Nuclear island excavation begins for foundation

US SF6 Emissions Decline as NOAA analysis and EPA mitigation show progress, with atmospheric measurements and Greenhouse Gas Reporting verifying reductions from the electric power grid; sulfur hexafluoride's extreme global warming potential underscores inventory improvements.

Key Points

A documented drop in US sulfur hexafluoride emissions, confirmed by NOAA atmospheric data and EPA reporting reforms.

✅ NOAA towers and aircraft show 2007-2018 decline

✅ EPA reporting and utility mitigation narrowed inventory gaps

✅ Winter leaks and servicing signal further reduction options

A new NOAA analysis shows U.S. emissions of the super-potent greenhouse gas sulfur hexafluoride (SF6) have declined between 2007-2018, likely due to successful mitigation efforts by the Environmental Protection Agency (EPA) and the electric power industry, with attention to SF6 in the power industry across global markets. 

At the same time, significant disparities that existed previously between NOAA’s estimates, which are based on atmospheric measurements, and EPA’s estimates, which are based on a combination of reported emissions and industrial activity, have narrowed following the establishment of the EPA's Greenhouse Gas Reporting Program. The findings, published in the journal Atmospheric Chemistry and Physics, also suggest how additional emissions reductions might be achieved. 

SF6 is most commonly used as an electrical insulator in high-voltage equipment that transmits and distributes electricity, and its emissions have been increasing worldwide as electric power systems expand, even as regions hit milestones like California clean energy surpluses in recent years. Smaller amounts of SF6 are used in semiconductor manufacturing and in magnesium production. 

SF6 traps 25,000 times more heat than carbon dioxide over a 100-year time scale for equal amounts of emissions, and while CO2 emissions flatlined in 2019 globally, that comparison underscores the potency of SF6. That means a relatively small amount of the gas can have a significant impact on climate warming. Because of its extremely large global warming potential and long atmospheric lifetime, SF6 emissions will influence Earth’s climate for thousands of years.

In this study, researchers from NOAA’s Global Monitoring Laboratory, as record greenhouse gas concentrations drive demand for better data, working with colleagues at EPA, CIRES, and the University of Maryland, estimated U.S. SF6 emissions for the first time from atmospheric measurements collected at a network of tall towers and aircraft in NOAA’s Global Greenhouse Gas Reference Network. The researchers provided an estimate of SF6 emissions independent from the EPA’s estimate, which is based on reported SF6 emissions for some industrial facilities and on estimated SF6 emissions for others.

“We observed differences between our atmospheric estimates and the EPA’s activity-based estimates,” said study lead author Lei Hu, a Global Monitoring Laboratory researcher who was a CIRES scientist at the time of the study. “But by closely collaborating with the EPA, we were able to identify processes potentially responsible for a significant portion of this difference, highlighting ways to improve emission inventories and suggesting additional emission mitigation opportunities, such as forthcoming EPA carbon capture rules for power plants, in the future.” 

In the 1990s, the EPA launched voluntary partnerships with the electric power, where power-sector carbon emissions are falling as generation shifts, magnesium, and semiconductor industries to reduce SF6 emissions after the United States recognized that its emissions were significant. In 2011, large SF6 -emitting facilities were required to begin tracking and reporting their emissions under the EPA Greenhouse Gas Reporting Program. 

Hu and her colleagues documented a decline of about 60 percent in U.S. SF6 emissions between 2007-2018, amid global declines in coal-fired power in some years—equivalent to a reduction of between 6 and 20 million metric tons of CO2 emissions during that time period—likely due in part to the voluntary emission reduction partnerships and the EPA reporting requirement. A more modest declining trend has also been reported in the EPA’s national inventories submitted annually under the United Nations Framework Convention on Climate Change. 

Examining the differences between the NOAA and EPA independent estimates, the researchers found that the EPA’s past inventory analyses likely underestimated SF6 emissions from electrical power transmission and distribution facilities, and from a single SF6 production plant in Illinois. According to Hu, the research collaboration has likely improved the accuracy of the EPA inventories. The 2023 draft of the EPA’s U.S. Greenhouse Gas Emissions and Sinks: 1990-2021 used the results of this study to support revisions to its estimates of SF6 emissions from electrical transmission and distribution. 

