New reactor head ready for Davis-Besse

Proton Conducting Fuel Cells enable reversible hydrogen energy storage, coupling electrolyzers and fuel cells with ceramic catalysts and proton-conducting membranes to convert wind and solar electricity into fuel and back to reliable grid power.

Key Points

Proton conducting fuel cells store renewable power as hydrogen and generate electricity using reversible catalysts.

✅ Reversible electrolysis and fuel-cell operation in one device

✅ Ceramic air electrodes hit up to 98% splitting efficiency

✅ Scalable path to low-cost grid energy storage with hydrogen

If we want a shot at transitioning to renewable energy, we’ll need one crucial thing: technologies that can convert electricity from wind, sun, and even electricity from raindrops into a chemical fuel for storage and vice versa. Commercial devices that do this exist, but most are costly and perform only half of the equation. Now, researchers have created lab-scale gadgets that do both jobs. If larger versions work as well, they would help make it possible—or at least more affordable—to run the world on renewables.

The market for such technologies has grown along with renewables: In 2007, solar and wind provided just 0.8% of all power in the United States; in 2017, that number was 8%, according to the U.S. Energy Information Administration. But the demand for electricity often doesn’t match the supply from solar and wind, a key reason why the U.S. grid isn't 100% renewable today. In sunny California, for example, solar panels regularly produce more power than needed in the middle of the day, but none at night, after most workers and students return home.

Some utilities are beginning to install massive banks of cheaper solar batteries in hopes of storing excess energy and evening out the balance sheet. But batteries are costly and store only enough energy to back up the grid for a few hours at most. Another option is to store the energy by converting it into hydrogen fuel. Devices called electrolyzers do this by using electricity—ideally from solar and wind power—to split water into oxygen and hydrogen gas, a carbon-free fuel. A second set of devices called fuel cells can then convert that hydrogen back to electricity to power cars, trucks, and buses, or to feed it to the grid.

But commercial electrolyzers and fuel cells use different catalysts to speed up the two reactions, meaning a single device can’t do both jobs. To get around this, researchers have been experimenting with a newer type of fuel cell, called a proton conducting fuel cell (PCFC), which can make fuel or convert it back into electricity using just one set of catalysts.

PCFCs consist of two electrodes separated by a membrane that allows protons across. At the first electrode, known as the air electrode, steam and electricity are fed into a ceramic catalyst, which splits the steam’s water molecules into positively charged hydrogen ions (protons), electrons, and oxygen molecules. The electrons travel through an external wire to the second electrode—the fuel electrode—where they meet up with the protons that crossed through the membrane. There, a nickel-based catalyst stitches them together to make hydrogen gas (H2). In previous PCFCs, the nickel catalysts performed well, but the ceramic catalysts were inefficient, using less than 70% of the electricity to split the water molecules. Much of the energy was lost as heat.

Now, two research teams have made key strides in improving this efficiency, and a new fuel cell concept brings biological design ideas into the mix. They both focused on making improvements to the air electrode, because the nickel-based fuel electrode did a good enough job. In January, researchers led by chemist Sossina Haile at Northwestern University in Evanston, Illinois, reported in Energy & Environmental Science that they came up with a fuel electrode made from a ceramic alloy containing six elements that harnessed 76% of its electricity to split water molecules. And in today’s issue of Nature Energy, Ryan O’Hayre, a chemist at the Colorado School of Mines in Golden, reports that his team has done one better. Their ceramic alloy electrode, made up of five elements, harnesses as much as 98% of the energy it’s fed to split water.

When both teams run their setups in reverse, the fuel electrode splits H2 molecules into protons and electrons. The electrons travel through an external wire to the air electrode—providing electricity to power devices. When they reach the electrode, they combine with oxygen from the air and protons that crossed back over the membrane to produce water.

The O’Hayre group’s latest work is “impressive,” Haile says. “The electricity you are putting in is making H2 and not heating up your system. They did a really good job with that.” Still, she cautions, both her new device and the one from the O’Hayre lab are small laboratory demonstrations. For the technology to have a societal impact, researchers will need to scale up the button-size devices, a process that typically reduces performance. If engineers can make that happen, the cost of storing renewable energy could drop precipitously, thereby moving us closer to cheap abundant electricity at scale, helping utilities do away with their dependence on fossil fuels.

