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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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NRC Special Inspection at River Bend reviews failures of portable emergency diesel generators, nuclear safety measures, and Entergy Operations actions after Fukushima; off-site power loss readiness, remote COVID-19 oversight, and corrective action plans are assessed.

Key Points

An NRC review of generator test failures at River Bend, assessing nuclear safety, root causes, and corrective actions.

✅ Evaluates failures of portable emergency diesel generators

✅ Reviews causal analyses and adequacy of corrective actions

✅ Remote COVID-19 oversight; public report expected within 45 days

The Nuclear Regulatory Commission has begun a special inspection at the River Bend nuclear power plant, part of broader oversight that includes the Turkey Point renewal application, to review circumstances related to the failure of five portable emergency diesel generators during testing. The plant, operated by Entergy Operations, is located in St. Francisville, La., as nations like France outage risks continue to highlight broader reliability concerns.

The generators are used to supply power to plant systems in the event of a prolonged loss of off-site electrical power coupled with a failure of the permanently installed emergency generators, a concern underscored by incidents such as the SC nuclear plant leak that shut down production for weeks. These portable generators were acquired as part of the facility's safety enhancements mandated by the NRC following the 2011 accident at the Fukushima Dai-ichi facility in Japan, and amid constraints like France limiting output from warm rivers, the emphasis on resilience remains.

The three-member NRC team will develop a chronology of the test failures and evaluate the licensee's causal analyses and the adequacy of corrective actions, informed by lessons from cases like Davis-Besse closure stakes that underscore risk management.

Due to the COVID-19 pandemic, they will complete most of their work remotely, while other regions address constraints such as high river temperatures limiting output for nuclear stations. An inspection report documenting the team's findings, released as global nuclear project milestones continue across the sector, will be publicly available within 45 days of the end of the inspection.
 

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Germany's Joint Onshore Wind and Solar Tender invites 200 MW bids in an EEG auction, with PV and onshore wind competing on price per MWh, including grid integration costs and network fees under BNA rules.

Key Points

A BNA-run 200 MW EEG auction where PV and onshore wind compete on price per MWh, including grid integration costs.

✅ 200 MW cap; minimum project size 750 kW

✅ Max subsidy 87.50 per MWh; bids include network costs

✅ Solar capped at 10-20 MW; wind requires prior approval

Germany's Federal Network Agency (BNA) has launched its second joint onshore wind and solar photovoltaic (PV) tender, with a total capacity of 200 MW.

A maximum guaranteed subsidy payment has been set at 87.50 per MWh for both energy sources, which BNA says will have to compete against each other for the lowest price of electricity. According to auction rules, all projects must have a minimum of 750 kW.

The auction is due to be completed on 2 November.

The network regulator has capped solar projects at 10 MW, though this has been extended to 20 MW in some districts, amid calls to remove barriers to PV at the federal level. Onshore wind projects did not receive any such restrictions, though they require approval from Federal Immission Control three weeks prior to the bid date of 11 Octobe

Bids also require network and system integration costs to be included, and similar solicitations have been heavily subscribed, as an over-subscribed Duke Energy solar solicitation in the US market illustrates.

According to Germanys Renewable Energy Act (EEG), two joint onshore wind and solar auctions must take place each year between 2018 and 2021. After this, the government will review the scheme and decide whether to continue it beyond 2021.

The first tender, conducted in April, saw the entire 200 MW capacity given to solar PV projects, reflecting a broader solar power boost in Germany during the energy crisis. Of the 32 contracts awarded, value varied from 39.60 per MWh to 57.60 per MWh. Among the winning bids were five projects in agricultural and grassland sites in Bavaria, totalling 31 MW, and three in Baden-Wrttemberg at 17 MW.

According to the Agency, the joint tender scheme was initiated in an attempt to determine the financial support requirements for wind and solar in technology-specific auctions, however, solar powers sole win in the April auction meant it was met with criticism, even as clean energy accounts for 50% of Germany's electricity today.

