Xcel Energy unveils plan to cut emissions

By Associated Press


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Xcel Energy is proposing to spend $1.3 billion to convert coal-fired power plants to natural gas and close a plant to comply with a new Colorado law aimed at cutting pollution from power plants.

Xcel Energy, Colorado's largest electric utility, said the plan will help meet statewide goals of reducing emissions of nitrogen, carbon dioxide, sulfur dioxide and mercury. The company said it will also save $225 million compared to installing pollution-control equipment.

Gov. Bill Ritter campaigned for the law encouraging the use of natural gas to cut pollution and Xcel Energy supported it. The Minneapolis-based utility said switching to natural gas is expected to raise customers' bills on average by 1 percent annually.

State regulators will consider the company's proposal.

Dick Kelly, Xcel Energy's chairman and chief executive, said the company expects the Environmental Protection Agency over the next several years to require a series of mandates "unprecedented in the history of the Clean Air Act."

"We believe our proposal is the best way to meet new environmental requirements in a manner that preserves reliability and minimizes customer costs," Kelly said.

Xcel Energy plans to reduce emissions by closing a 186-megawatt coal-fired power plant in Boulder by the end of 2017 and switching all four units at its Cherokee plant in Denver to natural gas. New pollution-control equipment would be installed in other coal plants.

The utility's proposal drew praise from Ritter and environmentalists. Ritter called it the "first major milestone" for Colorado's plan to replace old, inefficient coal-fired power plants with new, cleaner plants.

"Clean air is not a partisan political issue and this effort is the proof-in-the-pudding," said Pete Maysmith, executive director of Colorado Conservation Voters. "Diverse stakeholders, from industry to conservation groups, from Republicans to Democrats, all came together to create this framework for change — and it's time for Washington to take notice."

Critics, which included some GOP lawmakers, objected to the law's preference for natural gas and questioned the effect on rates because of the volatility of gas prices.

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Demand for electricity in Yukon hits record high

Yukon Electricity Demand Record underscores peak load growth as winter cold snaps drive heating, lighting, and EV charging, blending hydro, LNG, and diesel with renewable energy and planned grid-scale battery storage in Whitehorse.

 

Key Points

It is the territory's new peak electricity load, reflecting winter demand, electric heating, EVs, and mixed generation.

✅ New peak: 104.42 MW, surpassing 2020 record of 103.84 MW

✅ Winter peaks met with hydro, LNG, diesel, and renewables mix

✅ Customers urged to shift use off peak hours and use timers

 

A new record for electricity demand has been set in Yukon. The territory recorded a peak of 104.42 megawatts, according to a news release from Yukon Energy.

The new record is about a half a megawatt higher than the previous record of 103.84 megawatts recorded on Jan. 14, 2020.

While in general, over 90 per cent of the electricity generated in Yukon comes from renewable resources each year, with initiatives such as new wind turbines expanding capacity, during periods of high electricity use each winter, Yukon Energy has to use its hydro, liquefied natural gas and diesel resources to generate the electricity, the release says.

But when it comes to setting records, Andrew Hall, CEO of Yukon Energy, says it's not that unusual.

"Typically, during the winter, when the weather is cold, demand for electricity in the Yukon reaches its maximum. And that's because folks use more electricity for heating their homes, for cooking meals, there's more lighting demand, because the days are shorter," he said.

"It usually happens either in December or sometimes in January, when we get a cold snap."

He said generally over the years, electricity demand has grown.

"We get new home construction, construction of new apartment buildings. And typically, those new homes are all heated by electricity, maybe not all of them but the majority," Hall said.

Vuntut Gwitchin First Nation's solar farm now generating electricity
In taking action on climate, this Arctic community wants to be a beacon to the world

Efforts to curb climate change add to electricity demand
There are also other reasons, ones that are "in the name of climate change," Hall added.

That includes people trying to limit fossil fuel heating by swapping to electric heating. And, he said some Yukoners are switching to electric vehicles as incentives expand across the North.

"Over time, those two new demands, in the name of climate change, will also contribute to growing demand for electricity," he said.

While Yukon did reach this new all time high, Hall said the territory still hadn't hit the maximum capacity for the week, which was 118 megawatts, and discussions about a potential connection to the B.C. grid are part of long-term planning.