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National Grid power supply warning highlights electricity shortage risks amid low wind output, generator outages, and cold weather, reducing capacity margins and grid stability; considering demand response and reserve power to avoid blackout risk.

Key Points

An alert that reduced capacity from low wind and outages requires actions to maintain UK grid stability.

✅ Low wind output and generator outages reduce capacity margins

✅ ESO exploring demand response and reserve generation options

✅ Aim: maintain grid stability and avoid blackout risk

National Grid has warned that Britain’s electricity will be in short supply over the next few days after a string of unplanned power plant outages and unusually low wind speeds this week, as cheap wind power wanes across the system.

The electricity system operator said it will take action to “make sure there is enough generation” during the cold weather spell, including virtual power plants and other demand-side measures, to prevent a second major blackout in as many years.

“Unusually low wind output coinciding with a number of generator outages means the cushion of spare capacity we operate the system with has been reduced,” the company told its Twitter followers.

“We’re exploring measures and actions to make sure there is enough generation available to increase our buffer of capacity.”

A spokeswoman for National Grid said the latest electricity supply squeeze was not expected to be as severe as recorded last month, following reports that the government’s emergency energy plan was not going ahead, and added that the company did not expect to issue an official warning in the next 24 hours.

“We’re monitoring how the situation develops,” she said.

The warning is the second from the electricity system operator in recent weeks. In mid-September the company issued an official warning to the electricity market as peak power prices climbed, that its ‘buffer’ of power reserves had fallen below 500MW and it may need to call on more power plants to help prevent a blackout. The notice was later withdrawn.

Concerns over National Grid’s electricity supplies have been relatively rare in recent years. It was forced in November 2015 to ask businesses to cut their demand as a “last resort” measure to keep the lights on after a string of coal plant breakdowns.

But since then, National Grid’s greater challenge has been an oversupply of electricity, partly due to record wind generation, which has threatened to overwhelm the grid during times of low electricity demand.

National Grid has already spent almost £1bn on extra measures to prevent blackouts over the first half of the year by paying generators to produce less electricity during the coronavirus lockdown, as daily demand fell.

The company paid wind farms to turn off, and EDF Energy to halve the nuclear generation from its Sizewell B nuclear plant, to avoid overwhelming the grid when demand for electricity fell by almost a quarter from last year.

The electricity supply squeeze comes a little over a year after National Grid left large parts of England and Wales without electricity after the biggest blackout in a decade left a million homes in the dark. National Grid blamed a lightning strike for the widespread power failure.

Similar supply strains have recently caused power cuts in China, underscoring how weather and generation mix can trigger blackouts.

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FERC Grid Resiliency Pricing Opposition underscores industry groups, RTOs, and ISOs rejecting DOE's NOPR, warning against out-of-market subsidies for coal and nuclear, favoring competitive markets, reliability, and true grid resilience.

Key Points

Coalition urging FERC to reject DOE's NOPR subsidies, protecting reliability and competitive power markets.

✅ Industry groups, RTOs, ISOs oppose DOE NOPR

✅ PJM reports sufficient reliability and resilience

✅ Reject out-of-market aid to coal, nuclear

A diverse group of a dozen energy industry associations representing oil, natural gas, wind, solar, efficiency, and other energy technologies today submitted reply comments to the Federal Energy Regulatory Commission (FERC) continuing their opposition to the Department of Energy's (DOE) proposed rulemaking on grid resiliency pricing and electricity pricing changes within competitive markets, in the next step in this FERC proceeding.

Action by FERC, as lawmakers urge movement on aggregated DERs to modernize markets, is expected by December 11.

In these comments, this broad group of energy industry associations notes that most of the comments submitted initially by an unprecedented volume of filers, including grid operators whose markets would be impacted by the proposed rule, urged FERC not to adopt DOE'sproposed rule to provide out-of-market financial support to uneconomic coal and nuclear power plants in the wholesale electricity markets overseen by FERC.

