Two TVA plants taken offline

By Knoxville News Sentinel


Protective Relay Training - Basic

Our customized live online or in‑person group training can be delivered to your staff at your location.

  • Live Online
  • 12 hours Instructor-led
  • Group Training Available
Regular Price:
$699
Coupon Price:
$599
Reserve Your Seat Today
With TVA already experiencing unprecedented fuel costs and buying more power than ever from outside suppliers, two TVA nuclear plants have been taken offline and two more are operating at 50 percent capacity at the agency's Watts Bar and Browns Ferry sites.

One unit at the Browns Ferry site in northern Alabama was pulled completely offline the morning of August 8 following the discovery of a leak in instrumentation used to monitor temperatures in the plant's main steam lines.

In an unrelated incident the day before, all three Browns Ferry units were reduced to 50 percent power following the failure of a transformer that supplies electricity to cooling tower equipment. Power was reduced in order to keep the temperature of water released from the plant into the river system within regulatory limits, said TVA spokesman John Moulton.

"We never exceeded the thermal limit, which is 90 degrees," Moulton said.

The Watts Bar plant was taken offline August 7 to repair a hydrogen leak inside the main generator that workers have been monitoring since August 1. Power has been decreased incrementally since that time, Moulton said, and with a recent cooling trend it was decided to bring the plant completely offline to make the repair.

Moulton would not say when the plants would be back in operation, calling that information proprietary.

At capacity, Browns Ferry can produce 3,440 megawatts of power, enough to supply 1.3 million homes. Watts Bar, near Spring City, Tenn., has a capacity of about 1,100 megawatts, supplying the equivalent of 650,000 homes. As a result of the outages, TVA has lost approximately 2,255 megawatts of generating capacity.

The shutdowns follow on the heels of an announcement by TVA that customers can expect a sizable increase in their fall electric bills because of spikes in the cost of coal and natural gas, which affect TVA's generating plants and the power it buys from outside suppliers. The agency also said the lingering drought has reduced the amount of hydropower that can be generated by TVA dams and that it has bought 11 percent more power on the open market than during the same period last year.

The financial impact of the most recent incidents won't be known until the outages are over, said Moulton. But a break in the August heat wave should help, he said.

Demand for power was expected to be about 26,200 megawatts, a drop from hotter days earlier in the week when demand ranged from 30,0000 to 31,000 megawatts, Moulton said.

"The fact that we don't have two nuclear units available of course isn't what it would be on a day of high demand," he said. "The price of power right now is about 15 to 20 percent lower than it was earlier in the week."

Moulton called the simultaneous mechanical issues at the plants "unusual" but said that planning for such outages is part of the business.

"You want to keep them to a minimum, but you take it into account," he said. "We know that we're going to have some unplanned shutdowns, and that's taken into account as far as how you're going to meet the demand."

Related News

Cheaper electricity rate for customers on First Nations not allowed, Manitoba appeal court rules

Manitoba Hydro Court Ruling affirms the Public Utilities Board exceeded its jurisdiction by ordering a First Nations rate class, overturning an electricity rates appeal tied to geography, poverty, and regulatory authority in Manitoba.

 

Key Points

A decision holding the PUB lacked authority to create a First Nations rate class, restoring uniform electricity pricing.

✅ Court says PUB exceeded jurisdiction creating on-reserve rate

✅ Equalized electricity pricing reaffirmed across Manitoba

✅ Geography, not poverty, found decisive in unlawful rate class

 

Manitoba Hydro was wrongly forced to create a new rate class for electricity customers living on First Nations, the Manitoba Court of Appeal has ruled. 

The court decided the Public Utilities Board "exceeded its jurisdiction" by mandating Indigenous customers on First Nations could have a different electricity rate from other Manitobans. 

The board made the order in 2018, which exempted those customers from the general rate increase that year of 3.6 per cent.

"The directive constituted the creation and implementation of general social policy, an area outside of the PUB's jurisdiction and encroaching into areas that are better suited to the federal and provincial government," says the decision, which was released Tuesday.

Hydro's appeal of the PUB's decision went to court earlier this year.

At the time, the Crown corporation acknowledged many Indigenous people on First Nations live in poverty, but it argued the Public Utilities Board was overstepping its authority in trying to address the issue by creating a new rate class.