Yukon Energy's hydroelectric dam in Whitehorse. Yukon Energy's CEO, Andrew Hall, said demand of 104 megawatts wasn't unexpected, nor was it an emergency. The corporation has the ability to generate 118 megawatts. (Paul Tukker/CBC)
Tips to curve demand
"When we plan our system, we actually plan for a scenario, guided by the view that sustainability is key to the grid's future, where we actually lose our largest hydro generating facility," Hall said.

"We had plenty of generation available so it wasn't an emergency situation, and, even as other provinces face electricity shortages, it was more just an observation that hey, our peaks are growing."

He also said it was an opportunity to reach out to customers on ways to curve their demand for electricity around peak times, drawing on energy efficiency insights from other provinces, which is typically between 7 a.m. and 9 a.m., and between 5 p.m. and 7 p.m., Monday to Friday.

For example, he said, people should consider running major appliances, like dishwashers, during non-peak hours, such as in the afternoon rather than in the morning or evening.

During winter peaks, people can also use a block heater timer on vehicles and turn down the thermostat by one or two degrees.

'We plan for each winter'
Hall said Yukon Energy is working to increase its peak output, including working on a large grid scale battery to be installed in Whitehorse, similar to Ontario's energy storage push now underway. 

When it comes to any added load from people working from home due to COVID-19, Hall said they haven't noticed any identifiable increase there.

"Presumably, if someone's working from home, you know, their computer is at home, and they're not using the computer at the office," he said.

Yukon Energy one step closer to having largest battery storage site in the North
He said there shouldn't be any concern for maxing out the capacity of electricity demand as Yukon moves into the colder winter months, since those days are forecast for.

"This number of 104 megawatts wasn't unexpected," he said, adding how much electricity is needed depends on the weather too.

"We plan for each winter."

 

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Europe’s Big Oil Companies Are Turning Electric

European Oil Majors Energy Transition highlights BP, Shell, and Total rapidly scaling renewables, wind and solar assets, hydrogen, electricity, and EV charging while cutting upstream capex, aligning with net-zero goals and utility-style energy services.

 

Key Points

It is the shift by BP, Shell, Total and peers toward renewables, electricity, hydrogen, and EV charging to meet net-zero goals.

✅ Offshore wind, solar, and hydrogen projects scale across Europe

✅ Capex shifts, fossil output declines, net-zero targets by 2050

✅ EV charging, utilities, and power trading become core services

 

Under pressure from governments and investors, including rising investor pressure at utilities that reverberates across the sector, industry leaders like BP and Shell are accelerating their production of cleaner energy.

This may turn out to be the year that oil giants, especially in Europe, started looking more like electric companies.

Late last month, Royal Dutch Shell won a deal to build a vast wind farm off the coast of the Netherlands. Earlier in the year, France’s Total, which owns a battery maker, agreed to make several large investments in solar power in Spain and a wind farm off Scotland. Total also bought an electric and natural gas utility in Spain and is joining Shell and BP in expanding its electric vehicle charging business.

At the same time, the companies are ditching plans to drill more wells as they chop back capital budgets. Shell recently said it would delay new fields in the Gulf of Mexico and in the North Sea, while BP has promised not to hunt for oil in any new countries.

Prodded by governments and investors to address climate change concerns about their products, Europe’s oil companies are accelerating their production of cleaner energy — usually electricity, sometimes hydrogen — and promoting natural gas, which they argue can be a cleaner transition fuel from coal and oil to renewables, as carbon emissions drop in power generation.

For some executives, the sudden plunge in demand for oil caused by the pandemic — and the accompanying collapse in earnings — is another warning that unless they change the composition of their businesses, they risk being dinosaurs headed for extinction.

This evolving vision is more striking because it is shared by many longtime veterans of the oil business.

“During the last six years, we had extreme volatility in the oil commodities,” said Claudio Descalzi, 65, the chief executive of Eni, who has been with that Italian company for nearly 40 years. He said he wanted to build a business increasingly based on green energy rather than oil.

“We want to stay away from the volatility and the uncertainty,” he added.

Bernard Looney, a 29-year BP veteran who became chief executive in February, recently told journalists, “What the world wants from energy is changing, and so we need to change, quite frankly, what we offer the world.”

The bet is that electricity will be the prime means of delivering cleaner energy in the future and, therefore, will grow rapidly as clean-energy investment incentives scale globally.

American giants like Exxon Mobil and Chevron have been slower than their European counterparts to commit to climate-related goals that are as far reaching, analysts say, partly because they face less government and investor pressure (although Wall Street investors are increasingly vocal of late).