The collaboration may also lead to improvements in the atmosphere-based estimates, helping NOAA identify how to expand or rework its network to better capture emitting industries or areas with significant emissions, according to Steve Montzka, senior scientist at GML and one of the paper’s authors.

Hu and her colleagues also found a seasonal variation in SF6 emissions from the atmosphere-based analysis, with higher emissions in winter than in summer. Industry representatives identified increased servicing of electrical power equipment in the southern states and leakage from aging brittle sealing materials in the equipment in northern states during winter as likely explanations for the enhanced wintertime emissions—findings that suggest opportunities for further emissions reductions.

“This is a great example of the future of greenhouse gas emission tracking, where inventory compilers and atmospheric scientists work together to better understand emissions and shed light on ways to further reduce them,” said Montzka.

Related News

• Electricity Forum News

• Climate Change News

Entergy COVID-19 Emergency Relief Fund provides financial assistance to ALICE households, low-income seniors, and disabled customers via United Way grants for rent, mortgage, utilities, food, and bill payment support during COVID-19, alongside a disconnect moratorium.

Key Points

A shareholder-funded program offering essential grants and bill support to Entergy customers affected by COVID-19.

✅ Shareholders commit $700,000; grants distributed via United Way partners.

✅ Focus on ALICE families, low-income seniors, and disabled customers.

✅ Disconnects suspended; bill tools and LIHEAP advocacy underway.

In an effort to help working families experiencing financial hardships as a result of the coronavirus pandemic, the Entergy Charitable Foundation has established the COVID-19 Emergency Relief Fund, recognizing the need for electricity across communities.

"The health and safety of our customers, employees and communities is Entergy's top priority," said Leo Denault, chairman and CEO of Entergy Corporation. "For more than 100 years, Entergy has never wavered in our commitment to supporting our customers and the communities we serve. This pandemic is no different. During this challenging time, we are helping lessen the impact of this crisis on the most vulnerable in our communities. I strongly encourage our business partners to join us in this effort."

As devastating and disruptive as this crisis is for everyone, we know from past experience that those most heavily impacted are ALICE households (low-wage working families) and low-income elderly and disabled customers, who often face energy insecurity during such events - roughly 40%-50% of Entergy's customer base.

"We know from experience that working families and low-income elderly and disabled customers are hardest hit during times of crisis," said Patty Riddlebarger, vice president of Entergy's corporate social responsibility. "We are working quickly to make funds available to community partners that serve vulnerable households to lessen the economic impact of the COVID-19 crisis and ensure that families have the resources they need to get by during this time of uncertainty."

To support our most vulnerable customers, Entergy shareholders are committing $700,000 to the COVID-19 Emergency Relief Fund to help qualifying customers with basic needs such as food and nutrition, rent and mortgage assistance, and other critical needs, alongside measures like Texas utilities waiving fees that ease household costs, until financial situations become more stable. Grants from the fund will be provided to United Way organizations and other nonprofit partners across Entergy's service area that are providing services to impacted households.

Company shareholders will also match employee contributions to the COVID-19 relief efforts of local United Way organizations up to $100,000 to maximize impact.

In addition to establishing the COVID-19 Emergency Relief Fund, Entergy is taking additional steps to support and protect our customers during this crisis, similar to PG&E's pandemic response measures, including:

With support from our regulators, we are temporarily suspending customer disconnects, as seen in New Jersey and New York policies, as we continue to monitor the situation.

We are working with our network of community advocates, as the industry coordination with federal partners continues, to request a funding increase of the Low Income Home Energy Assistance Program to help alleviate financial hardships caused by COVID-19 on vulnerable households.

We are developing bill payment solutions and tools to help customers pay their accumulated balances once the disconnect moratorium is lifted.

Already in place to support vulnerable customers is Entergy's The Power to Care program, which provides emergency bill payment assistance to seniors and disabled individuals. To mark the 20th anniversary of Entergy's low-income customer initiative, the limit of shareholders' dollar for dollar match of customer donations was increased from $500,000 to $1 million per year. Shareholders continue to match employee donations dollar for dollar with no limit.