It also argued it was against provincial law to charge different rates in different areas of the province.

The PUB, however, insisted that legislation gives it the right to decide which factors are relevant when considering electricity prices, such as social issues. 

Special Manitoba Hydro rate class needed to offset challenges of living on First Nations, appeal court hears
Manitoba Hydro can appeal order to create special First Nation rate
The board had heard evidence that some customers were making "unacceptable" sacrifices to keep the lights on each month.

Decision 'heavy-handed': AMC
The Assembly of Manitoba Chiefs, an intervener in the appeal, had backed the utility board's position. It said on-reserve customers are disproportionately vulnerable to rate hikes over time.

Grand Chief Arlen Dumas said Wednesday he was surprised by the court's ruling. 

He argued Indigenous people are unduly excluded in the setting of electricity rates in Manitoba.

"I will be speaking with my federal and provincial counterparts on how we deal with this issue, because I think it's the wrong [decision]. It's heavy-handed and we need to address it."

The appeal court judges said there is past precedent for setting equal electricity rates, regardless of where customers live. Legislation to that effect was made in the early 2000s and a few years ago, the PUB recognized that geographical limitations should not be imposed on a class of customers.

Since the board's new order didn't extend the same savings to First Nations members who don't live on reserve but face similar financial circumstances, it is clear the deciding factor was geography, rather than poverty or treaty status, the judges said.

Manitoba Hydro temporarily cutting 200 jobs, many of them front-line workers
"In my view, the PUB erred in law when it created an on-reserve class based solely on a geographic region of the province in which customers are located," the decision read.

While Manitoba Hydro objected to the PUB's order in 2018, it still devoted money to create the new customer class.

Spokesperson Bruce Owen said the utility is still studying the impact of the court's decision, but it appreciates the ruling.  

"We all recognize that many people on First Nations have challenges, but our argument was solely on whether or not the PUB had the authority to create a special rate class based on where people live."

Owen added that Hydro recognizes electricity rates can be a hardship on individuals facing poverty. He said those considerations are part of the discussions the corporation has with the utilities board.

 

Related News

View more

Looming Coal and Nuclear Plant Closures Put ‘Just Transition’ Concept to the Test

Just Transition for Coal and Nuclear Workers explains policy frameworks, compensation packages, retraining, and community support during decarbonization, plant closures, and energy shifts across Europe and the U.S., including Diablo Canyon and Uniper strategies.

 

Key Points

A policy approach to protect and retrain legacy power workers as coal and nuclear plants retire during decarbonization.

✅ Germany and Spain fund closures with compensation and retraining.

✅ U.S. lacks federal support; Diablo Canyon is a notable exception.

✅ Firms like Uniper convert coal sites to gas and clean energy roles.

 

The coronavirus pandemic has not changed the grim reality facing workers at coal and nuclear power plants in the U.S. and Europe. How those workers will fare in the years ahead will vary greatly based on where they live and the prevailing political winds.

In Europe, the retirement of aging plants is increasingly seen as a matter of national concern. Germany this year agreed to a €40 billion ($45 billion) compensation package for workers affected by the country's planned phaseout of coal generation by 2038, amid its broader exit from nuclear power as part of its energy transition. Last month the Spanish authorities agreed on a just transition plan affecting 2,300 workers across 12 thermal power plants that are due to close this year.

In contrast, there is no federal support plan for such workers in the U.S., said Tim Judson, executive director at the Maryland-based Nuclear Information and Resource Service, which lobbies for an end to nuclear and fossil-fuel power.

For all of President Donald Trump’s professed love of blue-collar workers in sectors such as coal, “where there are economic transitions going on, we’re terrible at supporting workers and communities,” Judson said of the U.S. Even at the state level, support for such workers is "almost nonexistent,” he said, “although there are a lot of efforts going on right now to start putting in place just transition programs, especially for the energy sector.”

One example that stands out in the U.S. is the support package secured for workers at utility PG&E's Diablo Canyon Power Plant, California's last operating nuclear power plant that is scheduled for permanent closure in 2025. “There was a settlement between the utility, environmental groups and labor unions to phase out that plant that included a very robust just transition package for the workers and the local community,” Judson said.

