Enviro group seeks federal help in coal project

By Associated Press


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Federal regulators should block a proposed coal drying plant in southwestern North Dakota because it does not have a state mining permit, an environmental group contends.

The plant, which is being developed by GTL Energy USA Ltd., would process lignite into briquettes and increase its energy value by removing water from the coal. Lignite, used to fuel electric power plants, normally has water content of 30 percent or more.

North Dakota's Public Service Commission informed GTL Energy in August that the project did not need a mining permit. It is to be near South Heart, in Stark County, where two other companies are developing a new mine and factory to turn coal into synthetic gas.

Lawyers for the Dakota Resource Council, of Dickinson, wrote a letter to the Office of Surface Mining in Denver, asking the federal agency to block any construction until regulatory questions are answered.

The Public Service Commission's conclusion that the coal drying plant does not need a mining permit "is in error, contrary to plainly stated law and (federal) regulations, and therefore warrants immediate... review and intervention," the letter says.

The commission did not provide public notice or hold a hearing before it made its decision, the attorneys said. Their letter asks the Office of Surface Mining to respond next week because the attorneys believe construction of the coal-drying project is about to begin.

Robert French, the president of GTL Energy USA Ltd., did not respond immediately to an e-mailed request for comment. The company's chief financial officer, Blake Williams, said the dispute was between the Dakota Resource Council and state regulators.

"GTL Energy has complied with all regulatory requirements to date and will continue to cooperate with all applicable authorities," Williams said in an e-mail message.

Susan Wefald, the Public Service Commission's president, said the commission decided in a separate case last year that a coal drying operation did not require a state mining permit.

In that instance, Great River Energy and the North American Coal Corp. had formed a joint venture to dry lignite for use in Great River's Coal Creek electric power station, PSC filings say.

The drying facility was on the grounds of the Coal Creek plant. A North American subsidiary, the Falkirk Mining Co., supplies lignite to Coal Creek.

In GTL's case, Jim Deutsch, the PSC's land reclamation director, applied the same reasoning in determining the company's coal drying plant did not require a mining permit, Wefald said.

Deutsch said the plant will not be operated in connection with the proposed new coal mine near South Heart, and is not considered a coal preparation facility. The factory may dry coal from other mines besides the proposed South Heart mine, Deutsch said.

The Dakota Resource Council lawyers, Carrie La Seur, president of Plains Justice, of Cedar Rapids, Iowa, and Brad Bartlett, a managing attorney for the Energy Minerals Law Center of Durango, Colo., disputed the PSC's conclusions.

A federal rule "clearly (requires) permitting of coal processing facilities at mine sites," the attorneys said in their letter to the Office of Surface Mining.

The developers of the coal gasification factory, Great Northern Power Development LP and Allied Syngas Corp., hired GTL Energy last April to provide the coal drying technology for their plant.

The process, which is called beneficiation, increases the coal's energy value and allows it to burn more cleanly, project officials say. Water extracted from the lignite will also be used in the gasification plant's operation, officials say.

Richard Voss, a Great Northern Power Development executive who has been a spokesman for the gasification project, did not respond Friday to telephone and e-mailed requests for comment.

GTL Energy USA Ltd. is a unit of GTL Energy Ltd. of Adelaide, South Australia. Allied Syngas is part of Allied Resource Corp., of Wayne, Pa. Great Northern Power Development LP is based in Houston.

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Blackout-Prone California Is Exporting Its Energy Policies To Western States, Electricity Will Become More Costly And Unreliable

California Blackouts expose grid reliability risks as PG&E deenergizes lines during high winds. Mandated solar and wind displace dispatchable natural gas, straining ISO load balancing, transmission maintenance, and battery storage planning amid escalating wildfire liability.

 

Key Points

California grid shutoffs stem from wildfire risk, renewables, and deferred transmission maintenance under mandates.

✅ PG&E deenergizes lines to reduce wildfire ignition during high winds.

✅ Mandated solar and wind displace dispatchable gas, raising balancing costs.

✅ Storage, reliability pricing, and grid upgrades are needed to stabilize supply.

 

California is again facing widespread blackouts this season. Politicians are scrambling to assign blame to Pacific Gas & Electric (PG&E) a heavily regulated utility that can only do what the politically appointed regulators say it can do. In recent years this has meant building a bunch of solar and wind projects, while decommissioning reliable sources of power and scrimping on power line maintenance and upgrades.

