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

Modérateurs : Rod, Modérateurs

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 03 sept. 2022, 12:15

La centrale de Diablo Canyon en Californie voit sa licence d'exploitation allongée de 5 ans pour chacun des deux reacteurs.
California lawmakers vote to keep Diablo Canyon online

01 September 2022

As California declares an extreme heat emergency its legislators have voted overwhelmingly in favour of a bill that will enable the state's only nuclear power plant to remain in operation for up to five years longer than currently planned.
.......................

Pacific Gas and Electric Company (PG&E) in 2016 proposed to retire Diablo Canyon when the pressurised water reactor units reached the end of their current operating licences, in 2024 for unit 1 and 2025 for unit 2. SB846 will allow the units to operate for up to five years beyond that, acting as a bridging technology to ensure a reliable energy system and reduce greenhouse gas emissions until additional renewable and zero-carbon energy sources come online. It also includes a USD1.4 billion loan to PG&E.
https://www.world-nuclear-news.org/Arti ... -Canyon-on

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 17 sept. 2022, 14:49

Autorisation accordée à Westinghouse pour continuer pendant 40 ans à produire des combustibles nucléaires civils à l' usine de Hopkins en Caroline du Nord. L'usine emploie 850 personnes.
Fuel fabrication plant relicensed for another 40 years
13 September 2022

The US Nuclear Regulatory Commission (NRC) has issued a renewed licence for Westinghouse's Columbia Fuel Fabrication Facility in Hopkins, South Carolina, which means it can continue producing nuclear fuel for commercial nuclear power reactors until September 2062.

.........................
https://www.world-nuclear-news.org/Arti ... other-40-y

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 24 sept. 2022, 15:04

Credits pour étudier la generation d'hydrogéne par electrolyse à haute temprature sur des sites de centrales nucléaires :
US partnerships boost development of hydrogen economy

23 September 2022

Argonne National Laboratory has teamed up with Constellation Energy Corp to develop carbon-free power generation technologies, including a project focusing on hydrogen production from nuclear power plants, while Bloom Energy and Excel Energy have announced plans for hydrogen production at a nuclear plant in Minnesota. Meanwhile, the US Department of Energy (DOE) has opened applications for a USD7 billion programme to create regional clean hydrogen hubs.

The new Cooperative Research and Development Agreement will see Argonne and Constellation - the USA's largest producer of carbon-free energy with the country's largest nuclear fleet - work together to evaluate trends in the country's energy system and develop technologies for more efficient, carbon-free power generation.

One of the projects supported under the agreement, which runs until October 2028, will focus on the use of hydrogen from nuclear power to store and transmit energy in backup power, transportation and a variety of other applications. Researchers at Argonne are already working with Constellation to assess market demand for hydrogen as well as the environmental and economic impacts of hydrogen production, storage and delivery, the partners said.

"Clean hydrogen produced from carbon-free nuclear has the power to transform difficult-to-decarbonise industries. By combining Constellation's nation-leading carbon-free energy resources with electrolysis technologies and Argonne National Laboratory's technical expertise, we have an opportunity to deliver real world solutions to combat the increasing threats of climate change," said Colleen Wright, Constellation's vice president of corporate strategy.

Mark Petri, grid security and resilience lead at Argonne, said the agreement would help the laboratory align its R&D with the needs of industry while giving industry access to the laboratory's technical capabilities and expertise, and described Constellation as an ideal industry partner. "We can immediately move our projects into field studies, pilots and adoption. We want to make a difference and help the nation solve problems associated with climate change, but we can't do that without industry," he said.

Electrolyser for Prairie Island

On 19 September, Bloom Energy announced plans to install an electrolyser at Xcel Energy's Prairie Island nuclear power plant in Minnesota, which it says will create "immediate and scalable pathways to produce cost-efficient, clean hydrogen".

Bloom's solid oxide-based electrolyser operates at high temperatures to convert water into hydrogen, and will use the high heat and steam produced by the nuclear facility to produce zero-carbon hydrogen more efficiently than low-temperature electrolysis alternatives like polymer electrolyte membrane or alkaline, the company said.

