experiments showed that when glass and stainless steel were pressed against one another, stainless steel corrosion was "severe" and "localized," according to the study. The researchers also noted cracks and enhanced corrosion on the parts of the glass that had been in contact with stainless steel.

Part of the problem lies in the Periodic Table. Stainless steel is made primarily of iron mixed with other elements, including nickel and chromium. Iron has a chemical affinity for silicon, which is a key element of glass.

The experiments also showed that when ceramics -- another potential holder for nuclear waste -- were pressed against stainless steel under conditions that mimicked those beneath Yucca Mountain, both the ceramics and stainless steel corroded in a "severe localized" way.

Other Ohio State researchers involved in this study include Gopal Viswanathan, Tianshu Li and Gerald Frankel.

This work was funded in part by the U.S. Department of Energy Office of Science.

Meanwhile, U.S. monitoring shows potent greenhouse gas declines confirming the impact of control efforts across the energy sector.

 

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California Regulators Face Calls for Action as Electricity Bills Soar

California Electricity Rate Hikes strain households as CPUC weighs fixed charges, utility profit caps, and stricter oversight. Wildfire mitigation, transmission upgrades, and aging grid costs push bills higher amid renewable integration and consumer protection debates.

 

Key Points

California power rates are rising from wildfire mitigation, transmission costs, and grid upgrades under CPUC review.

✅ CPUC mulls fixed charges to stabilize bills and rate design.

✅ Advocates push profit caps; utilities cite investment needs.

✅ Stronger oversight sought to curb waste and boost transparency.

 

California residents and consumer groups are demanding relief as their electricity bills continue to climb, putting increasing pressure on state regulators to intervene.  A recent op-ed in the San Francisco Chronicle highlights the growing frustration, emphasizing that California already has some of the highest electricity rates in the country, as coverage on why prices are soaring underscores, and these costs are only getting more burdensome.


Factors Driving High Bills

The rising electricity bills are attributed to several factors:

  • Wildfire Mitigation and Liability: Utility companies are investing heavily in wildfire prevention measures, such as vegetation management and infrastructure hardening. The costs of these initiatives, along with the increasing financial liabilities associated with wildfire risk, are being passed on to consumers.
  • Transmission Costs: California's vast geography and move towards renewable energy sources necessitate significant investments in transmission lines to deliver electricity from remote locations. These infrastructure costs also contribute to higher bills.
  • Aging Infrastructure: California's electricity grid is aging and requires upgrades and maintenance, and the expenses associated with these efforts are reflected in consumer rates.


Proposed Solutions and Debates

Consumer advocates and some lawmakers are calling for various actions to address the issue, including a potential revamp of electricity rates to clean the grid:

  • Fixed Charge Proposal: The California Public Utilities Commission (CPUC) is considering a proposal to introduce an income-based fixed charge on electricity bills. This change aims to make rates more predictable and encourage investment in renewable energy sources. However, opponents argue that it could disproportionately impact low-income households and discourage conservation.
  • Utility Profit Caps: Some advocate for capping utility companies' profits. They believe excessive profits should be returned to customers in the form of lower rates. However, utility companies counter that they need a certain level of profit to invest in infrastructure and maintain a reliable grid.
  • Increased Oversight: Consumer groups are calling for stricter oversight of utility company spending, and legislators are preparing to crack down on utility spending through upcoming votes as well. They demand transparency and want to ensure that funds collected from customers are being used for necessary investments and not for lobbying or excessive executive compensation.

 

Comparisons and National Implications

Similar concerns about rising utility bills are emerging in other parts of the country as more states transition to renewable energy and invest in infrastructure upgrades.

A report by the Energy Information Administration (EIA) shows that average residential electricity rates across the country have been on the rise for the past decade. While California currently ranks amongst the highest, major changes to electric bills are being debated, and other states are following suit, demonstrating the nationwide challenge of balancing affordability with necessary investments.

 

Uncertain Future

The California Public Utilities Commission is reviewing the fixed charge proposal and is expected to make a decision later this year, with income-based flat-fee utility bills moving closer in the process. The outcome of this decision and potential additional regulatory changes will have significant ramifications for California residents, and some lawmakers plan to overturn income-based charges if adopted, which could set a precedent for how other states handle the rising costs associated with the energy transition.

 

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B.C. electricity demand hits an all-time high

BC Hydro Peak Electricity Demand reached a record 10,902 megawatts during a cold snap, driven by home heating. Peak hours surged; load shifting and energy conservation can ease strain on the grid and lower bills.

 

Key Points

Record winter peak of 10,902 MW, set during a cold snap, largely from home heating demand at peak hours.

✅ All-time high load: 10,902 MW between 5 and 6 p.m., Dec. 27.

✅ Cold snap increased home heating demand during peak hours.