“We are seeing a much bigger differentiation in corporate strategy” separating American and European oil companies “than at any point in my career,” said Jason Gammel, a veteran oil analyst at Jefferies, an investment bank.

Companies like Shell and BP are trying to position themselves for an era when they will rely much less on extracting natural resources from the earth than on providing energy as a service tailored to the needs of customers — more akin to electric utilities than to oil drillers.

They hope to take advantage of the thousands of engineers on their payrolls to manage the construction of new types of energy plants; their vast networks of retail stations to provide services like charging electric vehicles; and their trading desks, which typically buy and hedge a wide variety of energy futures, to arrange low-carbon energy supplies for cities or large companies.

All of Europe’s large oil companies have now set targets to reduce the carbon emissions that contribute to climate change. Most have set a ”net zero” ambition by 2050, a goal also embraced by governments like the European Union and Britain.

The companies plan to get there by selling more and more renewable energy and by investing in carbon-free electricity across their portfolios, and, in some cases, by offsetting emissions with so-called nature-based solutions like planting forests to soak up carbon.

Electricity is the key to most of these strategies. Hydrogen, a clean-burning gas that can store energy and generate electric power for vehicles, also plays an increasingly large role.

The coming changes are clearest at BP. Mr. Looney said this month that he planned to increase investment in low-emission businesses like renewable energy by tenfold in the next decade to $5 billion a year, while cutting back oil and gas production by 40 percent. By 2030, BP aims to generate renewable electricity comparable to a few dozen large offshore wind farms.

Mr. Looney, though, has said oil and gas production need to be retained to generate cash to finance the company’s future.

Environmentalists and analysts described Mr. Looney’s statement that BP’s oil and gas production would decline in the future as a breakthrough that would put pressure on other companies to follow.

BP’s move “clearly differentiates them from peers,” said Andrew Grant, an analyst at Carbon Tracker, a London nonprofit. He noted that most other oil companies had so far been unwilling to confront “the prospect of producing less fossil fuels.”

While there is skepticism in both the environmental and the investment communities about whether century-old companies like BP and Shell can learn new tricks, they do bring scale and know-how to the task.

“To make a switch from a global economy that depends on fossil fuels for 80 percent of its energy to something else is a very, very big job,” said Daniel Yergin, the energy historian who has a forthcoming book, “The New Map,” on the global energy transition now occurring in energy. But he noted, “These companies are really good at big, complex engineering management that will be required for a transition of that scale.”

Financial analysts say the dreadnoughts are already changing course.

“They are doing it because management believes it is the right thing to do and also because shareholders are severely pressuring them,” said Michele Della Vigna, head of natural resources research at Goldman Sachs.

Already, he said, investments by the large oil companies in low-carbon energy have risen to as much as 15 percent of capital spending, on average, for 2020 and 2021 and around 50 percent if natural gas is included.

Oswald Clint, an analyst at Bernstein, forecast that the large oil companies would expand their renewable-energy businesses like wind, solar and hydrogen by around 25 percent or more each year over the next decade.

Shares in oil companies, once stock market stalwarts, have been marked down by investors in part because of the risk that climate change concerns will erode demand for their products. European electric companies are perceived as having done more than the oil industry to embrace the new energy era.

“It is very tricky for an investor to have confidence that they can pull this off,” Mr. Clint said, referring to the oil industry’s aspirations to change.

But, he said, he expects funds to flow back into oil stocks as the new businesses gather momentum.

At times, supplying electricity has been less profitable than drilling for oil and gas. Executives, though, figure that wind farms and solar parks are likely to produce more predictable revenue, partly because customers want to buy products labeled green.

Mr. Descalzi of Eni said converted refineries in Venice and Sicily that the company uses to make lower-carbon fuel from plant matter have produced better financial results in this difficult year than its traditional businesses.

Oil companies insist that they must continue with some oil and gas investments, not least because those earnings can finance future energy sources. “Not to make any mistake,” Patrick Pouyanné, chief executive of Total, said to analysts recently: Low-cost oil projects will be a part of the future.

During the pandemic, BP, Total and Shell have all scrutinized their portfolios, partly to determine if climate change pressures and lingering effects from the pandemic mean that petroleum reserves on their books — developed for perhaps billions of dollars, when oil was at the center of their business — might never be produced or earn less than previously expected. These exercises have led to tens of billions of dollars of write-offs for the second quarter, and there are likely to be more as companies recalibrate their plans.