The blackouts are connected with the legal liability from old and improperly maintained power lines being blamed for sparking fires—in hopes that deenergizing the grid during high winds reduces the likelihood of fires. 

How did the land of Silicon Valley and Hollywood come to have developing world electricity?

California’s Democratic majority, from Gov. Gavin Newsom to the solidly progressive legislature, to the regulators they appoint, have demanded huge increases in renewable energy. Renewable electricity targets have been pushed up, and policymakers are weighing a revamp of electricity rates to clean the grid, with the state expected to reach a goal of 33% of its power from renewable sources, mostly solar and wind, by next year, and 60% of its electricity from renewables by 2030.

In 2018, 31% of the electricity Californians purchased at the retail level came from approved renewables. But when rooftop solar is added to the mix, about 34% of California’s electricity came from renewables in 2018. Solar photovoltaic (PV) systems installed “behind-the-meter” (BTM) displace utility-supplied generation, but still affect the grid at large, as electricity must be generated at the moment it is consumed. PV installations in California grew 20% from 2017 to 2018, benefiting from the state’s Self-Generation Incentive Program that offers hefty rebates through 2025, as well as a 30% federal tax credit.

Increasingly large amounts of periodic, renewable power comes at a price—the more there is, the more difficult it is to keep the power grid stable and energized. Since electricity must be consumed the instant it is generated, and because wind and solar produce what they will whenever they do, the rest of the grid’s power producers—mostly natural gas plants—have to make up any differences between supply and immediate demand. This load balancing is vital, because without it, the grid will crash and widespread blackouts will ensue.

California often produces a surplus of mandated solar and wind power, generated for 5 to 8 cents per kilowatt hour. This power displaces dispatchable power from natural gas, coal and nuclear plants, resulting in reliable power plants spending less time online and driving up electricity prices as the plants operate for fewer hours of the day. Subsidized and mandated solar power, along with a law passed in California in 2006 (SB 1638) that bans the renewal of coal-fired power contracts, has placed enormous economic pressure on the Western region’s coal power plants—among them, the nation’s largest, Navajo Generating Station. As these plants go off line, the Western power grid will become increasingly unstable. Eventually, the states that share their electric power in the Western Interconnect may have to act to either subsidize dispatchable power or place a value on reliability—something that was taken for granted in the growth of the America’s electrical system and its regulatory scheme.

California law regarding electricity explicitly states that “a violation of the Public Utilities Act is a crime” and that it is “…the intent of the Legislature to provide for the evolution of the ISO (California’s Independent System Operator—the entity that manages California’s grid) into a regional organization to promote the development of regional electricity transmission markets in the western states.” In other words, California expects to dictate how the Western grid operates.

One last note as to what drives much of California’s energy policy: politics. California State Senator Kevin de León (the author served with him in the State Assembly) drafted SB 350, the Clean Energy and Pollution Reduction Act. It became law in 2015. Sen. de León followed up with SB 100 in 2018, signed into law weeks before the 2018 election. SB 100 increased California’s renewable portfolio standard to 60% by 2030 and further requires all the state’s electricity to come from carbon-free sources by 2045, a capstone of the state’s climate policies that factor into the blackout debate.  

Sen. de León used his environmental credentials to burnish his run for the U.S. Senate against Sen. Dianne Feinstein, eventually capturing the endorsements of the California Democratic Party and billionaire environmentalist Tom Steyer, now running for president. Feinstein and de León advanced to the general in California’s jungle primary, where Feinstein won reelection 54.2% to 45.8%.

De León may have lost his race for the U.S. Senate, but his legacy will live on in increasingly unaffordable electricity and blackouts, not only in California, but in the rest of the Western United States—unless federal or state regulators begin to place a value on reliability. This could be done by requiring utility scale renewable power providers to guarantee dispatchable power, as policymakers try to avert a looming shortage of firm capacity, either through purchase agreements with thermal power plants or through the installation of giant and costly battery farms or other energy storage means.

