[Nucléaire] Relance du nucléaire aux USA.... ou pas ?

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par Jeuf » 05 mars 2020, 11:21

Voilà une curieuse affaire, à propos de laquelle je ne trouve pas d'autres articles pour étayer et expliquer cette histoire (notament ,quelque chose de plus technique m'aurait intéressé...)
https://korii.slate.fr/tech/idaho-react ... klo-aurora
Dans l'Idaho, un réacteur nucléaire utilisant de l'uranium recyclé va voir le jour

Le département de l'Énergie des États-Unis a donné son feu vert à un projet pour le moins innovant: la création d'un réacteur nucléaire expérimental, utilisant de l'uranium recyclé pour créer de l'énergie, dans l'Idaho.
[...]

Une start-up américaine nommée Oklo, qui prétend être la première entreprise à créer de l'énergie à partir de déchets nucléaires. L'Idaho National Laboratory (INL), gigantesque centre de recherche nucléaire de 2.300 km2 situé dans le désert, qui accumule depuis des années des dizaines de tonnes de déchets d'uranium.
À lire aussiMini-centrales nucléaires, maxi-espoirs

Depuis un an environ, raconte Wired, l'organisme de recherche traite le combustible nucléaire usé pour le rendre réutilisable.
Ah oui je vois : il faudrait aller lire en anglais pour avoir plus d'info (https://www.wired.com/story/recycled-nu ... w-reactor/ pour commencer)

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 15 mars 2020, 11:10

Une seconde centrale avec 2 réacteurs voit sa licence d'exploitation passer à 80 ans.
Second US plant licensed for 80-year operation

09 March 2020

The US Nuclear Regulatory Commission (NRC) has approved Exelon Generation Company's application for an additional 20 years of operation for Peach Bottom units 2 and 3, authorising an operating life of up to 80 years. These are the second subsequent licence renewals granted by the US regulator, following Turkey Point units 3 and 4 which were granted renewals last December. Peach Bottom 2's subsequent renewed licence will expire on 8 August 2053 and unit 3's on 2 July 2054.
........
https://www.world-nuclear-news.org/Arti ... -operation

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 26 avr. 2020, 15:23

Trump administration unveils plan to rescue US uranium mining

Jackson Chen | April 23, 2020

The Trump administration released a report on Thursday outlining its plan to revitalize the US nuclear energy industry and support domestic uranium mining amid concerns that the nation has lost its spotlight on the global nuclear technology stage.

The report was compiled by the Nuclear Fuel Working Group — a task force appointed by President Donald Trump in July to undertake a detailed analysis of the US nuclear fuel supply chain — and submitted to the US Energy Department.

The report made several key recommendations to the US government, including streamlining the permitting process for public land access, making it faster and easier to mine uranium — an essential mineral for nuclear power.

For miners, notable recommendations include making direct purchases of 17 to 19 Mlb of U3O8 to establish a uranium reserve beginning in 2020, which would provide direct support to the front end of the fuel cycle and support the operation of at least two US uranium mines.

The report also includes President Trump’s earlier request to Congress for a uranium reserve and a $1.5 billion budget over 10 years to make direct purchases from domestic producers.

Republican lawmakers and uranium producers have long called for measures to boost US uranium mining and the nuclear energy industry, which the report says was at “high risk of insolvency.”

Over recent years, US nuclear power producers and uranium miners have suffered from a lack of investment and support. Last year, Trump rejected a request by the county’s top two uranium producers Energy Fuels and Ur-Energy seeking 25% purchasing quotas for domestic uranium output.

The report also recommended extending an agreement to limit Russian uranium imports as well as denying imports from China, and funding research and development on new types of reactors and fuels.

Secretary of Energy Dan Brouillette said the report contains a “road map for what we think needs to be done to not only revitalize but re-establish American leadership in this entire industry.”

He added that it is possible for Trump to issue executive orders to support the findings of the report.

However, opponents of the government’s efforts to bolster the nuclear sector are concerned these recommendations would increase mining near national parks and harm public health. Some also argue that the nation already supplies uranium at competitive prices, and the government has attempted similar endeavours to save the coal industry.

US companies currently provide only 10% of the domestic uranium purchases, with more than 60% of supplies imported from allies like Canada, Australia and Kazakhstan.
https://www.mining.com/trump-administra ... um-mining/

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 27 avr. 2020, 09:05

En rapport avec le post juste au dessus.