“We haven’t seen the last of these,” said Luke Parker, vice president for corporate analysis at Wood Mackenzie, a market research firm. “There will be more to come as the realities of the energy transition bite.”

 

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Biden's Announcement of a 100% Tariff on Chinese-Made Electric Vehicles

U.S. 100% Tariff on Chinese EVs aims to protect domestic manufacturing, counter subsidies, and reshape the EV market, but could raise prices, disrupt supply chains, invite retaliation, and complicate climate policy and trade relations.

 

Key Points

A 100% import duty on Chinese EVs to boost U.S. manufacturing, counter subsidies, and address supply chain risks.

✅ Protects domestic EV manufacturing and jobs

✅ Counters alleged subsidies and IP concerns

✅ May raise prices, limit choice, trigger retaliation

 

President Joe Biden's administration recently made headlines with its announcement of a 100% tariff on Chinese electric vehicles (EVs), marking a significant escalation in trade tensions between the two economic powerhouses. The decision, framed as a measure to protect American industries and promote domestic manufacturing, has sparked debates over its potential impact on the EV market, global supply chains, and bilateral relations between the United States and China.

The imposition of a 100% tariff on Chinese-made EVs reflects the Biden administration's broader efforts to revitalize the American automotive industry and promote the transition to electric vehicles as part of its climate agenda and tighter EPA emissions rules that could accelerate adoption. By imposing tariffs on imported EVs, particularly those from China, the administration aims to incentivize domestic production and create jobs in the growing green economy, and to secure critical EV metals through allied supply efforts. Additionally, the tariff is seen as a response to concerns about unfair trade practices, including intellectual property theft and market distortions, allegedly perpetuated by Chinese companies.

However, the announcement has triggered a range of reactions from various stakeholders, with both proponents and critics offering contrasting perspectives on the potential consequences of such a policy. Proponents argue that the tariff will help level the playing field for American automakers, who face stiff competition from Chinese companies benefiting from government subsidies and lower production costs. They contend that promoting domestic manufacturing of EVs will not only create high-quality jobs but also enhance national security by reducing dependence on foreign supply chains at a time when an EV inflection point is approaching.

On the other hand, critics warn that the 100% tariff on Chinese-made EVs could have unintended consequences, including higher prices for consumers, as seen in the UK EV prices and Brexit debate, disruptions to global supply chains, and retaliatory measures from China. Chinese EV manufacturers, such as NIO, BYD, and XPeng, have been gaining momentum in the global market, offering competitive products at relatively affordable prices. The tariff could limit consumer choice at a time when U.S. EV market share dipped in Q1 2024, potentially slowing the adoption of electric vehicles and undermining efforts to combat climate change and reduce greenhouse gas emissions.

Moreover, the tariff announcement comes at a sensitive time for U.S.-China relations, which have been strained by various issues, including trade disputes, human rights concerns, and geopolitical tensions. The imposition of tariffs on Chinese-made EVs could further exacerbate bilateral tensions, potentially leading to retaliatory measures from China and escalating trade frictions. As the world's two largest economies, the United States and China have significant economic interdependencies, and any escalation in trade tensions could have far-reaching implications for global trade and economic stability.

In response to the Biden administration's announcement, Chinese officials have expressed concerns and called for dialogue to resolve trade disputes through negotiation and mutual cooperation. China has also emphasized its commitment to fair trade practices and compliance with international rules and regulations governing trade.

Moving forward, the Biden administration faces the challenge of balancing its domestic priorities with the need to maintain constructive engagement with China and other trading partners, even as EV charging networks scale under its electrification push. While promoting domestic manufacturing and protecting American industries are legitimate policy goals, achieving them without disrupting global trade and undermining diplomatic relations requires careful deliberation and strategic foresight.

In conclusion, President Biden's announcement of a 100% tariff on Chinese-made electric vehicles reflects his administration's commitment to revitalizing American industries and promoting domestic manufacturing. However, the decision has raised concerns about its potential impact on the EV market, global supply chains, and U.S.-China relations. As policymakers navigate these complexities, finding a balance between protecting domestic interests and fostering international cooperation will be crucial to achieving sustainable economic growth and addressing global challenges such as climate change.