Related News

• Electricity Forum News

• Energy Policy News

Doug Ford's Hydro One firing vow targets CEO pay, the utility's board, and privatization, amid Ontario politics over electricity rates, governance, and control, raising questions about legal tools, contracts, and impacts on customers and taxpayers.

Key Points

Ford vows to oust Hydro One's CEO and board to curb pay and signal rate restraint, subject to legal and governance limits.

✅ Province lacks direct control post-privatization

✅ Possible board removals to influence executive pay

✅ Impact on rates, contracts, and shareholders unclear

Ontario PC Leader Doug Ford is vowing to fire the head of Hydro One, and its entire board if he's elected premier in June.

Ford made the announcement, calling President and CEO Mayo Schmidt, Premier "Kathleen Wynne's $6-Million dollar man," referring to his yearly salary and bonuses, which now add up to $6.2 million.

"This board and this CEO are laughing themselves to the bank," Ford said.

However, it's unclear how Ford would do that since the province does not control the company anymore.

"We don't have the ability to go out and say we are firing the CEO at Hydro One," PC energy critic Todd Smith said while speaking to reporters after Ford's remarks.

#google#

However, he said "we do have tools at our disposal in the tool box. The unfortunate thing is that Kathleen Wynne and the Liberals have just let those tools sit there for the last couple of years and [have] not taken action on things like this."

Smith declined to provide details about what those tools are, but suggested Ford would have the right to fire Hydro's board.

He said that would send a message "that we're not going to accept these salaries."

Smith says the Ontario gov still has the right to fire Hydro One board. What about their contracts? Pay them out? Smith says they don't know the details of people's contacts

We will not engage in politics,' Hydro One says

A Hydro One spokesperson said the amount customers pay to compensate the CEO's salary is the same as before privatization — two cents on each monthly bill.

"We will not engage in politics, however our customers deserve the facts," said the email statement to CBC Toronto.

"Nearly 80 per cent of the total executive compensation package is paid for by shareholders."

Ontario NDP MPP Peter Tabuns says Ford is pro-privatization, and that won't help those struggling with high hydro bills. (Michelle Siu/The Canadian Press)

Peter Tabuns, the NDP's energy critic, said his government would aim to retake public control of Hydro One to cap CEO pay and control the CEO's "outrageous salary."

But while he shares Ford's goal of cutting Schmidt's pay, Tabuns blasted what he believes would be the PC leader's approach.

"Doug Ford has no idea how to reign [sic] in the soaring hydro bills that Ontario families are facing — in fact, if his threats of further privatization include hydro, he'll drive bills and executive salaries ever higher," he said in an email statement.

The only plan we've heard from Doug Ford so far is firing people and laying off people.- Glenn Thibeault, Energy Minister

​Tabuns says his party would aim to cut hydro bills by 30 per cent.

Meanwhile, Liberal Energy Minister Glenn Thibeault said Ford's plan will do nothing to address the actual issue of keeping hydro rates low, comparing his statement Thursday to the rhetoric and actions of U.S. President Donald Trump.

"The only plan we've heard from Doug Ford so far is firing people and laying off people," Thibeault said.

"What I'm seeing a very strong prevalence to is the person running the White House. He's been doing a lot of firing as well and that's not been working out so well for them."

Wynne government has taken steps to cut hydro bills, including legislation to lower electricity rates in Ontario.

Hydro prices have shot up in recent years prompting criticism from across Ontario. Wynne made the controversial move of privatizing part of the utility beginning in 2015.

By Oct. 2017, the Ontario Liberal government's "Fair Hydro Plan" had brought down the average household electricity bill by a 25% rate cut from the peak it hit in the summer of 2016. The Wynne government has also committed to keep rate increases below inflation for the next four years, but admits bills will rise significantly in the decade that follows as a recovery rate could drive costs higher.

Ford blasted the government's moves during a Toronto news conference, echoing calls to scrap the Fair Hydro Plan and review other options.

"The party's over with the tax payer's money, we're going to start respecting the tax payers," Ford said, repeatedly saying the money spent on Hydro One salaries is "morally indefensible."