Are there enough clean energy jobs to replace those being lost?
Governments are more likely to step in with "just transition" plans where they have been responsible for plant closures in the first place. This is the case for California, Germany and Spain, all moving aggressively to decarbonize their energy sectors and pursue net-zero emissions policy goals.

Some companies are beginning to take a more proactive approach to helping their workers with the transition. German energy giant Uniper, for example, is working with authorities to save jobs by seeking to turn coal plants into lower-emissions gas-fired units.

Germany’s coal phaseout will force Uniper to shut down 1.5 gigawatts of hard-coal capacity by 2022, but the company has said it is looking at "forward-looking" options for its plants that "will be geared toward tomorrow's energy world and offer long-term employment prospects."

Christine Bossak, Uniper’s manager of external communications, told GTM this approach would be adopted in all the countries where Uniper operates coal plants.

Job losses are usually inevitable when a plant is closed, Bossak acknowledged. “But the extent of the reduction depends on the alternative possibilities that can be created at the site or other locations. We will take care of every single employee, should he or she be affected by a closure. We work with the works council and our local partners to find sustainable solutions.”

Diana Junquera Curiel, energy industry director for the global union federation IndustriALL, said such corporate commitments looked good on paper — but the level of practical support depends on the prevailing political sentiment in a country, as seen in Germany's nuclear debate over climate strategy.

Even in Spain, where the closure of coal plants was being discussed 15 years ago, a final agreement had to be rushed through at the last minute upon the arrival of a socialist government, Junquera Curiel said. An earlier right-wing administration had sat on the plan for eight years, she added.

The hope is that heel-dragging over just transition programs will diminish as the scale of legacy plant closures grows.

Nuclear industry facing a similar challenge as coal
One reason why government support is so important is there's no guarantee a burgeoning clean energy economy will be able to absorb all the workers losing legacy generation jobs. Although the construction of renewable energy projects requires large crews, it often takes no more than a handful of people to operate and maintain a wind or solar plant once it's up and running, Junquera Curiel observed.

Meanwhile, the job losses are unlikely to slow. In Europe, Austria and Sweden both closed their last coal-fired units recently, even as Europe loses nuclear capacity in key markets.

In the U.S., the Energy Information Administration's base-case prediction is that coal's share of power generation will fall from 24 percent in 2019 to 13 percent in 2050, while nuclear's will fall from 20 percent to 12 percent over that time horizon. The EIA has long underestimated the growth trajectory of renewables in the mix; only in 2020 did it concede that renewables will eventually overtake natural gas as the country's largest source of power.

The Institute for Energy Economics and Financial Analysis has predicted that even a coronavirus-inspired halt to renewables is unlikely to stop a calamitous drop in coal’s contribution to U.S. generation.

The nuclear sector faces a similar challenge as coal, albeit over a longer timeline. Last year saw the nuclear industry starting to lose capacity worldwide in what could be the beginning of a terminal decline, highlighted by Germany's shutdown of its last three reactors in 2023. Last week, the Indian Point Energy Center closed permanently after nearly half a century of cranking out power for New York City.*

“Amid ongoing debates over whether to keep struggling reactors online in certain markets, the industry position would be that governments should support continued operation of existing reactors and new build as part of an overall policy to transition to a sustainable clean energy system,” said Jonathan Cobb, senior communication manager at the World Nuclear Association.

If this doesn’t happen, plant workers will be hoping they can at least get a Diablo Canyon treatment. Based on the progress of just transition plans so far, that may depend on how they vote just as much as who they work for.

 

Related News

View more

SaskPower reports $205M income in 2019-20, tables annual report

SaskPower 2019-20 Annual Report highlights $205M net income, grid capacity upgrades, emissions reduction progress, Chinook Power Station natural gas baseload, and wind and solar renewable energy to support Saskatchewan's Growth Plan and Prairie Resilience.

 

Key Points

SaskPower's 2019-20 results: $205M income, grid upgrades, emissions cuts, and new gas baseload with wind and solar.