 

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Energy groups warn Trump and Perry are rushing major change to electricity pricing

DOE Grid Resilience Pricing Rule faces FERC review as energy groups challenge an expedited timeline to reward coal and nuclear for reliability in wholesale markets, impacting natural gas, renewables, baseload economics, and grid pricing.

 

Key Points

A DOE proposal directing FERC to compensate coal and nuclear plants for reliability attributes in wholesale markets.

✅ Industry coalition seeks normal FERC timeline and review

✅ Impacts wholesale pricing, baseload economics, reliability

✅ Request for 90-day comments and reply period

 

A coalition of 11 industry groups is pushing back on Energy Secretary Rick Perry's efforts to quickly implement a major change to the way electric power is priced in the United States.

The Energy Department on Friday proposed a rule that stands to bolster coal and nuclear power plants by forcing the regional markets that set electricity prices to compensate them for the reliability they provide. Perry asked the Federal Energy Regulatory Commission to consider and finalize the rule within 60 days, including a 45-day period during which stakeholders can issue comments.

On Monday, groups representing petroleum, natural gas, electric power and renewable energy interests including ACORE urged FERC to reject the expedited process, as well as the Department of Energy's request that the regulatory commission consider putting in place an interim rule.

They say the time frame is "aggressive" and the department didn't provide adequate justification for fast-tracking a process that could have huge impacts on wholesale electricity markets.

"This is one of the most significant proposed rules in decades related to the energy industry and, if finalized, would unquestionably have significant ramifications for wholesale markets under the Commission's jurisdiction," the groups said in the motion filed with FERC.

"The Energy Industry Associations urge the Commission to reject the proposed unreasonable timelines and instead proceed in a manner that would afford meaningful consideration of public comments and be consistent with the normal deliberative process that it typically affords such major undertakings," they said.

The groups are requesting a 90-day comment period, as well as another period for reply comments. FERC, which has authority to regulate interstate transmission and sale of electricity and natural gas, is not required to decide in favor of the rule but, amid a recent FERC decision that drew industry criticism, must consider it.

Expediting the process or imposing an interim rule is generally limited to emergencies, the groups said. The Energy Department's letter to FERC does not even attempt to establish that an immediate threat to U.S. electricity reliability exists, they allege.

 

  • A coalition of energy industry groups asked regulators to reject a rule proposed by the U.S. Department of Energy on Friday.
  • The rule would bolster coal-fired and nuclear power plants by requiring wholesale markets to compensate them for certain attributes.
  • The groups say the Energy Department proposed "unreasonable timelines" for stakeholders to offer feedback on a rule with "significant ramifications for wholesale markets."

 

The groups cite a recent Energy Department report on grid reliability that concluded: "reliability is adequate today despite the retirement of 11 percent of the generating capacity available in 2002, as significant additions from natural gas, wind, and solar have come online since then."

The Department of Energy did not return a request for comment.

The Energy Department's rule marks a flashpoint in the battle between natural gas-fired and renewable energy and so-called baseload power sources like coal and nuclear.

Separately, coal and business groups have supported the EPA in litigation over the Affordable Clean Energy rule, as documented in legal challenges brought during the rule's defense.

Gas, wind and solar power have eaten into coal and nuclear's share of U.S. electric power generation in recent years. That is thanks to a boom in U.S. gas production that has pushed down prices, the rapid adoption of subsidized renewable energy and President Barack Obama's efforts to mitigate emissions from power plants, which the Trump administration has sought to replace with a tune-up as policies shift.

Electric power is priced in deregulated, wholesale markets in many parts of the country. Utilities typically draw on the cheapest power sources first.

Some worry that the retirement of coal-fired and nuclear power plants undermines the nation's ability to reliably and affordably deliver electricity to households and businesses.

President Donald Trump has vowed to revive the ailing coal industry, declaring an end to the 'war on coal' in public remarks. Trump, Perry and other administration officials reject the consensus among climate scientists that carbon emissions from sources like coal-fired plants are the primary cause of global warming.

 

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State-sponsored actors 'very likely' looking to attack electricity supply, says intelligence agency

Canada Critical Infrastructure Cyber Risks include state-sponsored actors probing the electricity grid and ICS/OT, ransomware on utilities, and espionage targeting smart cities, medical devices, and energy networks, pre-positioning for disruptive operations.