Engineering for the 240 kW demonstration is currently underway, with construction expected to begin in late 2023 and power-on expected in early 2024, Bloom said.
https://www.world-nuclear-news.org/Arti ... rogen-econ

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 15 oct. 2022, 20:44

suite de 4 posts au dessus.
Fuel loading under way at Vogtle 3

14 October 2022

Workers have begun transferring 157 fuel assemblies into the core of the unit, marking a pivotal milestone towards the startup and commercial operation of the USA's first new nuclear units in more than three decades.

Image
Vogtle 3 (Image: Georgia Power)

"The Vogtle 3 & 4 nuclear units represent a critical, long-term investment in our state's energy future, and the milestone of loading fuel for Unit 3 demonstrates the steady and evident progress at the nuclear expansion site," President and CEO of Georgia Power Chris Womack said, adding that the company is "making history" with the project. "These units are important to building the future of energy and will serve as clean, emission-free sources of energy for Georgians for the next 60 to 80 years," he said.

Vogtle 3 is the first of the two AP1000 units under construction at the site in Waynesboro to reach this milestone, after the US Nuclear Regulatory Commission in August issued operator Southern Nuclear with a so-called 103(g) finding confirming that it has been constructed and will be operated in conformance with its licence and NRC regulations.

The fuel loading process involves transferring the fuel assemblies one-by-one from the reactor's used fuel storage pool into its core. After the fuel has been loaded, startup testing will demonstrate the integrated operation of the primary coolant system and steam supply system at design temperature and pressure with fuel inside the reactor. Operators will then bring the plant from cold shutdown to initial criticality, synchronise the unit to the electric grid and systematically raise power to 100%.

Construction of Vogtle 3 began in March 2013 and unit 4 in November that year. Southern Nuclear and Georgia Power, both subsidiaries of Southern Company, took over management of the project to build the units in 2017 following Westinghouse's Chapter 11 bankruptcy.

Hot functional testing to verify the successful operation of plant systems at normal operating pressure and temperature without nuclear fuel was completed at Vogtle 3 in 2021. Fuel loading had been expected to begin later that year, but the schedule has been revised several times. Unit 3 is now projected to enter commercial service in the first quarter of 2023, with an in-service target date for unit 4 by the end of that year.

Vogtle 3 and 4 are co-owned by Georgia Power, Oglethorpe Power, MEAG Power and Dalton Utilities.

A video showing the fuel loading process can be seen here: https://youtu.be/sV81KRAcQZs
https://www.world-nuclear-news.org/Arti ... t-Vogtle-3

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 16 oct. 2022, 15:48

Gros changements dans l' actionnariat de Westinghouse, deal à 7.9 milliards de dollars :
Cameco, Brookfield Renewable Partners to buy Westinghouse in $7.9 billion deal

Reuters | October 11, 2022

Cameco Corp and Brookfield Renewable Partners said on Tuesday they would acquire nuclear power plant equipment maker Westinghouse Electric in a $7.9 billion deal including debt, amid renewed interest in nuclear energy.


The deal for one of the most storied names in the American power industry at an equity value of $4.5 billion comes at a time when nuclear power is seeing an uptick in interest amid an energy crisis in Europe and soaring crude oil and natural gas prices.

Nuclear power is also key for countries to meet global net-zero carbon emission goals and could be on the cusp of a boom seen after the 1970s oil crisis.

“We’re witnessing some of the best market fundamentals we’ve ever seen in the nuclear energy sector,” Uranium fuel supplier Cameco’s chief executive, Tim Gitzel, said.

Cameco will own 49% of Westinghouse, while Brookfield Renewable and its institutional partners will own the rest.

Westinghouse was acquired from Toshiba Corp by Brookfield Business Partners, an affiliate of Canadian asset manager Brookfield, out of bankruptcy in 2018, for $4.6 billion, including debt.