The heads of the Federal Solar Industry Association (BSW-Solar) and German Wind Energy Association (BWE) saying the joint tender scheme is unsuitable for the build-out of the two technologies.

A BWE spokesman previously stressed the companys rejection of competition between wind and solar, saying: It is not clear how this could contribute to an economically meaningful balanced energy mix,

Technologies that are in various stages of development must not enter into direct competition with each other. Otherwise, innovation and development potential will be compromised.

Similarly, BSW-Solar president Carsten Krnig said: We are happy for the many solar winners, but consider the experiment a failure. The auction results prove the excellent price-performance ratio of new solar power plants, as solar-plus-storage is cheaper than conventional power in Germany, but not the suitability of joint tenders.

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Ontario IESO Accounting Dispute highlights tensions over public sector accounting standards, auditor general oversight, electricity market transparency, KPMG advice, rate-regulated accounting, and an alleged $1.3B deficit understatement affecting Hydro bills and provincial finances.

Key Points

A PSAS clash between Ontario's auditor general and the IESO, alleging a $1.3B deficit impact and transparency failures.

✅ Auditor alleges deficit understated by $1.3B

✅ Dispute over PSAS vs US-style accounting

✅ KPMG support, transparency and co-operation questioned

The bad blood between the Ontario government and auditor general bubbled to the surface once again Monday, with the Liberal energy minister downplaying a dispute between the auditor and the Crown corporation that manages the province's electricity market, even as the government pursued legislation to lower electricity rates in the province.

Glenn Thibeault said concerns raised by auditor general Bonnie Lysyk during testimony before a legislative committee last week aren't new and the practices being used by the Independent Electricity System Operator are commonly endorsed by major auditing firms.

"(Lysyk) doesn't like the rate-regulated accounting. We've always said we've relied on the other experts within the field as well, plus the provincial controller," Thibeault said.

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"We believe that we are following public sector accounting standards."

Thibeault said that Ontario Power Generation, Hydro One and many other provinces and U.S. states use the same accounting practices.

"We go with what we're being told by those who are in the field, like KPMG, like E&Y," he said.

But a statement from Lysyk's office Monday disputed Thibeault's assessment.

"The minister said the practices being used by the IESO are common in other jurisdictions," the statement said.

"In fact, the situation with the IESO is different because none of the six other jurisdictions with entities similar to the IESOuse Canadian Public Sector Accounting Standards. Five of them are in the United States and use U.S. accounting standards."

Lysyk said last week that the IESO is using "bogus" accounting practices and her office launched a special audit of the agency late last year after the agency changed their accounting to be more in line with U.S. accounting, following reports of a phantom demand problem that cost customers millions.

Lysyk said the accounting changes made by the IESO impact the province's deficit, understating it by $1.3 billion as of the end of 2017, adding that IESO "stalled" her office when it asked for information and was not co-operative during the audit.

Lysyk's full audit of the IESO is expected to be released in the coming weeks and is among several accounting disputes her office has been engaged in with the Liberal government over the past few years.

Last fall, she accused the government of purposely obscuring the true financial impact of its 25% hydro rate cut by keeping billions in debt used to finance that plan off the province's books. Lysyk had said she would audit the IESO because of its role in the hydro plan's complex accounting scheme.

"Management of the IESO and the board would not co-operate with us, in the sense that they continually say they're co-operating, but they stalled on giving us information," she said last week.

Terry Young, a vice-president with the IESO, said the agency has fully co-operated with the auditor general. The IESO opened up its office to seven staff members from the auditor's office while they did their work.

"We recognize the work that she's doing and to that end we've tried to fully co-operate," he said. "We've given her all of the information that we can."

Young said the change in accounting standards is about ensuring greater transparency in transactions in the energy marketplace.

"It's consistent with many other independent electricity system operators are doing," he said.

Lysyk also criticized IESO's accounting firm, KPMG, for agreeing with the IESO on the accounting standards. She was critical of the firm billing taxpayers for nearly $600,000 work with the IESO in 2017, compared to their normal yearly audit fee of $86,500.