Just a small set of interests - those that would benefit financially from discriminatory pricing that favors coal and nuclear plants - argued in favor of the rule put forward by DOE in its Notice of Proposed Rulemaking, or NOPR, as did coal and business interests in related regulatory debates. But even those interests - termed 'NOPR Beneficiaries' by the energy associations - failed to provide adequate justification for FERC to approve the rule, and their specific alternative proposals for implementing the bailout of these plants were just as flawed as the DOE plan, according to the energy industry associations.

'The joint comments filed today with partners across the energy spectrum reflect the overwhelming majority view that this proposed rulemaking by FERC is unprecedented and unwarranted, said Todd Foley, Senior Vice President, Policy & Government Affairs, American Council on Renewable Energy.

We're hopeful that FERC will rule against an anti-competitive distortion of the electricity marketplace and avoid new unnecessary initiatives that increase power prices for American consumers and businesses.'

In the new reply comments submitted in response to the initial comments filed by hundreds of stakeholders on or before October 23 - the energy industry associations made the following points: Despite hundreds of comments filed, no new information was brought forth to validate the assertion - by DOE or the NOPR Beneficiaries - that an emergency exists that requires accelerated action to prop up certain power plants that are failing in competitive electricity markets: 'The record in this proceeding, including the initial comments, does not support the discriminatory payments proposed' by DOE, state the industry groups.

Nearly all of the initial comments filed in the matter take issue with the DOE NOPR and its claim of imminent threats to the reliability and resilience of the electric power system, despite reports of coal and nuclear disruptions cited by some advocates: 'Of the hundreds of comments filed in response to the DOE NOPR, only a handful purported to provide substantive evidence in support of the proposal. In contrast, an overwhelming majority of initial comments agree that the DOE NOPR fails to substantiate its assertions of an immediate reliability or resiliency need related to the retirement of merchant coal-fired and nuclear generation.'

Grid operators filed comments refuting claims that the potential retirement of coal and nuclear plants which could not compete for economically present immediate or near-term challenges to grid management, even as a coal CEO criticism targeted federal decisions: 'Even the RTOs and ISOs themselves filed comments opposing the DOE NOPR, noting that the proposed cost-of-service payments to preferred generation would disrupt the competitive markets and are neither warranted nor justified.... Most notably, this includes PJM Interconnection, ... the RTO in which most of the units potentially eligible for payments under the DOE NOPR are located. PJM states that its region 'unquestionably is reliable, and its competitive markets have for years secured commitments from capacity resources that well exceed the target reserve margin established to meet [North American Electric Reliability Corp.] requirements.' And PJM analysis has confirmed that the region's generation portfolio is not only reliable, but also resilient.'

The need for NOPR Beneficiaries to offer alternative proposals reflects the weakness of DOE'srule as drafted, but their options for propping up uneconomic power plants are no better, practically or legally: 'Plans put forward by supporters of the power plant bailout 'acknowledge, at least implicitly, that the preferential payment structure proposed in the DOE NOPR is unclear, unworkable, or both. However, the alternatives offered by the NOPR Beneficiaries, are equally flawed both substantively and procedurally, extending well beyond the scope of the DOE NOPR.'

Citing one example, the energy groups note that the detailed plan put forward by utility FirstEnergy Service Co. would provide preferential payments far more costly than those now provided to individual power plants needed for immediate reasons (and given a 'reliability must run' contract, or RMR): 'Compensation provided under [FirstEnergy's proposal] would be significantly expanded beyond RMR precedent, going so far as to include bailing [a qualifying] unit out of debt based on an unsupported assertion that revenues are needed to ensure long-term operation.'

Calling the action FERC would be required to take in adopting the DOE proposal 'unprecedented,' the energy industry associations reiterate their opposition: 'While the undersigned support the goals of a reliable and resilient grid, adoption of ill-considered discriminatory payments contemplated in the DOE NOPR is not supportable - or even appropriate - from a legal or policy perspective.

About ACORE

The American Council on Renewable Energy (ACORE) is a national non-profit organization leading the transition to a renewable energy economy. With hundreds of member companies from across the spectrum of renewable energy technologies, consumers and investors, ACORE is uniquely positioned to promote the policies and financial structures essential to growth in the renewable energy sector. Our annual forums in Washington, D.C., New York and San Franciscoset the industry standard in providing important venues for key leaders to meet, discuss recent developments, and hear the latest from senior government officials and seasoned experts.