Brookfield Business said in a separate statement it expects to generate about $1.8 billion in proceeds from the sale of its 44% stake in Westinghouse, with the balance distributed among institutional partners. The deal is expected to close in the second half of 2023.

Last year, Reuters reported that Brookfield Business was exploring options including the sale of a minority stake in Westinghouse.

Brookfield Renewable and its partners will pay about $2.3 billion for the deal, whereas Cameco will incur equity costs of about $2.2 billion. Westinghouse’s existing debt structure will remain in place.

Cameco, one of the largest suppliers of uranium fuel, said it would fund the purchase through a mix of cash, debt and equity.
https://www.mining.com/web/cameco-brook ... lion-deal/

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 12 nov. 2022, 15:25

US DOE announces funding for HALEU demonstration

11 November 2022

The USD150 million cost-shared award will see a Centrus Energy Corp subsidiary demonstrate US ability to produce high-assay low-enriched uranium (HALEU) for advanced reactors, with an enrichment cascade producing up to 20 kg of HALEU in operation by the end of next year.


The award includes a USD30 million cost share during the first year to start up and operate 16 advanced centrifuges in a demonstration cascade at DOE's facility in Piketon, Ohio, enabling Centrus subsidiary American Centrifuge Operating to complete the final steps of centrifuge assembly and clear an operational readiness review before enriching uranium hexafluoride gas to produce 20 kg of 19.75% enriched HALEU by 31 December 2023, meeting the demonstration requirements of the ongoing programme. Production will continue in 2024 at a rate of 900 kg of HALEU per year, subject to appropriations, with additional options to produce more material under the contract in future years.

Building the USA's domestic supply chain for HALEU - and reducing reliance on "adversarial nations" will allow the country to grow its advanced reactor fleet and provide more clean, affordable power, Secretary of Energy Jennifer Granholm said. "This demonstration shows DOE's commitment to working with industry partners to kickstart HALEU production at commercial scale to create more clean energy jobs and ensure the benefits of nuclear energy are accessible to all Americans," she added.

HALEU - which is enriched to between 5% and 20% uranium-235 - will be required by many advanced reactor designs that are under development, but it is not yet commercially available in the USA. The DOE projects that the USA will require more than 40 tonnes of HALEU before the end of the decade, with additional amounts required each year, to deploy a new fleet of advanced reactors to support the current administration's goal of 100% clean electricity by 2035. "Establishing a sustainable commercial HALEU production is essential to meeting our long-term objectives," the DOE said.

Piketon is currently the only US facility which is licensed to produce HALEU. The cascade demonstration programme is intended to address near-term HALEU needs and will be used to support fuel qualification testing and DOE-supported advanced reactor demonstration projects, the department said.

DOE said it is pursuing multiple pathways to produce HALEU through its HALEU Availability Program authorized by the Energy Act of 2020 to meet the pressing need for the material, and the Inflation Reduction Act - signed into law by President Joe Biden in August - included a USD700 million support package. Following the HALEU demonstration, the centrifuge technology used at the facility will be available for commercial deployment.
https://www.world-nuclear-news.org/Arti ... onstration

Image

https://www.centrusenergy.com/what-we-d ... d-uranium/

voir aussi : https://www.energy.gov/ne/articles/what ... ce%20HALEU.

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 22 nov. 2022, 00:43

suite de ce post du 3 sept 2022 : viewtopic.php?p=2351372#p2351372
États-Unis: Joe Biden accorde 1,1 milliard de dollars pour sauver une centrale nucléaire

21 nov 2022 BFM

l n’y a pas que la France qui tente de relancer sa filière nucléaire. Selon le Los Angeles Times ce lundi, le président américain Joe Biden a accordé une subvention de 1,1 milliard de dollars (1,07 milliard d'euros) à la compagnie Pacific Gas & Electric Co (PG&E) pour sauver la dernière centrale nucléaire de Californie, dont la fermeture était prévue d’ici 2025.