Related News

• Electricity Forum News

• Energy Policy News

Baltimore Substation Attack Plot highlights alleged neo-Nazi plans targeting electrical substations and the power grid, as FBI and DHS warn of domestic extremism threats to critical infrastructure, with arrests in Maryland disrupting potential sniper attacks.

Key Points

An alleged extremist plot to disable Baltimore's power grid by shooting substations, thwarted by federal arrests.

✅ Two suspects charged in Maryland conspiracy

✅ Targets included five substations around Baltimore

✅ FBI cites domestic extremism threat to infrastructure

A neo-Nazi in Florida and a Maryland woman conspired to attack several electrical substations in the Baltimore area, federal officials say.

Sarah Beth Clendaniel and Brandon Clint Russell were arrested and charged in a conspiracy to disable the power grid by shooting out substations via "sniper attacks," according to a criminal complaint from the U.S. Attorney's Office for the District of Maryland.

Clendaniel allegedly said she wanted to "completely destroy this whole city" and was planning to target five substations situated in a "ring" around Baltimore, the complaint said. Russell is part of a violent extremist group that has cells in multiple states, and he previously planned to attack critical infrastructure in Florida, the complaint said.

"This planned attack threatened lives and would have left thousands of Marylanders in the cold and dark," Maryland U.S. Attorney Erek Barron said in a press release. "We are united and committed to using every legal means necessary to disrupt violence, including hate-fueled attacks."

The news comes as concerns grow about an increase in targeted substation attacks on U.S. substations tied to domestic extremism.

What to know about substation attacks

Federal data shows vandalism and suspicious activities at electrical facilities soared nationwide last year, and cyber actors have accessed utilities' control rooms as well.

At the end of the year, attacks or potential attacks were reported on more than a dozen substations and one power plant across five states, and Symantec documented Russia-linked Dragonfly activity targeting the energy sector earlier. Several involved firearms.

In December, targeted attacks on substations in North Carolina left tens of thousands without power amid freezing temperatures, spurring renewed focus on protecting the U.S. power grid among officials. The FBI is investigating.

Vandalism at facilities in Washington left more than 21,000 without electricity on Christmas Day, even as hackers breached power-plant systems in other states. Two men were arrested, and one told police he planned to disrupt power to commit a burglary.

The Department of Homeland Security last year said domestic extremists had been developing "credible, specific plans" since at least 2020 and would continue to "encourage physical attacks against electrical infrastructure," and the U.S. government has condemned Russia for power grid hacking as well.

Last February, three neo-Nazis pleaded guilty to federal crimes related to a scheme to attack the grid with rifles, with each targeting a substation in a different region of the U.S., even as reports that Russians hacked into US electric utilities drew widespread attention.

Related News

• Electricity Forum News

• Grid Technologies News

Nuclear Power for Net-Zero Grids anchors reliable baseload, integrating renewables with grid stability as solar, wind, and battery storage scale. Advanced reactors complement hydropower, curb natural gas reliance, and accelerate deep decarbonization of electricity systems.

Key Points

Uses nuclear baseload and advanced reactors to stabilize power grids and integrate higher shares of variable renewables.

✅ Provides firm, zero-carbon baseload for renewable-heavy grids

✅ Reduces natural gas dependence and peaker emissions

✅ Advanced reactors enhance safety, flexibility, and cost

Declining solar, wind, and battery technology costs are helping to grow the share of renewables in the world’s power mix to the point that governments are pledging net-zero emission electricity generation in two to three decades to fight global warming.

Yet, electricity grids will continue to require stable baseload to incorporate growing shares of renewable energy sources and ensure lights are on even when the sun doesn’t shine, or the wind doesn’t blow. Until battery technology evolves enough—and costs fall far enough—to allow massive storage and deployment of net-zero electricity to the grid, the systems will continue to need power from sources other than solar and wind.

And these will be natural gas and nuclear power, regardless of concerns about emissions from the fossil fuel natural gas and potential disasters at nuclear power facilities such as the ones in Chernobyl or Fukushima.