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TotalEnergies Africa Energy Strategy 2025 spotlights oil, gas, LNG, and renewables, with investments in Namibia, Congo, Mozambique, Uganda, Morocco, and South Africa, driving upstream growth, clean energy, and energy transition partnerships.

Key Points

An investment roadmap uniting oil, gas, LNG, and renewables to speed Africa's upstream growth and energy transition.

✅ Keynote by Mike Sangster at IAE Paris 2025.

✅ Oil, gas, LNG projects across Namibia, Congo, Mozambique, Uganda.

✅ Scaling renewables: solar, wind, green ammonia for export.

Mike Sangster, Senior Vice President for Africa at TotalEnergies, will play a pivotal role in the upcoming Invest in African Energy (IAE) Forum, which will take place in Paris on May 13-14, 2025. As a key figure in one of the world’s largest energy companies, Sangster's participation in the forum is expected to offer crucial insights into Africa’s evolving energy landscape, particularly in the areas of oil, gas, and renewable energy.

TotalEnergies' Role in Africa's Energy Landscape

TotalEnergies has long been a major player in Africa’s energy sector, driving development across both emerging and established markets. The company has a significant footprint in countries such as Namibia, the Republic of Congo, Libya, Mozambique, Uganda, and South Africa. TotalEnergies’ investments span both traditional oil and gas projects as well as renewable energy initiatives, reflecting its commitment to a more diversified energy future for Africa.

In Namibia, for instance, TotalEnergies is advancing its Venus-1 discovery, with plans to produce its first oil by the end of the decade. The company is also heavily involved in the Orange Basin exploration. Meanwhile, in the Republic of Congo, TotalEnergies is investing $600 million to enhance deepwater production at its Moho Nord field.

Beyond oil and gas, the company is expanding its renewable energy portfolio across the continent. This includes significant solar, wind, and hydropower projects, such as the 500 MW Sadada solar project in Libya, a 216 MW solar plant with battery storage in South Africa, and a 1 GW wind and solar project in Morocco designed to produce green ammonia for export.

The Invest in African Energy Forum

The IAE Forum, which TotalEnergies’ Sangster will headline, is an exclusive event aimed at facilitating investment between African energy markets and global investors, including discussions on COVID-19 funding for electricity access mechanisms that emerged, and their relevance to current capital flows. With a focus on fostering partnerships and discussions about the future of energy in Africa, the event will bring together industry experts, project developers, investors, and policymakers for two days of intensive engagement.

The forum will also serve as a crucial platform for sharing perspectives on the role of private investment, as outlined in the IEA investment outlook for Africa's power systems, in Africa’s energy future, strategies for unlocking new upstream opportunities, and the transition to a more sustainable energy system. This makes Sangster's participation, as someone directly involved in both conventional and renewable energy projects across the continent, particularly significant.

TotalEnergies' Diversified Strategy in Africa

Sangster’s keynote address and participation in an exclusive fireside chat will provide an in-depth look into TotalEnergies’ strategy for Africa. His insights will touch upon the company's ongoing projects in the oil and gas sectors, as well as its renewable energy investments. TotalEnergies has committed to making its portfolio more sustainable, underscored by its recent VSB acquisition to expand renewables capabilities, while continuing to be a leader in the energy transition.

One of the company’s notable projects is the Mozambique LNG initiative, a $20 billion venture aimed at supplying liquefied natural gas to international markets. Additionally, TotalEnergies is gearing up for the first oil from its Tilenga field in Uganda, which will be transported through the East African Crude Oil Pipeline (EACOP), the longest heated crude oil pipeline in the world.

In South Africa, TotalEnergies is constructing one of the largest renewable energy projects, a 216 MW solar power plant with integrated battery storage. This project is expected to significantly contribute to the country’s clean energy ambitions. Furthermore, in Morocco, TotalEnergies is developing a major wind and solar facility that will produce green ammonia, aligning with its broader strategy to provide solutions for Europe’s energy needs.

Africa’s Energy Transition

The forum’s timing could not be more critical, given the pressing need for an energy transition in Africa. While the continent remains heavily reliant on fossil fuels for its energy needs, there is growing momentum toward incorporating renewable energy sources, a point reinforced by the IRENA renewables report on decarbonisation and quality of life, which highlights the transformative potential. Africa’s vast natural resources, combined with global investments and partnerships, position the continent as a key player in the global shift toward sustainable energy.