KPMG spokeswoman Lisa Papas said the accounting issues that IESO addressed during 2017 were complex, contributing to the higher fees.

The accounting practices the auditor is questioning are a "difference of professional judgement," she said.

"The standards for public sector organizations such as IESO are principles-based standards and, accordingly, require the exercise of considerable professional judgement," she said in a statement.

"In many cases, there is more than one acceptable approach that is compliant with the applicable standards."

Progressive Conservative energy critic Todd Smith said the government isn't being transparent with the auditor general or taxpayers, aligning with calls for cleaning up Ontario's hydro mess in the sector.

"Obviously, they have some kind of dispute but the auditor's office is saying that the numbers that the government is putting out there are bogus.

Those are her words," he said. "We've always said that we believe the auditor general's are the true numbers for the
province of Ontario."

NDP energy critic Peter Tabuns said the Liberal government has decided to "play with accounting rules" to make its books look better ahead of the spring election, despite warnings that electricity prices could soar if costs are pushed into the future.

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Ontario electricity shortage is looming, RBC and IESO warn, as EV electrification surges, Pickering nuclear faces delays, and gas plants backstop expiring renewables, raising GHG emissions and grid reliability concerns across the province.

Key Points

A projected supply shortfall as demand rises from electrification, expiring contracts, and delayed nuclear capacity.

✅ RBC warns shortages as early as 2026, significant by 2030

✅ IESO sees EV-driven demand; 5,000-15,000 MW by 2035

✅ Gas reliance boosts GHGs; Pickering life extension assessed

In a fit of ideological pique, Doug Ford’s government spent more than $200 million to scrap more than 700 green energy projects soon after winning the 2018 election, amid calls to make clean, affordable power a central issue, portraying them as “unnecessary and expensive energy schemes.”

A year later, then Associate Energy Minister Bill Walker defended the decision, declaring, “Ontario has an adequate supply of power right now.”

Well, life moves fast. At the time, scrapping the renewable energy projects was criticized as short-sighted and wasteful, raising doubts about whether Ontario was embracing clean power in a meaningful way. It seems especially so now as Ontario confronts the reality of being short of electricity in the coming years.

How short? A recent report by RBC calls the situation “urgent,” saying that Canada’s most populous province could face energy shortages as early as 2026. As contracts for non-hydro renewables and gas plants expire, the shortages could be “significant” by 2030, the bank report said, with grid greening costs adding to the challenge.

The Independent Electricity System Operator (IESO), which manages the electrical supply in Ontario, says demand for electricity could rise at rates not seen in many years, as the government moves to add new gas plants to boost capacity. “Economic growth coming out of the pandemic, along with electrification in many sectors, is driving energy use up,” the agency said in a December assessment.

The good news is that demand is being driven, in part, by the transition to “green” power – carbon-emission-free electricity – by sectors such as transportation and manufacturing. That will help reduce emissions. Yet meeting that demand presents some challenges, prompting the province to outline a plan to address growing needs across the system. The shift to electric vehicles alone is expected to cause a spike in demand starting in 2030. By 2035, the province could need an additional 5,000 to 15,000 megawatts of electricity, the IESO estimates.

It was perhaps no surprise then to see the province announce last week that it wants to delay the long-planned closing of the Pickering nuclear plant by a year to 2026, even as others note the station is slated to close as planned. Operations beyond that would require refurbishing the facility. The province said it’s taking a fresh look at whether that would make sense to extend its life by another 30 years.

In the interim, the province will be forced to dramatically ramp up its reliance on natural gas plants for electricity generation – and, as analysts warn, Ontario’s power mix could get dirtier even before new non-emitting capacity is built, and in the process, increase greenhouse gas emissions from the energy grid by 400 per cent. Broader electrification is expected to produce “significant” GHG emissions reductions in Ontario over the next two decades, according to the IESO. Still, it’s working at cross-purposes if your electric car is charged by electricity generated by fossil fuels.

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Global Energy Investment Decline risks future oil and electricity supply, says the IEA, as spending on upstream, coal plants, and grids falls while renewables, storage, and flexible generation lag in the energy transition.