 

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New Hampshire rejects Quebec-Massachusetts transmission proposal

Northern Pass Project faces rejection by New Hampshire regulators, halting Hydro-Quebec clean energy transmission lines to Massachusetts; Eversource vows appeal as the Site Evaluation Committee cites development concerns and alternative routes through Vermont and Maine.

 

Key Points

A project to transmit Hydro-Quebec power to Massachusetts via New Hampshire, recently rejected by state regulators.

✅ New Hampshire SEC denied the transmission application

✅ Up to 9.45 TWh yearly from Hydro-Quebec to Massachusetts

✅ Eversource plans appeal; alternative routes via Vermont, Maine

 

Regulators in the state of New Hampshire on Thursday rejected a major electricity project being piloted by Quebec’s hydro utility and its American partner, Eversource.

Members of New Hampshire’s Site Evaluation Committee unanimously denied an application for the Northern Pass project a week after the state of Massachusetts green-lit the proposal.

Both states had to accept the project, as the transmission lines were to bring up to 9.45 terawatt hours of electricity per year from Quebec’s hydroelectric plants to Massachusetts as part of Hydro-Quebec’s export bid to New England, through New Hampshire.

The 20-year proposal was to be the biggest export contract in Hydro-Quebec’s history, in a region where Connecticut is leading a market overhaul that could affect pricing, and would generate up to $500 million in annual revenues for the provincial utility.

Hydro-Quebec’s U.S. partner, Eversource, said in a new release it was “shocked and outraged” by the New Hampshire regulators’ decision and suggested it would appeal.

“This decision sends a chilling message to any energy project contemplating development in the Granite State,” said Eversource. “We will be seeking reconsideration of the SEC’s decision, as well as reviewing all options for moving this critical clean energy project forward, including lessons from electricity corridor construction in Maine.”

The New Hampshire Union Leader reported Thursday the seven members of the evaluation committee said the project’s promoters couldn’t demonstrate the proposed energy transport lines wouldn’t interfere with the region’s orderly development.

Hydro-Quebec spokesman Serge Abergel said the decision wasn’t great news but it didn’t put a end to the negotiations between the company and the state of Massachusetts.

The hydro utility had proposed alternatives routes through Vermont and Maine amid a 145-mile transmission line debate over the corridor should the original plan fall through.

“There is a provision included in the process in the advent of an impasse, which allows Massachusetts to go back and choose the next candidate on the list,” Abergel said in an interview. “There are still cards left on the table.”

 

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Cheap material converts heat to electricity

Polycrystalline Tin Selenide Thermoelectrics enable waste heat recovery with ZT 3.1, matching single crystals while cutting costs, powering greener car engines, industrial furnaces, and thermoelectric generators via p-type and emerging n-type designs.

 

Key Points

Low-cost tin selenide devices that turn waste heat into power, achieving ZT 3.1 and enabling p-type and n-type modules.

✅ Oxygen removal prevents heat-leaking tin oxide grain skins.

✅ Polycrystalline ingots match single-crystal ZT 3.1 at lower cost.

✅ N-type tin selenide in development to pair with p-type.

 

So-called thermoelectric generators turn waste heat into electricity without producing greenhouse gas emissions, providing what seems like a free lunch. But despite helping power the Mars rovers, the high cost of these devices has prevented their widespread use. Now, researchers have found a way to make cheap thermoelectrics that work just as well as the pricey kind. The work could pave the way for a new generation of greener car engines, industrial furnaces, and other energy-generating devices.

“This looks like a very smart way to realize high performance,” says Li-Dong Zhao, a materials scientist at Beihang University who was not involved with the work. He notes there are still a few more steps to take before these materials can become high-performing thermoelectric generators. However, he says, “I think this will be used in the not too far future.”

Thermoelectrics are semiconductor devices placed on a hot surface, like a gas-powered car engine or on heat-generating electronics using thin-film converters to capture waste heat. That gives them a hot side and a cool side, away from the hot surface. They work by using the heat to push electrical charges from one to the other, a process of turning thermal energy into electricity that depends on the temperature gradient. If a device allows the hot side to warm up the cool side, the electricity stops flowing. A device’s success at preventing this, as well as its ability to conduct electrons, feeds into a score known as the figure of merit, or ZT.