✅ Shift laundry and dishwashers off-peak; use programmable thermostats.

 

BC Hydro says the province set a new record for peak electricity demand on Monday as temperatures hit extreme lows, and Quebec shattered consumption records during similar cold weather.

Between 5 and 6 p.m. on Dec. 27, demand for electricity hit an all-time high of 10,902 megawatts, which is higher than the previous record of 10,577 megawatts set in 2020, and follows a record-breaking year in 2021 for the utility.

“The record represents a single moment in the hour when demand for electricity was the highest yesterday,” says Simi Heer, BC Hydro spokesperson, in a statement. “Most of the increase is likely due to additional home heating required during this cold snap.”

In addition to the peak demand record on Monday, BC Hydro has observed an overall increase in electricity demand since Friday, and has noted that cryptocurrency mining electricity use is an emerging load in the province as well. Monday’s hourly peak demand was 18 per cent higher than Friday’s, while Calgary's electricity use soared during a frigid February, underscoring how cold snaps strain regional grids.

“BC Hydro has enough supply options in place to meet increasing electricity demand,” adds Heer, and pointed to customer supports like a winter payment plan for households managing higher bills. “However, if British Columbians want to help ease some of the demand on the system during peak times, we encourage shifting activities like doing laundry or running dishwashers to earlier in the day or later in the evening.”

BC Hydro is also offering energy conservation tips for people looking to lower their electricity use and their electricity bills, noting that Earth Hour once saw electricity use rise in the province:

Manage your home heating actively by turning the heat down when no one his home or when everyone is sleeping. Consider installing a programmable thermostat to automatically adjust temperatures at different times based on your family's activities, and remember that in warmer months wasteful air conditioning can add $200 to summer energy bills. BC Hydro recommends the following temperatures:

16 degrees Celsius when sleeping or away from home
21 degrees Celsius when relaxing, watching TV
18 degrees Celsius when doing housework or cleaning
 

 

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IEA: Asia set to use half of world's electricity by 2025

Asia Electricity Consumption 2025 highlights an IEA forecast of surging global power demand led by China, lagging access in Africa, rising renewables and nuclear output, stable emissions, and weather-dependent grids needing flexibility and electrification.

 

Key Points

An IEA forecast that Asia will use half of global power by 2025, led by China, as renewables and nuclear drive supply.

✅ Asia to use half of global electricity; China leads growth

✅ Africa just 3% consumption despite rapid population growth

✅ Renewables, nuclear expand; grids must boost flexibility

 

Asia will for the first time use half of the world’s electricity by 2025, even as global power demand keeps rising and Africa continues to consume far less than its share of the global population, according to a new forecast released Wednesday by the International Energy Agency.

Much of Asia’s electricity use will be in China, a nation of 1.4 billion people whose China's electricity sector is seeing shifts as its share of global consumption will rise from a quarter in 2015 to a third by the middle of this decade, the Paris-based body said.

“China will be consuming more electricity than the European Union, United States and India combined,” said Keisuke Sadamori, the IEA’s director of energy markets and security.

By contrast, Africa — home to almost a fifth of world’s nearly 8 billion inhabitants — will account for just 3% of global electricity consumption in 2025.

“This and the rapidly growing population mean there is still a massive need for increased electrification in Africa,” said Sadamori.

The IEA’s annual report predicts that low-emissions sources will account for much of the growth in global electricity supply over the coming three years, including nuclear power and renewables such as wind and solar. This will prevent a significant rise in greenhouse gas emissions from the power sector, it said.

Scientists say sharp cuts in all sources of emissions are needed as soon as possible to keep average global temperatures from rising 1.5 degrees Celsius (2.7 Fahrenheit) above pre-industrial levels. That target, laid down in the 2015 Paris climate accord, appears increasingly doubtful as temperatures have already increased by more than 1.1 C since the reference period.

One hope for meeting the goal is a wholesale shift away from fossil fuels such as coal, gas and oil toward low-carbon sources of energy. But while some regions are reducing their use of coal and gas for electricity production, in others, soaring electricity and coal use are increasing, the IEA said.

The 134-page also report warned that surging electricity demand and supply are becoming increasingly weather dependent, a problem it urged policymakers to address.

“In addition to drought in Europe, there were heat waves in India (last year),” said Sadamori. “Similarly, central and eastern China were hit by heatwaves and drought. The United States, where electricity sales projections continue to fall, also saw severe winter storms in December, and all those events put massive strain on the power systems of these regions.”

“As the clean energy transition gathers pace, the impact of weather events on electricity demand will intensify due to the increased electrification of heating, while the share of weather-dependent renewables poised to eclipse coal will continue to grow in the generation mix,” the IEA said. “In such a world, increasing the flexibility of power systems while ensuring security of supply and resilience of networks will be crucial.”