Key Points

Multi-year cuts to oil, power, and grid spending that increase risks of future supply shortages and market tightness.

✅ IEA warns underinvestment risks oil supply squeeze

✅ China and India slow coal plant additions; renewables rise

✅ Batteries aid flexibility but cannot replace seasonal storage

An almost 20 per cent fall in global energy investment over the past three years could lead to oil and electricity shortages, as surging electricity demand persists, and there are concerns about whether current business models will encourage sufficient levels of spending in the future, according a new report.

The International Energy Agency’s second annual IEA benchmark analysis of energy investment found that while the world spent $US1.7 trillion ($2.2 trillion) on fossil-fuel exploration, new power plants and upgrades to electricity grids last year, with electricity investment surpassing oil and gas even as global energy investment was down 12 per cent from a year earlier and 17 per cent lower than 2014.

While the IEA said continued oversupply of oil and electricity globally would prevent any imminent shock, falling investment “points to a risk of market tightness and undercapacity at some point down the line’’.

The low crude oil price drove a 44 per cent drop in oil and gas investment between 2014 and 2016. It fell 26 per cent last year. It was due to falls in upstream activity and a slowdown in the sanctioning of conventional oilfields to the lowest level in more than 70 years.

“Given the depletion of existing fields, the pace of investment in conventional fields will need to rise to avoid a supply squeeze, even on optimistic assumptions about technology and the impact of climate policies on oil demand,’’ the IEA warned in its report released yesterday evening. “The energy transition has barely begun in several key sectors, such as transport and industry, which will continue to rely heavily on oil, gas and coal for the foreseeable future.’’

The fall in global energy spending also reflected declining investment in power generation, particularly from coal plants.

While 21 per cent of global ­energy investment was made by China in 2016, the world’s fastest growing economy had a 25 per cent decline in the commissioning of new coal-fired power plants, due largely to air pollution issues and investment in renewables.

Investment in new coal-fired plants also fell in India.

“India and China have slammed the brakes on coal-fired generation. That is the big change we have seen globally,’’ said ­Bruce Mountain a director at CME Australia.

“What it confirms is the ­pressures and the changes we are seeing in Australia, the restructuring of our energy supply, is just part of a global trend. We are facing the pressures more sharply in Australia because our power prices are very high. But that same shift in energy source in Australia are being mirrored internationally.’’ The IEA — a Paris-based adviser to the OECD on energy policy — also highlighted Australia’s reduced power reserves in its report and called for regulatory change to encourage greater use of renewables.

“Australia has one of the highest proportions of households with PV systems on their roof of any country in the world, and its ­electricity use in its National ­Electricity Market is spread out over a huge and weakly connected network,’’ the report said.

“It appears that a series of accompanying investments and regulatory changes are needed, including a plan to avoid supply threats, to use Australia’s abundant wind and solar potential: changing system operation methods and reliability procedures as well as investment into network capacity, flexible generation and storage.’’ The report found that in Australia there had been an increase in grid-scale installations mostly associated with large-scale solar PV plants.

Last month the Turnbull ­government revealed it was prepared to back the construction of new coal-fired power stations to prevent further shortfalls in electricity supplies, while the PM ruled out taxpayer-funded plants and declared it was open to using “clean coal” technology to replace existing generators.

He also pledged “immediate” ­action to boost the supply of gas by forcing exporters to divert ­production into the domestic ­market.

Since then technology billionaire Elon Musk has promised to solve South Australia’s energy ­issues by building the world’s largest lithium-ion battery in the state.

But the IEA report said batteries were unlikely to become a “one size fits all” single solution to ­electricity security and flexibility provision.

“While batteries are well-suited to frequency control and shifting hourly load, they cannot provide seasonal storage or substitute the full range of technical services that conventional plants provide to stabilise the system,’’ the report said.

“In the absence of a major technological breakthrough, it is most likely that batteries will complement rather than substitute ­conventional means of providing system flexibility. While conventional plants continue to provide essential system services, their business model is increasingly being called into question in ­unbundled systems.’’

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