Et donc il est question de rouvrir le droit de miner l' Uranium dans les terres du Grand Canyon.

https://insideclimatenews.org/news/2404 ... oronavirus
...........
Then, in an April 17 letter, 21 GOP House members urged the administration to open up public lands where mining of critical minerals is currently banned, including the Breccia Pipe Uranium formation near the Grand Canyon.

"Keeping this valuable resource off limits does not make economic or environmental sense and puts our long-term energy security at risk," they wrote.

Amber Reimondo, energy program director for the Grand Canyon Trust, said Four Corners ore contains uranium concentrations that are relatively low, close to 1 percent, compared to concentrations from suppliers in Canada and Australia
...........

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 01 mai 2020, 20:35

suite de ce post du 26 nov 2016 viewtopic.php?p=395852#p395852

La centrale de Indian Point dans la roue de celle de Fessenheim.

Le réacteur 2 de 998 MWe à fermé hier 30 Avril après 45 années d' opérations. le réacteur 3 de 1030 MWe va fermer l' an prochain en Avril.
Entergy closes Indian Point unit 2

30 April 2020

Unit 2 of Entergy's Indian Point nuclear power plant will be shut down for the final time today after more than 45 years of operation. Unit 3, the remaining operating unit at the site in the state of New York, is scheduled to be permanently shut down by this time next year.

Image
Indian Point (Image: Entergy)

"Over the last 45 years, thousands of dedicated professionals have operated Unit 2 at Indian Point - safely, securely and reliably," Entergy Chief Nuclear Officer Chris Bakken said. "We owe each of them our thanks for a job well done and for their commitment to the highest standards of professionalism."

The two-unit plant is in the south-east of New York state, 24 miles (39 kilometres) from New York City. Unit 2 - a pressurised water reactor (PWR) which has a net generating capacity of 998 MWe - began commercial operation in August 1974 and unit 3 - a 1030 MWe (net) PWR - two years later.

The plan to shut down the reactors was announced by Entergy in 2017 and is pursuant to a settlement agreement with the State of New York. This was the result of a number of factors, including sustained low current and projected wholesale energy prices that reduced revenues, the company said yesterday. The agreement included a provision that in the event of an emergency situation affecting electricity generation, the state may agree to allow the plant to continue operating for up to five more years. Indian Point 2 is currently licensed to operate until 2024 and unit 3 until 2025.

Assistant secretary for the US Department of Energy Office of Nuclear Energy Rita Baranwal, who had previously tweeted that the premature shutdown of Indian Point "pained" her, said it was "disappointing" to see unit 2 shut down four years prior to the expiry of its operating licence.

"As recently highlighted in the Nuclear Fuel Working Group report, nuclear power is a crucial component of our energy infrastructure that provides reliable, clean energy to our grid," she said, adding that the region will not only lose 1000 megawatts of clean and reliable power this year, but millions of dollars in local tax revenues and hundreds of high-paying jobs when unit 3 shuts down next April. "Our nation's reactors, which can run up to 80 years, should be allowed to safely run out their lifespan. The Office of Nuclear Energy is committed to preserving the US fleet and will continue working directly with industry to support research that reduces operating costs, increases revenue opportunities and keeps our largest source of clean energy on the grid for many more years to come," Baranwal said.
https://www.world-nuclear-news.org/Arti ... shuts-down

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 21 mai 2020, 16:03

Ils sont complètement inconscient aux US, ils perdent la main sur la production de l' Uranium sur leur propre sol, leur production à quasi zéro :
US uranium output falls 89% in 2019

19 May 2020

The USA produced a total of 0.17 million pounds U3O8 (65.4 tU) of uranium concentrate from all domestic sources in 2019, according to a newly published annual report from the US Energy Information Administration (EIA). This was 89% less than in 2018.

Image
(Image: EIA)

The 2019 Domestic Uranium Production Report recorded US uranium production in 2019 from six facilities: five in-situ leach (ISL) plants in Nebraska and Wyoming (Crow Butte Operation, Lost Creek Project, Ross CPP, North Butte, and Smith Ranch-Highland Operation) and one underground mine. At the end of the year, two conventional uranium mills - Shootaring Canyon Uranium Mill in Utah and Sweetwater Uranium Project in Wyoming - were on standby, and the White Mesa Mill in Utah was no longer producing uranium. The report does not provide details of the amount of ore fed to mills from underground mines, but notes that this may include ore mined and shipped to a mill during the same year, previously mined ore from stockpiles at mine sites, ore from stockpiles maintained at a mill site, or a combination of these.