✅ $205M net income, up $8M year-over-year

✅ Chinook Power Station adds stable natural gas baseload

✅ Increased grid capacity enables more wind and solar

 

SaskPower presented its annual report on Monday, with a net income of $205 million in 2019-20, even as Manitoba Hydro's financial pressures highlight regional market dynamics.

This figure shows an increase of $8 million from 2018-19, despite record provincial power demand that tested the grid.

“Reliable, sustainable and cost-effective electricity is crucial to achieving the economic goals laid out in the Government of Saskatchewan’s Growth Plan and the emissions reductions targets outlined in Prairie Resilience, our made-in-Saskatchewan climate change strategy,” Minister Responsible for SaskPower Dustin Duncan said.

In the last year, SaskPower has repaired and upgraded old infrastructure, invested in growth projects and increased grid capacity, including plans to buy more electricity from Manitoba Hydro to support reliability and benefiting from new turbine investments across the region.

The utility is also exploring procurement partnerships, including a plan to purchase power from Flying Dust First Nation to diversify supply.

“During the past year, we continued to move toward our target to reduce carbon dioxide emissions 40 per cent from 2005 levels by 2030, as part of efforts to double renewable electricity by 2030 across Saskatchewan,” SaskPower President and CEO Mike Marsh said. “The newly commissioned natural gas-fired Chinook Power Station will provide a stable source of baseload power while enabling the ongoing addition of intermittent renewable generation capacity, and exploring geothermal power alongside wind and solar generation.”

 

Related News

View more

BC Hydro rebate and B.C. Affordability Credit coming as David Eby sworn in as premier

BC Affordability & BC Hydro Bill Credits provide inflation relief and cost of living support, lowering electricity bills for families and small businesses through automatic utility credits and income-tested tax rebates across British Columbia.

 

Key Points

BC relief lowering electricity bills and offering rebates to help families and businesses facing inflation.

✅ $100 credit for residential BC Hydro users; applied automatically.

✅ Avg $500 bill credit for small and medium commercial customers.

✅ Income-based BC Affordability Credit via CRA in January.

 

The new B.C. premier announced on Friday morning families and small businesses in B.C. will get a one-time cost of living credit on their BC Hydro bill this fall, and a new B.C. Affordability Credit in January.

Eby focused on the issue of affordability in his speech following being sworn in as B.C.’s 37th premier, including electricity costs addressed by BC Hydro review recommendations that aim to keep power affordable.

A BC Hydro bill credit of $100 will be provided to all eligible residential and commercial electricity customers, including those who receive their electricity service indirectly from BC Hydro through FortisBC or a municipal utility.

“People and small businesses across B.C. are feeling the squeeze of global inflation,” Eby said.

“It’s a time when people need their government to continue to be there for them. That’s why we’re focused on helping people most impacted by the rising costs we’re seeing around the world – giving people a bit of extra credit, especially at a time of year when expenses can be quick to add up.”

Eby takes over as premier of the province with a growing number of concerns piling up on his plate, even as the province advances grid development and job creation projects to support long-term growth.

Economists in the province have warned of turbulent economic times ahead due to global economic pressures and power supply challenges tied to green energy ambitions.

The one-time $100 cost of living credit works out to approximately one month of electricity for a family living in a detached home or more than two months of electricity for a family living in an apartment.

Commercial ratepayers, including small and medium businesses like restaurants and tourism operators, will receive a one-time bill credit averaging $500 as B.C. expands EV charging infrastructure to accelerate electrification.

The amount will be based on their prior year’s electricity consumption.

British Columbians will have the credit automatically applied to their electricity accounts.

BC Hydro customers will have the credit applied in early December. Customers of FortisBC and municipal utilities will likely begin to see their bill credits applied early in the new year.

‘I proudly and unreservedly turn to the tallest guy in the room’: John Horgan on David Eby

The B.C. Affordability Credit is separate and will be based on income.

Eligible people and families will automatically receive the new credit through the Canada Revenue Agency, the same way the enhanced Climate Action Tax Credit was received in October.

An eligible person making an income of up to $36,901 will receive the maximum BC Affordability Credit with the credit fully phasing out at $79,376.

An eligible family of four with a household income of $43,051 will get the maximum amount, with the credit fully phasing out by $150,051.