 Over the past 2 decades, researchers have produced thermoelectric materials with increasing ZTs, while related advances such as nighttime solar cells have broadened thermal-to-electric concepts. The record came in 2014 when Mercouri Kanatzidis, a materials scientist at Northwestern University, and his colleagues came up with a single crystal of tin selenide with a ZT of 3.1. Yet the material was difficult to make and too fragile to work with. “For practical applications, it’s a non-starter,” Kanatzidis says.

So, his team decided to make its thermoelectrics from readily available tin and selenium powders, an approach that, once processed, makes grains of polycrystalline tin selenide instead of the single crystals. The polycrystalline grains are cheap and can be heated and compressed into ingots that are 3 to 5 centimeters long, which can be made into devices. The polycrystalline ingots are also more robust, and Kanatzidis expected the boundaries between the individual grains to slow the passage of heat. But when his team tested the polycrystalline materials, the thermal conductivity shot up, dropping their ZT scores as low as 1.2.

In 2016, the Northwestern team discovered the source of the problem: an ultrathin skin of tin oxide was forming around individual grains of polycrystalline tin selenide before they were pressed into ingots. And that skin acted as an express lane for the heat to travel from grain to grain through the material. So, in their current study, Kanatzidis and his colleagues came up with a way to use heat to drive any oxygen away from the powdery precursors, leaving pristine polycrystalline tin selenide, whereas other devices can generate electricity from thin air using ambient moisture.

The result, which they report today in Nature Materials, was not only a thermal conductivity below that of single-crystal tin selenide but also a ZT of 3.1, a development that echoes nighttime renewable devices showing electricity from cold conditions. “This opens the door for new devices to be built from polycrystalline tin selenide pellets and their applications to be explored,” Kanatzidis says.

Getting through that door will still take some time. The polycrystalline tin selenide the team makes is spiked with sodium atoms, creating what is known as a “p-type” material that conducts positive charges. To make working devices, researchers also need an “n-type” version to conduct negative charges.

Zhao’s team recently reported making an n-type single-crystal tin selenide by spiking it with bromine atoms. And Kanatzidis says his team is now working on making an n-type polycrystalline version. Once n-type and p-type tin selenide devices are paired, researchers should have a clear path to making a new generation of ultra-efficient thermoelectric generators. Those could be installed everywhere from automobile exhaust pipes to water heaters and industrial furnaces to scavenge energy from some of the 65% of fossil fuel energy that winds up as waste heat. 

 

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Bill Gates’ Nuclear Startup Unveils Mini-Reactor Design Including Molten Salt Energy Storage

Natrium small modular reactor pairs a sodium-cooled fast reactor with molten salt storage to deliver load-following, dispatchable nuclear power, enhancing grid flexibility and peaking capacity as TerraPower and GE Hitachi pursue factory-built, affordable deployment.

 

Key Points

A TerraPower-GE Hitachi SMR joining a sodium-cooled reactor with molten salt storage for flexible, dispatchable power.

✅ 345 MW base; 500 MW for 5.5 hours via thermal storage

✅ Sodium-cooled coolant and molten salt storage enable load-following

✅ Backed by major utilities; factory-built modules aim lower costs

 

Nuclear power is the Immovable Object of generation sources. It can take days just to bring a nuclear plant completely online, rendering it useless as a tool to manage the fluctuations in the supply and demand on a modern energy grid.  

Now a firm launched by Bill Gates in 2006, TerraPower, in partnership with GE Hitachi Nuclear Energy, believes it has found a way to make the infamously unwieldy energy source a great deal nimbler, drawing on next-gen nuclear ideas — and for an affordable price. 

The new design, announced by TerraPower on August 27th, is a combination of a "sodium-cooled fast reactor" — a type of small reactor in which liquid sodium is used as a coolant — and an energy storage system. While the reactor could pump out 345 megawatts of electrical power indefinitely, the attached storage system would retain heat in the form of molten salt and could discharge the heat when needed, increasing the plant’s overall power output to 500 megawatts for more than 5.5 hours. 

“This allows for a nuclear design that follows daily electric load changes and helps customers capitalize on peaking opportunities driven by renewable energy fluctuations,” TerraPower said. 

Dubbed Natrium after the Latin name for sodium ('natrium'), the new design will be available in the late 2020s, said Chris Levesque, TerraPower's president and CEO.

TerraPower said it has the support of a handful of top U.S. utilities, including Berkshire Hathaway Energy subsidiary Pacificorp, Energy Northwest, and Duke Energy. 