As natural gas is increasingly considered as just another fossil fuel, nuclear power generation provides carbon-free electricity to the countries that have it, even as debates over nuclear power’s outlook continue worldwide, and could be the key to ensuring a stable power grid capable of taking in growing shares of solar and wind power generation.

The United States, where nuclear energy currently provides more than half of the carbon-free electricity, is supporting the development of advanced nuclear reactors as part of the clean energy strategy.

But Europe, which has set a goal to reach carbon neutrality by 2050, could find itself with growing emissions from the power sector in a decade, as many nuclear reactors are slated for decommissioning and questions remain over whether its aging reactors can bridge the gap. The gap left by lost nuclear power is most easily filled by natural gas-powered electricity generation—and this, if it happens, could undermine the net-zero goals of the European Union (EU) and the bloc’s ambition to be a world leader in the fight against climate change.

U.S. Power Grid Will Need Nuclear For Net-Zero Emissions

A 2020 report from the University of California, Berkeley, said that rapidly declining solar, wind, and storage prices make it entirely feasible for the U.S. to meet 90 percent of its power needs from zero-emission energy sources by 2035 with zero increases in customer costs from today’s levels.

Still, natural gas-fired generation will be needed for 10 percent of America’s power needs. According to the report, in 2035 it would be possible that “during normal periods of generation and demand, wind, solar, and batteries provide 70% of annual generation, while hydropower and nuclear provide 20%.” Even with an exponential rise in renewable power generation, the U.S. grid will need nuclear power and hydropower to be stable with such a large share of solar and wind.

The U.S. Backs Advanced Nuclear Reactor Technology

The U.S. Department of Energy is funding programs of private companies under DOE’s new Advanced Reactor Demonstration Program (ARDP) to showcase next-gen nuclear designs for U.S. deployment.

“Taking leadership in advanced technology is so important to the country’s future because nuclear energy plays such a key role in our clean energy strategy,” U.S. Secretary of Energy Dan Brouillette said at the end of December when DOE announced it was financially backing five teams to develop and demonstrate advanced nuclear reactors in the United States.

“All of these projects will put the U.S. on an accelerated timeline to domestically and globally deploy advanced nuclear reactors that will enhance safety and be affordable to construct and operate,” Secretary Brouillette said.

According to Washington DC-based Nuclear Energy Institute (NEI), a policy organization of the nuclear technologies industry, nuclear energy provides nearly 55 percent of America’s carbon-free electricity. That is more than 2.5 times the amount generated by hydropower, nearly 3 times the amount generated by wind, and more than 12 times the amount generated by solar. Nuclear energy can help the United States to get to the deep carbonization needed to hit climate goals.

Europe Could See Rising Emissions Without Nuclear Power

While the United States is doubling down on efforts to develop advanced and cheaper nuclear reactors, including microreactors and such with new types of technology, Europe could be headed to growing emissions from the electricity sector as nuclear power facilities are scheduled to be decommissioned over the next decade and Europe is losing nuclear power just when it really needs energy, according to a Reuters analysis from last month.

In many cases, it will be natural gas that will come to the rescue to power grids to ensure grid stability and enough capacity during peak demand because solar and wind generation is variable and dependent on the weather.

For example, Germany, the biggest economy in Europe, is boosting its renewables targets, but it is also phasing out nuclear by next year, amid a nuclear option debate over climate strategy, while its deadline to phase out coal-fired generation is 2038—more than a decade later compared to phase-out plans in the UK and Italy, for example, where the deadline is the mid-2020s.

The UK, which left the EU last year, included support for nuclear power generation as one of the ten pillars in ‘The Ten Point Plan for a Green Industrial Revolution’ unveiled in November.

The UK’s National Grid has issued several warnings about tight supply since the fall of 2020, due to low renewable output amid high demand.

“National Grid’s announcement underscores the urgency of investing in new nuclear capacity, to secure reliable, always-on, emissions-free power, alongside other zero-carbon sources. Otherwise, we will continue to burn gas and coal as a fallback and fall short of our net zero ambitions,” Tom Greatrex, Chief Executive of the Nuclear Industry Association, said in response to one of those warnings.

But it’s in the UK that one major nuclear power plant project has notoriously seen a delay of nearly a decade—Hinkley Point C, originally planned in 2007 to help UK households to “cook their 2017 Christmas turkeys”, is now set for start-up in the middle of the 2020s.