 

Key Points

Nation-state and criminal cyber risks to Canada's power, water, and OT/ICS, aiming to disrupt, steal data, or extort.

✅ State-sponsored probing of power grid and utilities

✅ OT/ICS exposure grows as systems connect to IT networks

✅ Ransomware, espionage, and pre-positioning for disruption

 

State-sponsored actors are "very likely" trying to shore up their cyber capabilities to attack Canada's critical infrastructure — such as the electricity supply, as underscored by the IEA net-zero electricity report indicating rising demand for clean power, to intimidate or to prepare for future online assaults, a new intelligence assessment warns.

"As physical infrastructure and processes continue to be connected to the internet, cyber threat activity has followed, leading to increasing risk to the functioning of machinery and the safety of Canadians," says a new national cyber threat assessment drafted by the Communications Security Establishment.

"We judge that state-sponsored actors are very likely attempting to develop the additional cyber capabilities required to disrupt the supply of electricity in Canada, even as cleaning up Canada's electricity remains critical for climate goals."

Today's report — the second from the agency's Canadian Centre for Cyber Security wing — looks at the major cyber threats to Canadians' physical safety and economic security.

The CSE does say in the report that while it's unlikely cyber threat actors would intentionally disrupt critical infrastructure — such as water and electricity supplies — to cause major damage or loss of life, they would target critical organizations "to collect information, pre-position for future activities, or as a form of intimidation."

The report said Russia-associated actors probed the networks of electricity utilities in the U.S. and Canada last year and Chinese state-sponsored cyber threat actors have targeted U.S. utility employees. Other countries have seen their industrial control systems targeted by Iranian hacking groups and North Korean malware was found in the IT networks of an Indian power plant, it said.

The threat grows as more critical infrastructure goes high-tech.

In the past, the operational technology (OT) used to control dams, boilers, electricity and pipeline operations has been largely immune to cyberattacks — but that's changing as manufacturers incorporate newer information technology in their systems and products and as the race to net-zero drives grid modernization, says the report.

That technology might make things easier and lower costs for utilities already facing debates over electricity prices in Alberta amid affordability concerns, but it comes with risks, said Scott Jones, the head of the cyber centre.

"So that means now it is a target, it is accessible and it's vulnerable. So what you could see is shutting off of transmission lines, you can see them opening circuit breakers, meaning electricity simply won't flow to our homes to our business," he told reporters Wednesday.

While the probability of such attacks remains low, Jones said the goal of Wednesday's briefing is to send out the early warnings.

"We're not trying to scare people. We're certainly not trying to scare people into going off grid by building a cabin in the woods. We're here to say, 'Let's tackle these now while they're still paper, while they're still a threat we're writing down.'"

Steve Waterhouse, a former cybersecurity officer for the Department of National Defence who now teaches at Université de Sherbrooke, said a saving grace for Canada could be the makeup of its electrical systems.

"Since in Canada, they're very centralized, it's easier to defend, and debates about bridging Alberta and B.C. electricity aim to strengthen resilience, while down in the States, they have multiple companies all around the place. So the weakest link is very hard to identify where it is, but the effect is a cascading effect across the country ... And it could impact Canada, just like we saw in the big Northeastern power outage, the blackout of 2003," he said.

"So that goes to say, we have to be prepared. And I believe most energy companies have been taking extra measures to protect and defend against these type of attacks, even as Canada points to nationwide climate success in electricity to meet emissions goals."

In the future, attacks targeting so-called smart cities and internet-connected devices, such as personal medical devices, could also put Canadians at risk, says the report. 

Earlier this year, for example, Health Canada warned the public that medical devices containing a particular Bluetooth chip — including pacemakers, blood glucose monitors and insulin pumps — are vulnerable to cyber attacks that could crash them.

The foreign signals intelligence agency also says that while state-sponsored programs in China, Russia, Iran and North Korea "almost certainly" pose the greatest state-sponsored cyber threats to Canadian individuals and organizations, many other states are rapidly developing their own cyber programs.

Waterhouse said he was glad to see the government agency call out the countries by name, representing a shift in approach in recent years.

"To tackle on and be ready to face a cyber-attack, you have to know your enemy," he said.

"You have to know what's vulnerable inside of your organization. You have to know how ... vulnerable it is against the threats that are out there."