The reactor's molten salt storage add-on would essentially reprise the role currently played by coal- or gas-fired power stations or grid-scale batteries: each is a dispatchable form of power generation that can quickly ratchet up or down in response to changes in grid demand or supply. As the power demands of modern grids become ever more variable with additions of wind and solar power — which only provide energy when the wind is blowing or the sun shining — low-carbon sources of dispatchable power are needed more and more, and Europe is losing nuclear power at a difficult moment for energy security. California’s rolling blackouts are one example of what can happen when not enough power is available to be dispatched to meet peak demand. 

The use of molten salt, which retains heat at extremely high temperatures, as a storage technology is not new. Concentrated solar power plants also collect energy in the form of molten salt, although such plants have largely been abandoned in the U.S. The technology could enjoy new life alongside nuclear plants: TerraPower and GE Hitachi Nuclear are only two of several private firms working to develop reactor designs that incorporate molten salt storage units, including U.K.- and Canada-based developer Moltex Energy.

The Gates-backed venture and its partner touted the "significant cost savings" that would be achieved by building major portions of their Natrium plants through not a custom but an industrial process — a defining feature of the newest generation of advanced reactors is that their parts can be made in factories and assembled on-site — although more details on cost weren't available. Reuters reported earlier that each plant would cost around $1 billion.

NuScale Power

A day after TerraPower and GE Hitachi's unveiled their new design, another nuclear firm — Portland, Oregon-based NuScale Power — announced that the U.S. Nuclear Regulatory Commission (NRC) had completed its final safety evaluation of NuScale’s new small modular reactor design.

It was the first small modular reactor design ever to receive design approval from the NRC, NuScale said. 

The approval means customers can now pursue plans to develop its reactor design confident that the NRC has signed off on its safety aspects. NuScale said it has signed agreements with interested parties in the U.S., Canada, Romania, the Czech Republic, and Jordan, and is in the process of negotiating more. 

NuScale previously said that construction on one of its plants could begin in Utah in 2023, with the aim of completing the first Power Module in 2026 and the remaining 11 modules in 2027.

NuScale
An artist’s rendering of NuScale Power’s small modular nuclear reactor plant. NUSCALE POWER
NuScale’s reactor is smaller than TerraPower’s. Entirely factory-built, each of its Power Modules would generate 60 megawatts of power. The design, typical of advanced reactors, uses pressurized water reactor technology, with one power plant able to house up to 12 individual Power Modules. 

In a sign of the huge amounts of time and resources it takes to get new nuclear technology to the market’s doorstep, NuScale said it first completed its Design Certification Application in December 2016. NRC officials then spent as many as 115,000 hours reviewing it, NuScale said, in what was only the first of several phases in the review process. 

In January 2019, President Donald Trump signed into law the Nuclear Energy Innovation and Modernization Act (NEIMA), designed to speed the licensing process for advanced nuclear reactors, and the DOE under Secretary Rick Perry moved to advance nuclear development through parallel initiatives. The law had widespread bipartisan support, underscoring Democrats' recent tentative embrace of nuclear power.

An industry eager to turn the page

After a boom in the construction of massive nuclear power plants in the 1960s and 70s, the world's aging fleet of nuclear plants suffers from rising costs and flagging public support. Nuclear advocates have for years heralded so-called small modular reactors or SMRs as the cheaper and more agile successors to the first generation of plants, and policy moves such as the UK's green industrial revolution lay out pathways for successive waves of reactors. But so far a breakthrough on cost has proved elusive, and delays in development timelines have been abundant. 

Edwin Lyman, the director of nuclear power safety at the Union of Concerned Scientists, suggested on Twitter that the nuclear designs used by TerraPower and GE Hitachi had fallen short of a major innovation. “Oh brother. The last thing the world needs is a fleet of sodium-cooled fast reactors,” he wrote.  

Still, climate scientists view nuclear energy as a crucial source of zero-carbon energy, with analyses arguing that net-zero emissions may be impossible without nuclear in many scenarios, if the world stands a chance at limiting global temperature increases to well below 2 degrees Celsius above pre-industrial levels. Nearly all mainstream projections of the world’s path to keeping the temperature increase below those levels feature nuclear energy in a prominent role, including those by the United Nations and the International Energy Agency (IEA). 

According to the IEA: “Achieving the clean energy transition with less nuclear power is possible but would require an extraordinary effort.”

 

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