At the year's end, three ISL plants - Lost Creek, Nichols Ranch ISR Project, and Smith Ranch-Highland, all in Wyoming - were operating with a combined capacity of 9.5 million pounds U3O8 per year, the EIA said. Six ISL plants were on standby.

Total employment in the US uranium production industry was 265 full-time person-years (one person year is equal to full-time employment for one person), a 29% year-on-year decrease. Employment in mining activities, at 48 person-years, was 56% down on the 110 person-years recorded for 2018, but exploration employment, at 40 person-years, showed a 48% increase.

Reported estimated US uranium reserves at the end of 2019 were 31 million pounds U3O8 at a maximum forward cost of up to USD30 per pound; 206 million pounds U3O8 at up to USD50 per pound and 389 million pounds U3O8 up to USD100 per pound.

"These reserves are a fraction of likely total domestic uranium reserves because we did not include inferred resources that were not reported because of a lack of cost estimates or because the reserves were not located on actively managed properties," the EIA said.

The Nuclear Fuel Working Group, established last year by the US Administration to analyse national security considerations with respect to the entire nuclear fuel supply chain, recently published a strategy to revive the USA's nuclear fuel cycle. In it, the group recognised the importance of taking "focused, deliberate action" to prevent the near-term collapse of the domestic uranium mining, milling and conversion industries. Its recommendations include establishing a uranium reserve, ending the Department of Energy's bartering of uranium and re-evaluating DOE's excess uranium inventory management policy.
https://www.world-nuclear-news.org/Arti ... um-figures

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par Silenius » 07 juin 2020, 17:11

9 equipes du MIT et du Departement de l'Energie aux USA travaillent sur des reacteurs a faible cout de construction et de fonctionnement.

https://www.nextbigfuture.com/2020/06/164772.html

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 29 août 2020, 21:23

Exelon announces early shutdown of four Illinois reactors

27 August 2020

US utility Exelon Generation announced today both the two-unit Byron and Dresden nuclear power plants will be retired in 2021 as "the result of market rules that favour polluting power plants over carbon-free nuclear energy." It warned that further plants are at risk of premature closure due to these unfavourable market rules.

.......
https://www.world-nuclear-news.org/Arti ... Illinois-r

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 11 nov. 2020, 15:19

Suite de ce post du 13 fev 2020 http://www.oleocene.org/phpBB3/viewtopi ... 3#p2295813

Test à froid du réacteur en chantier à Vogtle.
US AP1000 reactor passes pre-commissioning test

20 October 2020

Cold functional testing of unit 3 at the Vogtle nuclear power plant near Waynesboro, Georgia, has been completed, Georgia Power announced yesterday. The tests mark the first time the reactor systems have been operated together with the auxiliary systems.
......
https://www.world-nuclear-news.org/Arti ... oning-test

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 29 nov. 2020, 09:36

Projet de minage d'uranium dans le South Dakota.
Azarga receives key permit for US uranium project
Azarga Uranium boss Blake Steele said the company was “substantially closer to becoming the next uranium producer” in the US after receiving the second of three key permits for its Dewey Burdock project in South Dakota.
.......

An updated preliminary economic assessment filed in January had outlined initial capex of US$31.7 million, 14.3 million pounds of U3O8 production over 16 years, a post-tax NPV8 of $147.5 million and IRR of 50%, using a $55/lb sales price.

The current uranium spot price is below $30/lb.
https://www.mining-journal.com/energy-m ... um-project

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 12 déc. 2020, 19:18

Suite de 2 posts au dessus.
Vogtle 3 receives first fuel delivery

10 December 2020

Georgia Power has taken delivery of nuclear fuel for Vogtle unit 3. Construction of the AP1000 - one of two being built at the site near Waynesboro - is now about 96% complete. Fuel loading is expected in April, the company said.
.....
https://www.world-nuclear-news.org/Arti ... t-Vogtle-3

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 02 janv. 2021, 10:34

Le dpt of Energy alloue 20 millions de dollars pour des programmes de recherche de reacteurs nucleaires.
DOE selects advanced reactor concepts for funding
23 December 2020

The US Department of Energy (DOE) has announced USD20 million in awards for the third of three programmes under its new Advanced Reactor Demonstration Program (ARDP). DOE's Office of Nuclear Energy has selected three teams to receive FY2020 funding for the ARDP's Advanced Reactor Concepts-20 (ARC-20) programme.
........
lire : https://www.world-nuclear-news.org/Arti ... or-funding

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 02 janv. 2021, 11:25

Biden ne veut pas de mines d'Uranium dans le Grand Canyon, et veut balayer les tentatives de Trump.
Biden firm on uranium mining ban around ‘jewel’ of the Grand Canyon

jan 2 , 2021

For four years, the Trump administration took steps to boost uranium mining for what it called national security reasons, a move environmentalists saw as an attempt to open the door to mining near the Grand Canyon.