 

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Ontario Energy Board Sets New Electricity Rate Plan Prices and Support Program Thresholds

OESP Eligibility 2024 updates Ontario electricity affordability: TOU, Tiered, Ultra-Low-Overnight price plans, online bill calculator, higher income thresholds, monthly credits for low-income households, and a winter disconnection ban for residential customers.

 

Key Points

Raises income thresholds and credits to help low-income Ontarians cut electricity costs and choose suitable price plans.

✅ TOU, Tiered, and ULO price plans with online bill calculator

✅ Income eligibility thresholds raised up to 35% on March 1, 2024

✅ Winter disconnection ban for residences: Nov 15, 2023 to Apr 30, 2024

 

Residential, small business and farm customers can choose their price plan, either Time-Of-Use (TOU), Tiered or the ultra-low overnight rates price plan available to many customers. The OEB has an online bill calculator to help customers who are considering a switch in price plans and monitoring changes for electricity consumers this year. 

The Government of Ontario announced on Friday, October 19, 2023, that it is raising the income eligibility thresholds that enable Ontarians to qualify for the Ontario Electricity Support Program (OESP) by up to 35 percent. OESP is part of Ontario’s energy affordability framework and other support for electric bills meant to reduce the cost of electricity for low-income households by applying a monthly credit directly on to electricity bills.. The higher income eligibility thresholds will begin on March 1, 2024.

The amount of OESP bill credit is determined by the number of people living in a home and the household’s combined income, and can help offset typical bill increases many customers experience. The current income thresholds cap income eligibility at $28,000 for one-person households and $52,000 for five-person households, and temporary measures like the off-peak price freeze have also influenced bills in recent periods.

The new income eligibility thresholds, which will be in effect beginning March 1, 2024, will allow many more families to access the program as rates are about to change across Ontario.

In addition, under the OEB’s winter disconnection ban, which follows the Nov. 1 rate increase, electricity distributors cannot disconnect residential customers for non-payment from November 15, 2023, to April 30, 2024.

 

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Scientists generate 'electricity from thin air.' Humidity could be a boundless source of energy.

Air Humidity Energy Harvesting converts thin air into clean electricity using air-gen devices with nanopores, delivering continuous renewable energy from ambient moisture, as demonstrated by UMass Amherst researchers in Advanced Materials.

 

Key Points

A method using nanoporous air-gen devices to harvest continuous clean electricity from ambient atmospheric moisture.

✅ Nanopores drive charge separation from ambient water molecules

✅ Works across materials: silicon, wood, bacterial films

✅ Predictable, continuous power unlike intermittent solar or wind

 

Sure, we all complain about the humidity on a sweltering summer day. But it turns out that same humidity could be a source of clean, pollution-free energy, aligning with efforts toward cheap, abundant electricity worldwide, a new study shows.

"Air humidity is a vast, sustainable reservoir of energy that, unlike wind and solar power resources, is continuously available," said the study, which was published recently in the journal Advanced Materials.

While humidity harvesting promises constant output, advances like a new fuel cell could help fix renewable energy storage challenges, researchers suggest.

“This is very exciting,” said Xiaomeng Liu, a graduate student at the University of Massachusetts-Amherst, and the paper’s lead author. “We are opening up a wide door for harvesting clean electricity from thin air.”

In fact, researchers say, nearly any material can be turned into a device that continuously harvests electricity from humidity in the air, a concept echoed by raindrop electricity demonstrations in other contexts.

“The air contains an enormous amount of electricity,” said Jun Yao, assistant professor of electrical and computer engineering at the University of Massachusetts-Amherst and the paper’s senior author. “Think of a cloud, which is nothing more than a mass of water droplets. Each of those droplets contains a charge, and when conditions are right, the cloud can produce a lightning bolt – but we don’t know how to reliably capture electricity from lightning.

"What we’ve done is to create a human-built, small-scale cloud that produces electricity for us predictably and continuously so that we can harvest it.”

The heart of the human-made cloud depends on what Yao and his colleagues refer to as an air-powered generator, or the "air-gen" effect, which relates to other atmospheric power concepts like night-sky electricity studies in the field.

In broader renewable systems, flexible resources such as West African hydropower can support variable wind and solar output, complementing atmospheric harvesting concepts as they mature.

The study builds on research from a study published in 2020. That year, scientists said this new technology "could have significant implications for the future of renewable energy, climate change and in the future of medicine." That study indicated that energy was able to be pulled from humidity by material that came from bacteria; related bio-inspired fuel cell design research explores better electricity generation, the new study finds that almost any material, such as silicon or wood, also could be used.

The device mentioned in the study is the size of a fingernail and thinner than a single hair. It is dotted with tiny holes known as nanopores, it was reported. "The holes have a diameter smaller than 100 nanometers, or less than a thousandth of the width of a strand of human hair."

 

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