Le premier réacteur la centrale Diablo Canyon devait être mis hors service en 2024, le second l’année suivante. Mais le gouverneur démocrate de Californie Gavin Newsom a décidé le 16 septembre dernier de prolonger l’exploitation de la centrale pour cinq ans de plus, afin de faire face aux pénuries d’électricité et aux vagues de chaleurs liées au changement climatique.
............................
https://www.msn.com/fr-fr/finance/econo ... 7396d7298c

Avatar de l’utilisateur
mobar
Hydrogène
Hydrogène
Messages : 18223
Inscription : 02 mai 2006, 12:10
Localisation : PR des Vosges du Nord

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

Message par mobar » 22 nov. 2022, 18:55

La roulette californienne : prolonger de 5 ans la durée d'exploitation d'une centrale nucléaire de prés de 40 ans construite à proximité des failles de San Andreas, de Hosgri et de la faille de Shoreline découverte en 2008, longue de 25 km et située à seulement 600 mètres des réacteurs.
:-"
La deuxième, plus problématique et bien nommée, celle de Diablo Canyon (dirigée par la Pacific Gas and Electric) se trouve dans le Comté de San Luis Obispo, à 154 kilomètres de la grosse faille de San Andréas et à 5 kilomètres de la faille de Hosgri, qui risque à tout moment de trembler. Ces deux centrales comptent deux réacteurs chacune, et puisent l’eau de refroidissement dans l’Océan Pacifique. Celle de Diablo Canyon est perchée sur un renfort rocheux de 26 mètres de hauteur, et celle de San Onofre est située au ras de l’eau, protégée par un mur d’environ 7,6 mètres en cas de tsunami. Southern California Edison proclame fièrement que la centrale de San Onofre a été construite pour résister à un tremblement de terre de 7 sur l’échelle de Richter. A titre de comparaison, Fukushima Daiichi au Japon a été construite pour résister à un séisme de magnitude 7,9, mais a été touchée par un de 9,0.
http://hautcourant.com/seisme-et-nuclea ... ornie1610/

Ceux qui veulent visiter la Californie devraient se dépêcher avant qu'elle ne devienne radioactive pour quelques centaines de millénaires! O:)

https://bakchich.info/les-dangers-de-di ... mme-prevu/
https://www.nationalgeographic.fr/scien ... le-big-one
https://youtu.be/0pK01iKwb1U
« Ne doutez jamais qu'un petit groupe de personnes bien informées et impliquées puisse changer le monde, en fait, ce n'est jamais que comme cela que le monde a changé »

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 27 nov. 2022, 11:30

Decision finale d'investissement pour le projet d'extraction d' Uranium in situ '''Lance'' dans le Wyoming, USA.
Peninsula takes FID on restart of Lance uranium project operations in US

By NS Energy Staff Writer 24 Nov 2022

For funding the restart of the uranium in-situ recovery operations, Peninsula Energy announced a A$35m ($23.61m) capital raise

Australia-based Peninsula Energy has made a positive financial investment decision (FID) to restart uranium production operations at its 100% owned Lance projects in the US.

To fund the restart of operations, Peninsula Energy announced an A$35m ($23.61m) capital raise. The amount will be raised through an A$32m ($21.58m) fully underwritten institutional placement and a non-underwritten share purchase plan (SPP) for an additional A$3m ($2.02m).

Located in Wyoming, the Lance uranium projects is estimated to hold resource of 53.7Mlb of U3O8.

According to Peninsula Energy, Lance is the only uranium in-situ recovery (ISR) project in the US that is fully authorised to use the low-pH ISR recovery process.

Peninsula Energy managing director and CEO Wayne Heili said: “It is with a tremendous sense of excitement that we are advancing the Lance Projects back into production.

“Our team has put an enormous amount of work over recent years into the transition to a low-pH ISR operation and we will be confidently moving forward to production.

“The underwritten Placement supports the Board’s investment decision and marks a great milestone for the Company.”

