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The 73rd and final multi-purpose canister (MPC) of used nuclear fuel from Southern California Edison’s (SCE’s) twin unit San Onofre Nuclear Generating Station (SONGS) in the USA has been placed in its designated below-grade storage vault., US-based Holtec International said on 7 August. 

Date: Friday, 14 August 2020
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The final canister of used fuel from the shut-down San Onofre Nuclear Generating Station (SONGS) has now been transferred into dry storage, marking a milestone for the decommissioning of the California site.

Date: Wednesday, 12 August 2020
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Dismantlement of the San Onofre Nuclear Generating Station is to begin in February, Southern California Edison (SCE) has announced. This follows the receipt in October of the final permit required for the decommissioning and dismantlement of the plant which closed in 2013.

Date: Saturday, 25 January 2020
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The California Coastal Commission has approved a coastal development permit for Southern California Edison's San Onofre nuclear power plant, enabling decommissioning of the plant to begin. The utility said it expects the dismantling of major structures at the two-unit plant to begin next year.

Date: Tuesday, 22 October 2019
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US utility Southern California Edison (SCE) has awarded a 20-month contract to consultancy company North Wind to develop a strategic plan to assess the feasibility of relocating used nuclear fuel from the San Onofre nuclear plant to a commercially reasonable, off-site facility.

Date: Tuesday, 18 June 2019
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US power utility Southern California Edison (SCE) has been approved to resume efforts to transfer used nuclear fuel at the two unit San Onofre Nuclear Generating Station (SONGS) into dry storage, the Nuclear Regulatory Commission (NRC) said on 21 May SCE has yet to determine when it will officially restart loading the nuclear fuel into canisters for transfer to its storage facility. “The ultimate decision on when fuel transfer operations will resume will be made following a careful review of operational readiness by SCE and our contractor,” SCE said in a press release. 

Date: Tuesday, 28 May 2019
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The US Nuclear Regulatory Commission (NRC) announced on 24 August that it will conduct a special inspection at the site of the San Onofre Nuclear Generating Station (Songs), after a near-accident occurred on 3 August during the transfer of highly radioactive used fuel. NRC inspectors will review what happened when a canister loaded with used fuel became jammed while being lowered into a storage vault. It narrowly avoided being dropped 18 feet. The incident was revealed during a community engagement panel by safety inspector David Fitch. Tom Palmisano, chief nuclear officer of Southern California Edison (SCE), described the event as “a serious near miss.”

Date: Tuesday, 28 August 2018
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California's last nuclear plant, Pacific Gas and Electric’s (PG&E’s) Diablo Canyon plant in San Luis Obispo County, will close in 2025, the California Public Utilities Commission (CPUC) said on 11 January. The CPUC's five commissioners unanimously approved a revised version of the joint proposal for Diablo Canyon's closure that was put forward by PG&E together with labour and environmental organisations.

Date: Tuesday, 16 January 2018
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An International Chamber of Commerce (ICC) arbitration panel on 13 March awarded California utilities $125m in a lawsuit claiming that Mitsubishi Heavy Industries (MHI) supplied faulty steam generators contributing to the closure of the San Onofre nuclear generating station. However, this was far less than the $7.6bn sought by Southern California Edison and its partners.

Date: Friday, 17 March 2017
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Los Angeles-based engineering and construction firm AECOM and Salt Lake City-based EnergySolutions announced on 20 December they  had been selected by Southern California Edison (SCE) as general contractor in the decommissioning of the San Onofre Nuclear Generating Station (SONGS), through their joint venture, SONGS Decommissioning Solutions (SDS). SCE, which owns the majority stake in the plant shares responsibility for decommissioning with San Onofre co-owners San Diego Gas & Electric and the city of Riverside, and former co-owner the city of Anaheim. The contract is estimated at $4.4bn.

Date: Thursday, 22 December 2016
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