However, Africa faces unique challenges in transitioning to renewable energy, reflecting a broader Sub-Saharan electricity challenge that also presents opportunity, across many markets. These challenges include a lack of infrastructure, financial constraints, and the need for increased political stability in certain regions. The IAE Forum provides an opportunity to address these barriers, with industry leaders like Sangster offering solutions based on real-world experiences and investments.

As the energy sector continues to evolve globally, and even if electricity systems are unlikely to go fully green this decade according to some outlooks, Africa's potential remains vast. The continent’s diverse energy resources, from oil and gas to renewables, offer a unique opportunity to build a more sustainable and resilient energy future. The Invest in African Energy Forum serves as an important platform for global stakeholders to collaborate, learn, and invest in the energy transformation taking place across the continent.

Mike Sangster’s insights at the forum will undoubtedly shape discussions on how companies like TotalEnergies are navigating the intersection of universal electricity access goals, sustainability, and economic growth in Africa. With Africa’s energy needs expected to increase exponentially in the coming decades, ensuring that these needs are met sustainably and equitably will be a priority for both policymakers and private investors.

As the global energy landscape continues to shift, the Invest in African Energy Forum provides a critical space for shaping the future of Africa’s energy sector, offering invaluable opportunities for investment, innovation, and collaboration.

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Bruce Power Capacity Uprate boosts nuclear output through generator stator upgrades, turbine and transformer enhancements, and cooling pump improvements at Bruce A and B, unlocking megawatts and efficiency gains from legacy heavy water design capacity.

Key Points

Upgrades that raise Bruce Power capacity via stator, turbine, transformer, and cooling enhancements.

✅ Generator stator replacement increases electrical conversion efficiency

✅ Turbine and transformer upgrades enable higher MW output

✅ Cooling pump enhancements optimize plant thermal performance

Bruce Power’s Unit 3 nuclear reactor will squeeze out an extra 22 megawatts of electricity, thanks to upgrades during its recent planned outage for refurbishment.

Similar gains are anticipated at its three sister reactors at Bruce A generating station, which presents the opportunity for the biggest efficiency gains and broader economic benefits for Ontario, due to a design difference over Bruce B’s four reactors, Bruce Power spokesman John Peevers said.

Bruce A reactor efficiency gains stem mainly from the fact Bruce A’s non-nuclear side, including turbines and the generator, was sized at 88 per cent of the nuclear capacity, Peevers said, while early Bruce C exploration work advances.

This allowed 12 per cent of the energy, in the form of steam, to be used for heavy water production, which was discontinued at the plant years ago. Heavy water, or deuterium, is used to moderate the reactors.

That design difference left a potential excess capacity that Bruce Power is making use of through various non-nuclear enhancements. But the nuclear operator, which also made major PPE donations during the pandemic, will be looking at enhancements at Bruce B as well, Peevers said.

Bruce Power’s efficiency gain came from “technology advancements,” including a “generator-stator improvement project that was integral to the uprate,” and contributed to an operating record at the site, a Bruce Power news release said July 11.

Peevers said the stationary coils and the associated iron cores inside the generator are referred to as the stator. The stator acts as a conductor for the main generator current, while the turbine provides the mechanical torque on the shaft of the generator.

“Some of the other things we’re working on are transformer replacement and cooling pump enhancements, backed by recent manufacturing contracts, which also help efficiency and contribute to greater megawatt output,” Peevers said.

The added efficiency improvements raised the nuclear operator’s peak generating capacity to 6,430 MW, as projects like Pickering life extensions continue across Ontario.

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London, Ontario Power Outage disrupts the electricity grid, causing a citywide blackout, stalled commuters, dark traffic signals, and closed businesses, as London Hydro crews race restoration after a transformer malfunction and infrastructure failures.

Key Points

A blackout caused by a transformer malfunction, disrupting commuters, businesses, and traffic across London, Ontario.