Commercial espionage continues
State-sponsored actors will also continue their commercial espionage campaigns against Canadian businesses, academia and governments — even as calls to make Canada a post-COVID manufacturing hub grow — to steal Canadian intellectual property and proprietary information, says the CSE.

"We assess that these threat actors will almost certainly continue attempting to steal intellectual property related to combating COVID-19 to support their own domestic public health responses or to profit from its illegal reproduction by their own firms," says the "key judgments" section of the report.

"The threat of cyber espionage is almost certainly higher for Canadian organizations that operate abroad or work directly with foreign state-owned enterprises."

The CSE says such commercial espionage is happening already across multiple fields, including aviation, technology and AI, energy and biopharmaceuticals.

While state-sponsored cyber activity tends to offer the most sophisticated threats, CSE said that cybercrime continues to be the threat most likely to directly affect Canadians and Canadian organizations, through vectors like online scams and malware.

"We judge that ransomware directed against Canada will almost certainly continue to target large enterprises and critical infrastructure providers. These entities cannot tolerate sustained disruptions and are willing to pay up to millions of dollars to quickly restore their operations," says the report.


Cybercrime becoming more sophisticated 
According to the Canadian Anti-Fraud Centre, Canadians lost over $43 million to cybercrime last year. The CSE reported earlier this year that online thieves have been using the COVID-19 pandemic to trick Canadians into forking over their money — through scams like a phishing campaign that claimed to offer access to a Canada Emergency Response Benefit payment in exchange for the target's personal financial details.

Online foreign influence activities — a dominant theme in the CSE's last threat assessment briefing — continue and constitute "a new normal" in international affairs as adversaries seek to influence domestic and international political events, says the agency.

"We assess that, relative to some other countries, Canadians are lower-priority targets for online foreign influence activity," it said.

"However, Canada's media ecosystem is closely intertwined with that of the United States and other allies, which means that when their populations are targeted, Canadians become exposed to online influence as a type of collateral damage."

According to the agency's own definition, "almost certainly" means it is nearly 100 per cent certain in its analysis, while "very likely" means it is 80-90 per cent certain of its conclusions. The CSE says its analysis is based off of a mix of confidential and non-confidential intelligence and sources. 

 

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City of Vancouver named Clean Energy Champion for Bloedel upgrades

BC Hydro Clean Energy Champions highlights Vancouver's Bloedel Conservatory electrification with a massive heat pump, clean electricity, LED lighting, deep energy efficiency, and 90% greenhouse gas reductions advancing climate action across buildings and industry.

 

Key Points

A BC Hydro program honoring clean electricity adoption in homes, transport, and industry to replace fossil fuels.

✅ Vancouver's Bloedel Conservatory cut GHGs by 90% with a heat pump

✅ LEDs and electrification boost efficiency, comfort, and reliability

✅ Nominations open for residents, businesses, and Indigenous groups

 

The City of Vancouver has been selected as BC Hydro’s first Clean Energy Champion for energy efficient upgrades made at the Bloedel Conservatory that cut greenhouse gas emissions by 90 per cent, a meaningful step given concerns about 2050 greenhouse gas targets in B.C.

BC Hydro’s Clean Energy Champions program is officially being launched today to recognize residents, businesses, municipalities, Indigenous and community groups across B.C. that have made the choice to switch from using fossil fuels to using clean electricity in three primary areas: homes and buildings, transportation, and industry, even as drought challenges power generation in B.C. The City of Vancouver is being recognized as the first champion for demonstrating its commitment to using clean energy, including power from projects like Site C's electricity, to fight climate change at its landmark Bloedel Conservatory.

Earlier this year, the City of Vancouver installed a large air source heat pump at Bloedel Conservatory – more than 50 times the size of a heat pump used in a typical B.C. home – that uses electricity instead of natural gas to heat and cool the dome's interior, which is home to more than 500 exotic plants and flowers, and 100 exotic birds, aligning with citywide debates such as Vancouver’s reversal on gas appliances policy. It is the biggest heat pump the City of Vancouver has ever installed, with 210 tonnes of cooling capacity.