President-elect Joe Biden may be ready to shut that door for good.


“I can’t believe I have to say this, but we can’t let Donald Trump open up the Grand Canyon for uranium mining,” Biden tweeted in August, after a Trump administration task force on nuclear fuel proposed relaxing restrictions on mining on federal lands.

In a statement posted at the same time, Biden called the Grand Canyon an “irreplaceable jewel” and blasted the Trump administration’s mining plan, saying he would focus instead on developing clean energy. While Biden did not lay out a specific mining plan, his statement was still enough for Kevin Dahl.

“I’m thrilled that the new administration has taken that stand even before inauguration. It’s a well-considered policy,” said Dahl, the Arizona senior project manager for the National Parks Conservation Association.

Mining supporters disagree, saying that “well-considered policy” is actually short-sighted and ill-informed.

“Mining on this land can be done responsibly and would bring hundreds of good-paying jobs to my district,” said Rep. Paul Gosar, R-Prescott. “As I have said on many occasions, this withdrawal is not about protecting the Grand Canyon, but crippling the domestic uranium mining industry.”
..............
https://azbigmedia.com/business/biden-f ... nd-canyon/

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 14 avr. 2021, 23:43

suite de ce post du 1er mai 2020 http://www.oleocene.org/phpBB3/viewtopi ... 2#p2302392

le reacteur 3 de Indian Point (au Nord de New York) va bien fermer fin avril comme annoncé il y a un an.

Il va devoir y avoir davantage recours aux centrales thermiques à gaz.
Indian Point Is Shutting Down. That Means More Fossil Fuel.
When the Indian Point nuclear power plant shuts, its lost output will be filled primarily by generators that burn fuels that contribute to climate change.

By Patrick McGeehan Published April 12, 2021 the New York Times

For most of his long political career, Gov. Andrew M. Cuomo railed against the dangers of having a nuclear power plant operating just 25 miles away from New York City, saying its proximity to such a densely populated metropolis defied “basic sanity.’’

But now, the plant is preparing to shut down, and New York is grappling with the adverse effect the closing will have on another of Mr. Cuomo’s ambitious goals: sharply reducing the state’s reliance on fossil fuels.

So far, most of the electricity produced by the nuclear plant, known as Indian Point, has been replaced by power generated by plants that burn natural gas and emit more pollution. And that trade-off will become more pronounced once Indian Point’s last reactor shuts down on April 30.
...................
https://www.nytimes.com/2021/04/12/nyre ... osing.html

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Re: [Nucléaire] Relance du nucléaire aux USA.... ou pas ?

Message par energy_isere » 02 mai 2021, 22:57

suite du post au dessus.
le dernier réacteur de Indian Point (de 1040 MW) au Nord de New York a donc définitivement été retiré de la production électrique le 30 avril comme prévu.
New York’s Indian Point nuclear power plant closes after 59 years of operation

APRIL 30, 2021

The Indian Point Energy Center (Indian Point) permanently stopped generating electricity on April 30, 2021, when it retired its last operating nuclear reactor, Unit 3, earlier than originally planned. The Indian Point nuclear power plant began operations in 1962 and produced over 565 terawatthours (TWh) of electricity in the 59 years it was open. The Unit 3 retirement removes almost 1,040 megawatts (MW) of nuclear generating capacity from New York State, leaving about 3,200 MW of remaining nuclear capacity at three plants in upstate New York.

Indian Point is located in Buchanan, New York, about 25 miles north of Midtown Manhattan. The plant had three pressurized water reactors. Unit 1 began operations in 1962 and shut down in 1974. Units 2 and 3 began operations in 1974 and 1976, respectively; Unit 2 retired in April 2020. The Consolidated Edison grid system distributed the plant’s electricity to the five boroughs of New York City and neighboring Westchester County.

Three natural gas-fired power plants have been introduced over the past three years to help support the electric supply needed by New York City that Indian Point had been providing: Bayonne Energy Center II (120 MW), CPV Valley Energy Center (678 MW), and Cricket Valley Energy Center (1,020 MW).

Image

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https://www.eia.gov/todayinenergy/detail.php?id=47776

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