The production operations at the Lance uranium projects are anticipated to begin in Q1 2023 with deliveries to existing customers scheduled to commence in Q4 2023.

Strata Energy, a 100% owned US subsidiary of Peninsula Energy, licenced and developed the Lance uranium project. The commercial uranium production activities at the project started in 2015 and in July 2019, the alkaline in-situ recovery uranium operations were stopped mainly due to lower than expected recoveries.
https://www.nsenergybusiness.com/news/p ... ons-in-us/

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 13 janv. 2023, 22:25

Vogtle 3 projected to enter service in April

12 January 2023

Georgia Power has said the unit is now expected to reach initial criticality during February and to be in service in April, a slight delay from the company's previous projections that the AP1000 unit would be in service during the first quarter of this year.


Image
A view inside Vogtle 3's containment in December 2022 (Image: Georgia Power)

The delay is due to vibrations associated with certain piping within the cooling system, which were discovered during start-up and pre-operational testing at the unit, the Georgia Power parent Southern Company said in a filing to the US Securities and Exchange Commission (SEC) on 11 January. The plant's licensee, Southern Nuclear Operating Company, Inc, is in the process of remediating the vibrations.

The two AP1000s under construction at Vogtle near Waynesboro in Georgia are the first new nuclear units to be built in the USA in over three decades (two units that were also under construction at the VC Summer site in South Carolina were subsequently cancelled). Construction of Vogtle 3 began in March 2013 and unit 4 in November that year. Southern Nuclear and Georgia Power, both subsidiaries of Southern Company, took over management of the construction project in 2017 following Westinghouse's Chapter 11 bankruptcy.

Fuel loading at unit 3 was completed in October, and the projected schedule now depends primarily on the progression of start-up, final component and pre-operational testing, the company said. "New challenges also may arise which may result in required engineering changes or remediation related to plant systems, structures, or components (some of which are based on new technology that only within the last few years began initial operation in the global nuclear industry at this scale). These challenges may result in further schedule delays and/or cost increase," it told the SEC. AP1000s are already in operation at Haiyang and Sanmen in China.

Extending the in-service date for Vogtle 3 beyond the first quarter 2023 is estimated to result in additional base capital costs for Georgia Power of up to USD15 million pre tax per month, the company said.

Vogtle 4 is expected to begin hot functional testing by the end of the first quarter of this year.
https://www.world-nuclear-news.org/Arti ... e-in-April

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 05 févr. 2023, 12:17

UEC wins $17.8m award from Department of Energy to supply uranium concentrates

Staff Writer | December 21, 2022

Image
Uranium Energy’s Palangana ISR uranium mine in south Texas. Credit: Uranium Energy

Uranium Energy Corp. (NYSE American: UEC) has been awarded by the US Department of Energy (DOE) – National Nuclear Security Administration (NNSA) to supply 300,000 pounds of uranium concentrates at $59.50/lb. for a total of $17.85 million. The award is in response to the NNSA’s request for proposals to establish its strategic national Uranium Reserve program.


The Uranium Reserve was originally designed as a 10-year, $1.5 billion, plan to help revitalize the US uranium and conversion industry. The award under the RFP is part of the initial $75 million authorized by Congress in 2020 to advance the US government’s goal of supporting America’s nuclear fuel supply chain and capabilities.

The delivery will be made by book transfer to NNSA in the first quarter of 2023, with US origin uranium currently held in the accounts of UEC.

“We are honoured and delighted to be selected as a domestic producer for this purchase of uranium concentrates by the NNSA and look forward to the further expansion of the Uranium Reserve program in the coming years,” UEC CEO Amir Adnani said in a news release.

He noted that the US nuclear reactor fleet, which provides about 20% of America’s electricity production and over half of its clean energy, imports nearly 60% of its current uranium requirements from Russia, Kazakhstan and Uzbekistan.

“The US overdependence on these imports creates untenable energy and national security risks that need immediate high-priority attention from industry and the federal government,” Adnani said.