A heat pump that provides cooling in the summer and heating in the winter, helping reduce reliance on wasteful air conditioning that can drive up energy bills, is ideal for the conservatory, as its dome is completely made of glass, which can be challenging for temperature regulation. While the dome experiences a lot of heat loss in the colder months, its need for cooling in warmer weather is even greater to ensure the safety of the wildlife and plants that call it home.

The clean energy upgrades do not end there though. All lighting in the building has been upgraded to energy-efficient LEDs, reflecting conservation themes highlighted by 2018 Earth Hour electricity use discussions, and outside colour-changing LEDs now surround the perimeter and light up the dome at night.

BC Hydro is calling for nominations from B.C. residents, businesses, municipalities or Indigenous and community groups that have taken steps to lower their carbon footprint and adopt new clean energy technologies, and continues to support customers through programs like its winter payment plan during colder months. If you or someone you know is a Clean Energy Champion, nominate them at bchydro.com/cleanenergychampions.

 

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Are major changes coming to your electric bill?

California Income-Based Electricity Rates propose a fixed monthly fee set by income as utilities and the CPUC weigh progressive pricing, aiming to cut low-income bills while PG&E, SCE, and SDG&E retain usage-based charges.

 

Key Points

CPUC plan adds income-tiered fixed fees to lower low-income bills while keeping per-kWh usage charges.

✅ Adds fixed monthly fees by income to complement per-kWh charges

✅ Cuts bills for low-income households; higher earners pay more

✅ Utilities say revenue neutral; conservation signals preserved

 

California’s electric bills — already some of the highest in the nation — are rising as electricity prices soar across the state, but regulators are debating a new plan to charge customers based on their income level. 

Typically what you pay for electricity depends on how much you use. But the state’s three largest electric utilities — Southern California Edison Company, Pacific Gas and Electric Company and San Diego Gas & Electric Company — have proposed a plan to charge customers not just for how much energy they use, but also based on their household income, moving toward income-based flat-fee utility bills over time. Their proposal is one of several state regulators received designed to accommodate a new law to make energy less costly for California’s lowest-income customers.

Some state Republican lawmakers are warning the changes could produce unintended results, such as weakening incentives to conserve electricity or raising costs for customers using solar energy, and some have introduced a plan to overturn the charges in the Legislature.

But the utility companies say the measure would reduce electricity bills for the lowest income customers. Those residents would save about $300 per year, utilities estimate.

California households earning more than $180,000 a year would end up paying an average of $500 more a year on their electricity bills, according to the proposal from utility companies. 

The California Public Utilities Commission’s deadline for deciding on the suggested changes is July 1, 2024, as regulators face calls for action from consumers and advocates. The proposals come at a time when many moderate and low-income families are being priced out of California by rising housing costs.  

Who wants to change the fee structure?
Lawmakers passed and Gov. Gavin Newsom signed a comprehensive energy bill last summer that mandates restructuring electricity pricing across the state. 

The Legislature passed the measure in a “trailer-bill” process that limited deliberation. Included in the 21,000-word law are a few sentences requiring the public utilities commission to establish a “fixed monthly fee” based on each customer’s household income. 

A similar idea was first proposed in 2021 by researchers at UC Berkeley and the nonprofit thinktank Next 10. Their main recommendation was to split utility costs into two buckets. Fixed charges, which everyone has to pay just to be connected to the energy grid, would be based on income levels. Variable charges would depend on how much electricity you use.

Utilities say that part of customers’ bills still will be based on usage, but the other portion will reduce costs for lower- and middle-income customers, who “pay a greater percentage of their income towards their electricity bill relative to higher income customers,” the utilities argued in a recent filing. 

They said the current billing system is unjust, regressive and fails to recognize differences in energy usage among households,

“When we were putting together the reform proposal, front and center in our mind were customers who live paycheck to paycheck, who struggle to pay for essentials such as energy, housing and food,” Caroline Winn, CEO of San Diego Gas & Electric in a statement. 

The utilities say in their proposal that the changes likely would not reduce or increase their revenues.

James Sallee, an associate professor at UC Berkeley, said the utilities’ prior system of billing customers mostly by measuring their electric use to pay for what are essentially fixed costs for power is inefficient and regressive. 

The proposed changes “will shift the burden, on average, to a more progressive system that recovers more from higher income households and less from lower income households,” he said.

 

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Bruce Power cranking out more electricity after upgrade

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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