This additional support means a family of four can receive up to an additional $410 in early January 2023 to help offset some of the added costs people are facing, while EV owners can access more rebates for home and workplace charging to reduce transportation expenses.

“Look for B.C.’s new Affordability Credit in your bank account in January 2023,” Eby said.

“We know it won’t cover all the bills, but we hope the little bit extra helps folks out this winter.”

Eby’s swearing-in marks a change at the premier’s office but not a shift in focus.

The premier expects to continue on with former premier John Horgan’s mandate with a focus on affordability issues and clean growth supported by green energy investments from both levels of government.

In a ceremony held in the Musqueam Community Centre, Eby made a commitment to make meaningful improvements in the lives of British Columbians and continue work with First Nations communities, with clean-tech growth underscored by the B.C. battery plant announcement made with the prime minister.

The ceremony was the first-ever swearing-in hosted by a First Nation in British Columbia.

“British Columbia is a wonderful place to call home,” Eby said.

“At the same time, people are feeling uncertain about the future and worried about their families. I’m proud of the work done by John Horgan and our government to put people first. And there’s so much more to do. I’m ready to get to work with my team to deliver results that people will be able to see and feel in their lives and in their communities.”

 

Related News

View more

IAEA reactor simulators get more use during Covid-19 lockdown

IAEA Nuclear Reactor Simulators enable virtual nuclear power plant training on IPWR/PWR systems, load-following operations, baseload dynamics, and turbine coupling, supporting advanced reactor education, flexible grid integration, and low-carbon electricity skills development during remote learning.

 

Key Points

IAEA Nuclear Reactor Simulators are tools for training on reactor operations, safety, and flexible power management.

✅ Simulates IPWR/PWR systems with real-time parameter visualization.

✅ Practices load-following, baseload, and grid flexibility scenarios.

✅ Supports remote training on safety, controls, and turbine coupling.

 

Students and professionals in the nuclear field are making use of learning opportunities during lockdown made necessary by the Covid-19 pandemic, drawing on IAEA low-carbon electricity lessons for the future.

Requests to use the International Atomic Energy Agency’s (IAEA’s) basic principle nuclear reactor simulators have risen sharply in recent weeks, IAEA said on 1 May, as India takes steps to get nuclear back on track. New users will have the opportunity to learn more about operating them.

“This suite of nuclear power plant simulators is part of the IAEA education and training programmes on technology development of advanced reactors worldwide. [It] can be accessed upon request by interested parties from around the world,” said Stefano Monti, head of the IAEA’s Nuclear Power Technology Development Section.

Simulators include several features to help users understand fundamental concepts behind the behaviour of nuclear plants and their reactors. They also provide an overview of how various plant systems and components work to power turbines and produce low-carbon electricity, while illustrating roles beyond electricity as well.

In the integral pressurised water reactor (IPWR) simulator, for instance, a type of advanced nuclear power design, users can navigate through several screens, each containing information allowing them to adjust certain variables. One provides a summary of reactor parameters such as primary pressure, flow and temperature. Another view lays out the status of the reactor core.

The “Systems” screen provides a visual overview of how the plant’s main systems, including the reactor and turbines, work together. On the “Controls” screen, users can adjust values which affect reactor performance and power output.

This simulator provides insight into how the IPWR works, and also allows users to see how the changes they make to plant variables alter the plant’s operation. Operators can also perform manoeuvres similar to those that would take place in the course of real plant operations e.g. in load following mode.

“Currently, most nuclear plants operate in ‘baseload’ mode, continually generating electricity at their maximum capacity. However, there is a trend of countries, aligned with green industrial revolution strategies, moving toward hybrid energy systems which incorporate nuclear together with a diverse mix of renewable energy sources. A greater need for flexible operations is emerging, and many advanced power plants offer standard features for load following,” said Gerardo Martinez-Guridi, an IAEA nuclear engineer who specialises in water-cooled reactor technology.

Prospective nuclear engineers need to understand the dynamics of the consequences of reducing a reactor’s power output, for example, especially in the context of next-generation nuclear systems and emerging grids, and simulators can help students visualise these processes, he noted.

“Many reactor variables change when the power output is adjusted, and it is useful to see how this occurs in real-time,” said Chirayu Batra, an IAEA nuclear engineer, who will lead the webinar on 12 May.