“The Uranium Reserve is an important step to help rebuild America’s nuclear fuel capabilities, not only as a backup to mitigate potential supply disruptions, but also to revitalize US capability to fuel the existing reactor fleet as well as new advanced reactors. We are looking forward to the continued improvement in the nuclear fuel markets and further expanding UEC’s production capabilities to help supply America’s uranium needs,” Spencer Abraham, UEC chairman and former US Energy Secretary, added.

UEC is currently the largest diversified uranium company in North America, with in-situ recovery (ISR) mining uranium projects in the US and high-grade conventional projects in Canada. It has two production-ready ISR hub-and-spoke platforms in southern Texas and Wyoming, both anchored by fully operational central processing plants and served by seven ISR uranium projects.

The company is closing in on initial production at its Texas platform following approval last month of an amended radioactive material licence (RML) for the Hobson central processing plant, which would see its capacity rise by four-fold to 4 million pounds of U3O8 (uranium oxide) annually, distinguishing the Hobson plant as having the largest licensed capacity in Texas and the second largest in the country.

Shares of UEC rose 5.4% on the NYSE by 11:20 a.m. ET Wednesday, giving the company a market capitalization of $1.35 billion.
https://www.mining.com/uec-wins-17-85m- ... centrates/

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 25 févr. 2023, 13:48

Reprieved Illinois plants to be uprated
US utility Constellation has announced it will invest USD800 million in new equipment to increase the output of its Braidwood and Byron nuclear power plants in Illinois by some 135 MWe. They were among the Illinois nuclear plants saved from premature retirement by passage of the state Climate and Equitable Jobs Act in 2021.

22 February 2023

Image
The Braidwood (left) and Byron (right) plants (Image: Constellation)

The Braidwood and Byron projects involve replacing the main turbines at the two facilities with state-of-the-art, high efficiency units. The work on the uprates will be carried out in stages during scheduled refueling outages. Constellation expects to see increased output at the plants as early as 2026, with the full uprated output available by 2029.

Constellation said the additional 135 MWe of clean power output is "enough to power the equivalent of 100,000 average homes around the clock every year" and "the equivalent of removing 171,000 gas-powered vehicles from the road per year, or the equivalent of adding 216 intermittent wind turbines to the grid, using Environmental Protection Agency data".

The company said the project is expected "to create work for thousands of skilled union workers during construction while expanding economic activity for surrounding businesses in the plant communities. The additional jobs come on top of the 1200 permanent workers at the two plants".

"These investments in our world class nuclear fleet will allow us to generate more zero-carbon energy with the same amount of fuel and land, and that's a win for the economy, the environment and Illinois families and businesses who rely on our clean energy," said Constellation President and CEO Joe Dominguez. "These projects will help create family-sustaining jobs and are a direct result of state and federal policies that recognise the incredible value of nuclear energy in addressing the climate crisis while keeping our grid secure and reliable."

Since the passage of Illinois' Climate and Equitable Jobs Act in 2021, Congress passed the Inflation Reduction Act (IRA) last year, which provides a base level of support for nuclear energy nationwide. Both pieces of legislation have enabled renewed investment in nuclear energy, Constellation said.

"Support for nuclear in the IRA has made extending the lives of US nuclear assets to 80 years more likely assuming continued support," it said. "It has caused Constellation to examine nuclear uprate opportunities that were cancelled a decade ago due to market forces. The 45Y tax credit for the production of new carbon-free electricity helps make these investments economic".

Byron's pressurised water reactors (PWRs) began commercial operation in 1985 and 1987, and are currently licensed by the US Nuclear Regulatory Commission to operate until 2044 and 2046, respectively. Braidwood's two PWRs entered commercial operation in July and October 1988, respectively. Unit 1 is licensed until 2046, and unit 2 until 2047.