✅ Traffic signals dark; delays and congestion citywide

✅ London Hydro crews repairing malfunctioning transformer

✅ Businesses closed; transit routes delayed and rerouted

A widespread power outage early Monday morning left thousands of residents in London, Ontario, without electricity, causing significant disruption for commuters and businesses at the start of the workday. The outage, which affected several neighborhoods across the city, lasted for hours, creating a chaotic morning as residents scrambled to adjust to the unexpected interruption.

The Outage Strikes

The power failure was first reported at approximately 6:30 a.m., catching many off guard as they began their day. The affected areas included several busy neighborhoods, with power lines down and substations impacted, issues that windstorms often exacerbate for utilities. Early reports indicated that the outage was caused by a combination of issues, including technical failures and possible equipment malfunctions. London Hydro, the city's primary electricity provider, responded quickly to the situation, assuring residents that crews were dispatched to restore power as soon as possible.

"Crews are on site and working hard to restore power to those affected," a spokesperson for London Hydro said. "We understand the frustration this causes and are doing everything we can to get the power back on as soon as possible."

Impact on Commuters and Businesses

The power outage had an immediate impact on the morning commute. Traffic lights across the affected areas were down, leading to delays and rush-hour disruptions at major intersections. Drivers were forced to navigate through intersections without traffic control, creating an additional layer of complexity for those trying to get to work or school.

Public transit was also affected, with some bus routes delayed due to the power loss at key transit stations. The situation added further stress to commuters already dealing with the challenges of a typical Monday morning rush.

Businesses in the affected neighborhoods faced a variety of challenges. Some were forced to close early or delay their opening hours due to a lack of electricity. Many shops and offices struggled with limited access to the internet and phone lines, which hindered their ability to process orders and serve customers. Local coffee shops, often a go-to for busy workers, were also unable to operate their coffee machines or provide basic services, forcing customers to go without their usual morning caffeine fix.

"For a lot of people, it's their first stop in the morning," said one local business owner. "It’s frustrating because we rely on power to function, and with no warning, we had to turn away customers."

The Response

As the hours ticked by, residents were left wondering when the power would return. London Hydro’s social media accounts were filled with updates, keeping residents informed about the restoration efforts, a practice echoed when BC Hydro crews responded during an atypical storm. The utility company urged those who were experiencing issues to report them online to help prioritize repair efforts.

"We are aware that many people are affected, and our teams are working tirelessly to restore power," the utility posted on Twitter. "Please stay safe, and we thank you for your patience."

Throughout the morning, the power was gradually restored to different areas of the city. However, some parts remained without electricity well into the afternoon, a situation reminiscent of extended outages that test city resilience. London Hydro confirmed that the outage was caused by a malfunctioning transformer, and the necessary repairs would take time to complete.

Long-Term Effects and Community Concerns

While the immediate effects of the outage were felt most acutely during the morning hours, some residents expressed concern about the potential long-term effects. The city’s reliance on a stable electricity grid became a focal point of discussion, with many wondering if similar outages could occur in the future, as seen in the North Seattle outage earlier this year.

"I understand that things break, but it’s frustrating that it took so long for power to come back," said a London resident. "This isn’t the first time something like this has happened, and it makes me wonder about the reliability of our infrastructure."

City officials responded by reassuring residents that efforts are underway to upgrade the city's infrastructure to prevent such outages from happening in the future. A report released by London Hydro highlighted ongoing investments in upgrading transformers and other key components of the city's power grid. Province-wide, Hydro One restored power to more than 277,000 customers after damaging storms, underscoring the scale of upgrades needed. Despite these efforts, however, experts warn that older infrastructure in some areas may still be vulnerable to failure, especially during extreme weather events or other unforeseen circumstances.

The morning outage serves as a reminder of how reliant modern cities are on stable electricity networks. While the response from London Hydro was swift and effective in restoring power, it’s clear that these types of events can cause significant disruptions to daily life. As the city moves forward, many are calling for increased investment in infrastructure and proactive measures to prevent future outages, especially after Toronto outages persisted following a spring storm in the region.

In the meantime, Londoners have adapted, finding ways to go about their day as best they can. For some, it’s a reminder of the importance of preparedness in an increasingly unpredictable world. Whether it’s an extra flashlight or a backup power source, residents are learning to expect the unexpected and be ready for whatever the next workday might bring.

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