“Users will know that the operation is complete once the various parameters have stabilised at their new values.”

Observing and comparing the parameter changes helps users know what to expect during a real power manoeuvre, he added.

 

Related News

View more

Construction starts on disputed $1B electricity corridor

New England Clean Energy Connect advances despite court delays, installing steel poles on a Maine corridor for Canadian hydropower, while legal challenges seek environmental review; permits, jobs, and grid upgrades drive the renewable transmission project.

 

Key Points

An HV line in Maine delivering 1,200 MW of Canadian hydropower to New England to cut emissions and stabilize costs.

✅ Appeals court pauses 53-mile new section; upgrades continue

✅ 1,200 MW hydropower aims to cut emissions, stabilize rates

✅ Permits issued; environmental review litigation ongoing

 

Construction on part of a $1 billion electricity transmission corridor through sparsely populated woods in western Maine is on hold because of legal action, echoing Clean Line's Iowa withdrawal amid court uncertainty, but that doesn't mean all building has been halted.

Workers installed the first of 829 steel poles Tuesday on a widened portion of the existing corridor that is part of the project near The Forks, as the groundwork is laid for the 145-mile ( 230-kilometre ) New England Clean Energy Connect, a project central to Maine's debate over the 145-mile line moving forward.

The work is getting started even though the 1st U.S. Circuit Court of Appeals delayed construction of a new 53-mile ( 85-kilometre ) section.

Three conservation groups are seeking an injunction to delay the project while they sue to force the U.S. Army Corps of Engineers to conduct a more rigorous environmental review.

In western Maine, workers already have staged heavy equipment and timber “mats” that will be used to prevent the equipment from damaging the ground. About 275 Maine workers already have been hired, and more would be hired if not for the litigation, officials said.

“This project has always promised to provide an economic boost to Maine’s economy, and we are already seeing those benefits take shape," Thorn Dickinson, CEO of the New England Clean Energy Connect, said Tuesday.

The electricity transmission line would provide a conduit for up to 1,200 megawatts of Canadian hydropower, reducing greenhouse emissions and stabilizing energy costs in New England as states pursue Connecticut's market overhaul to improve market design, supporters say.

The project, which would be fully funded by Massachusetts ratepayers to meet the state's clean energy goals after New Hampshire rejected a Quebec-Massachusetts proposal elsewhere, calls for construction of a high-voltage power line from Mount Beattie Township on the Canadian border to the regional power grid in Lewiston, Maine.

Critics have been trying to stop the project, reflecting clashes over New Hampshire hydropower in the region, saying it would destroy wilderness in western Maine. They also say that the environmental benefits of the project have been overstated.

In addition to the lawsuit, opponents have submitted petitions seeking to have a statewide vote, even as a Maine court ruling on Hydro-Quebec exports has reshaped the legal landscape.

Sandi Howard, a leading opponent of the project, said the decision by the company to proceed showed “disdain for everyday Mainers” by ignoring permit appeals and ongoing litigation.

“For years, CMP has pushed the false narrative that their unpopular and destructive project is a ‘done deal’ to bully Mainers into submission on this for-profit project. But to be clear, we won’t stop until Maine voters (their customers), have the chance to vote,” said Howard, who led the referendum petition drive for the No CMP Corridor PAC.

The project has received permits from the Army Corps, Maine Department of Environmental Protection, Maine Land Use Planning Commission and Maine Public Utilities Commission.

The final approval came in the form of a presidential permit issued last month from the U.S. Department of Energy, providing green light for the interconnect at the Canadian border, even as customer backlash to utility acquisitions elsewhere underscores public scrutiny.

 

Related News

View more

Sign Up for Electricity Forum’s Newsletter

Stay informed with our FREE Newsletter — get the latest news, breakthrough technologies, and expert insights, delivered straight to your inbox.

Electricity Today T&D Magazine Subscribe for FREE

Stay informed with the latest T&D policies and technologies.
  • Timely insights from industry experts
  • Practical solutions T&D engineers
  • Free access to every issue

Download the 2025 Electrical Training Catalog

Explore 50+ live, expert-led electrical training courses –

  • Interactive
  • Flexible
  • CEU-cerified