Last October, Constellation announced it is seeking to extend the operating licences of its Clinton and Dresden nuclear power plants, also in Illinois, by an additional 20 years. If approved by the US Nuclear Regulatory Commission, this would enable Clinton's single boiling water reactor (BWR) to continue operating until 2047 and Dresden's two BWRs until 2049 (unit 2) and 2051 (unit 3).
https://www.world-nuclear-news.org/Arti ... be-uprated

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 04 mars 2023, 16:23

suite de ce post du 22 novembre 2022 viewtopic.php?p=2358422#p2358422

il faut sauver le soldat Diablo Canyon en californie.
Regulatory progress for continued operation of Diablo Canyon

03 March 2023

Days after California's energy commission agreed that continued operation of the Diablo Canyon nuclear power plant until at least 2030 was necessary, the US Nuclear Regulatory Commission (NRC) has granted an exemption allowing the two units to continue operating while the agency considers Pacific Gas & Electric Co's (PG&E) application to renew the plant's licence.

Image
Diablo Canyon (US Nuclear Regulatory Commission/PG&E)

.........................
https://www.world-nuclear-news.org/Arti ... ion-of-Dia

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 19 mars 2023, 00:10

suite de ce post du 15 fev 2020 viewtopic.php?p=2295901#p2295901

le site d'Uranium de Alta Mesa au Texas va reprendre la production :
More progress towards US uranium production restarts

16 March 2023

Uranium production will resume at the Alta Mesa processing plant in early 2024, enCore Energy has announced, making it the company's second producing location following resumption of uranium production at the South Texas Rosita plant which is scheduled for later this year. Meanwhile, supply chain issues have meant a slight delay to the restart of commercial production at Peninsula Energy's Lance

Image
Alta Mesa is in located in the South Texas region (Image: enCore)

enCore announced its formal production decision for the resumption of uranium processing at Alta Mesa - which has been on standby since 2013 - on 15 March. The processing plant can reach commercial production levels with limited required capital, from funds on hand, within an estimated 10 months, the company said.

The fully licensed and constructed in-situ leach (ISL) uranium project and central processing facility has a total operating capacity of 1.5 million pounds U3O8 (577 tU) per year. Alta Mesa historically produced nearly 5 million lbs of U3O8 between 2005 and 2013, when full production was curtailed as a result of low uranium prices at the time.

Work already under way at the Texas plant includes the construction of equipment staging areas and drill pads in the fully permitted production authorisation area where initial production will take place. Development drilling, production and injection well installation will start this month, the company said. Its technical staff are identifying equipment maintenance and limited repair needs at the processing plant's ion exchange system, uranium precipitation, drying and packaging circuits in order to restart production.

enCore began initial assessment work on the restart in November 2022 ahead of the closing of its acquisition of Alta Mesa earlier this year, CEO Paul Goranson said. "It is an exciting time at enCore. Our 2023 startup of production at Rosita and now, the decision to proceed at Alta Mesa, will bring a reliable domestic low carbon energy source to South Texas and the United States when it is most needed," he added.

The Alta Mesa project consists of two uranium properties, Alta Mesa and Mesteña Grande, with total measured and indicated resources of 3.41 million pounds U3O8 and inferred resources of 16.79 million pounds.

The company's three fully licensed ISL facilities - Alta Mesa, Rosita and Kingsville Dome, all of which are in Texas - have a combined potential processing capacity of 3.6 million pounds of uranium per year.
https://www.world-nuclear-news.org/Arti ... ion-restar

Avatar de l’utilisateur
energy_isere
Modérateur
Modérateur
Messages : 89982
Inscription : 24 avr. 2005, 21:26
Localisation : Les JO de 68, c'était la
Contact :

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

Message par energy_isere » 08 avr. 2023, 11:32

Démolition aux USA d'un réacteur de recherche septuagénaire :
Demolition of famous US reactor begins
06 April 2023

The Low Intensity Test Reactor (LITR) at Oak Ridge National Laboratory (ORNL) became world-famous when a photographer first captured a blue glow caused by radiation in the pool above the reactor. That photo appeared on the cover of the October 1951 issue of Scientific American.
....................
https://www.world-nuclear-news.org/Arti ... tor-begins

Répondre