Nuclear power development and plant construction is expensive, but it could save the plans for low-carbon emission power generation in many developed economies, including in the United States.

Related News

• Electricity Forum News

• Power Generation News

London Gateway All-Electric Berth enables shore power and cold ironing for container ships, cutting emissions, improving efficiency, and supporting green logistics, IMO targets, and UK net-zero goals through grid connection and port electrification.

Key Points

It is a shore power berth supplying electricity to ships, cutting emissions and costs while boosting port efficiency.

✅ Grid connection enables cold ironing for container ships

✅ Supports IMO decarbonization and UK net-zero goals

✅ Stabilizes energy costs versus marine fuels

London Gateway, one of the UK’s premier deep-water ports, has unveiled the world’s first all-electric berth, marking a significant milestone in sustainable port operations. This innovative development aims to enhance the port's capacity while reducing its environmental impact. The all-electric berth, which powers vessels using electricity, similar to emerging offshore vessel charging solutions, instead of traditional fuel sources, is expected to greatly improve operational efficiency and cut emissions from ships docking at the port.

The launch of this electric berth is part of London Gateway’s broader strategy to become a leader in green logistics, with parallels in electric truck deployments at California ports that support port decarbonization, aligning with the UK’s ambitious climate goals. By transitioning to electric power, the port reduces reliance on fossil fuels and significantly lowers carbon emissions, contributing to a cleaner environment and supporting the maritime industry’s transition towards sustainability.

The berth will provide cleaner power to container ships, enabling them to connect to the grid while docked, similar to electric ships on the B.C. coast, rather than running their engines, which traditionally contribute to pollution. This innovation supports the UK's broader push for decarbonizing its transportation and logistics sector, especially as the global shipping industry faces increasing pressure to reduce its carbon footprint.

The new infrastructure is expected to increase London Gateway’s operational capacity, allowing for a higher volume of traffic while simultaneously addressing the environmental challenges posed by growing port activities. By integrating advanced technologies like the all-electric berth, and advances such as battery-electric high-speed ferries, the port can handle more shipments without expanding its reliance on traditional fuel-based power sources. This could lead to increased cargo throughput, as shipping lines are incentivized to use a greener, more efficient port for their operations.

The project aligns with broader global trends, including electric flying ferries in Berlin, as ports and shipping companies seek to meet international standards set by the International Maritime Organization (IMO) and other regulatory bodies. The IMO has set aggressive targets for reducing greenhouse gas emissions from shipping, and the UK has pledged to be net-zero by 2050, with the shipping sector playing a crucial role in that transition.

In addition to its environmental benefits, the electric berth also helps reduce the operational costs for shipping lines, as seen with electric ferries scaling in B.C. programs across the sector. Traditional fuel costs can be volatile, whereas electric power offers a more stable and predictable expense. This cost stability could make London Gateway an even more attractive port for international shipping companies, further boosting its competitive position in the global market.

Furthermore, the project is expected to have broader economic benefits, generating jobs and fostering innovation, such as hydrogen crane projects in Vancouver, within the green technology and maritime sectors. London Gateway has already made significant strides in sustainable practices, including a focus on automated systems and energy-efficient logistics solutions. The introduction of the all-electric berth is the latest in a series of initiatives aimed at strengthening the port’s sustainability credentials.

This groundbreaking development sets a precedent for other global ports to adopt similar sustainable technologies. As more ports embrace electrification and other green solutions, the shipping industry could experience a dramatic reduction in its environmental footprint. This shift could have a cascading effect on the wider logistics and supply chain industries, leading to cleaner and more efficient global trade.

London Gateway’s all-electric berth represents a forward-thinking approach to the challenges of climate change and the need for sustainability in the maritime sector. With its ability to reduce emissions, improve port capacity, and enhance operational efficiency, this pioneering project is poised to reshape the future of global shipping. As more ports around the world follow suit, the potential for widespread environmental impact in the shipping industry is significant, providing hope for a greener future in international trade.

Related News

• Electricity Forum News

• EV Infrastructure News