�,9Hs5�xF�`�j�����m6�=��=������ �ړ|�d����@��#N��ŽP0C�1��x�ER���{�B)�]�+������퇡�. 4.2.20. Operators shut down the reactor on September 26, 2009, to begin the plant’s 16th refueling outage.

To help maintain a healthy, respectful discussion, please focus comments on the issues, topics, and facts at hand, and refrain from personal attacks. 0000001684 00000 n Florida PSC approves plan to decommission Crystal River Nuclear Plant – Daily Energy Insider Florida PSC approves plan to decommission Crystal River Nuclear Plant The Florida Public Service Commission (PSC) approved the plan submitted by Duke Energy Florida to decommission the Crystal River Nuclear Plant (CR3) by 2038. The reactor core is the green rectangle within the capsule-shaped reactor vessel. Full-scale removal of the concrete began at 4:30 am on October 1. This website, and any related content, was prepared by The Nuclear Decommissioning Collaborative (Collaborative) using Federal funds under award ED18HDQ3030014 from the U.S. Economic Development Administration (EDA), U.S. Department of Commerce. Decommissioning includes cleanup of radioactive contaminants and dismantling once the radioactivity has decayed, according to the NRC. Tags: crystalriver, just-right-regulation, NRC, nuclear power, nuclear power safety, The Role of Regulation in Nuclear Plant Safety, turkeypoint. The delamination affected about 15 inches of the 36-inch thick concrete dome, with the maximum gap between layers being about two inches wide. nuclear plant, property and equipment, as well as the trust fund which is paying In May 2019, Duke Energy announced a plan to decommission the Crystal River Nuclear Plant by 2027 instead of 2074 and to contract with Accelerated Decommissioning Partners, a joint venture between NorthStar Group Services and Orano USA, to perform the work. Behind it were 42-inch thick concrete walls and a 36-inch thick concrete dome. Duke, which was not the original owner of Crystal River but acquired it in a merger, opted to try and rebuild it with a project restart date planned for 2011. During a refueling outage that started on September 26, 2009, CR-3 replaced the steam generators (SG), requiring a large hole to be made in the containment structure. And the sequencing used to loosen the tendons prior to cutting the steam generator replacement opening resulted in high localized stresses that exacerbated the design and material conditions to cause cracking. 0000001786 00000 n Seven minutes later, the contractor hired to cut through the containment wall was authorized to begin that work. In front of the steam generator on the right is the pressurizer. xref During a refueling outage that started on September 26, 2009, CR-3 replaced the steam generators (SG), requiring a large hole to be made in the containment structure. 0000008226 00000 n The licensee attempted to repair the damage, but later decided to decommission the reactor. Fuel transfer to the ISFSI was completed in January 2018. We value your privacy. Since the first steam generator replacements more than two decades earlier, so many PWRs had performed this exercise that it was almost routine. Crystal River 3 was an 860-MW pressurized water reactor unit which was originally commissioned in 1977.

The decommissioning timeline is 36 years earlier […], State approves faster plan for closed Crystal River nuclear power plant State regulators on Tuesday approved a plan aimed at dramatically speeding up the decontamination and restoration of the site of Duke Energy Florida’s shuttered Crystal River nuclear power plant. 0000008327 00000 n This event reflects just right regulation by the NRC. 0000001303 00000 n The equipment hatch is wide open much of the time during Refueling mode, so having a damaged section of containment wall above that large opening did not violate regulatory requirements. Controlled Unclassified Information Program (CUI). While far from a treatise on what caused the delamination at Crystal River 3, it shed considerable insight on the analysis of stresses impacted on concrete structures when the embedded tendons are tightened. Containment concrete delamination also occurred during construction at the Turkey Point nuclear plant in Florida in June 1970 and at the Unit 2 reactor at the Kaiga nuclear plant in India in May 1994. State regulators unanimously approved a deal Tuesday to allow Duke Energy Florida to decommission its Crystal River nuclear plant ahead of schedule without extra protections for customers. But if regulators accept their staff’s recommendation, the utility company won’t need to include extra protections for customers. The licensee submitted the CR-3 post-shutdown decommissioning activities report, including the site-specific cost estimate, on December 2, 2013. later.

It operated until 2009, when it was Aside from one technical question by Commissioner Andrew Fay, there was no debate before the vote to approve the deal. On September 30, workers began using high-pressure water—at pressures up to 25,000 pounds per square inch—to cut and remove the concrete from an 8-feet wide by 6-feet tall test section of the concrete containment wall. The NRC Dispatches its Crack Inspection Team. The replacement steam generators would enable the reactor to operate through the end of its current operating license period as well as to the end of a renewed license. Crystal River Unit 3 Nuclear Generating Plant (CR-3) was a 2,609 Mwt, pressurized water reactor that was licensed to operate from December of 1976 to February 20, 2013. Under its agreement with ADP CR3, Duke will remain owner of the retired The Nuclear Regulatory Commission (NRC) was reviewing the owner’s application to extend the reactor operating license for another 20 years. The NRC’s Generic Communications program is its means for conveying operating experience to plant owners. ADP CR3 becomes the NRC licensee responsible for decommissioning the plant while meeting all state and federal regulations. UCS’s Role of Regulation in Nuclear Plant Safety series of blog posts is intended to help readers understand when regulation played too little a role, too much of an undue role, and just the right role in nuclear plant safety. The money would be drawn from a nearly $660 million trust fund that Duke Energy customers paid into between 1977 and 2001.

Restart of the plant would have been delayed as the NRC belatedly sought to acquire that awareness, or restart of the plant would have happened lacking the NRC’s independent verification that proper safety levels had been restored. 0000003505 00000 n Dave Lochbaum, former director of the UCS Nuclear Safety Project, is one of the nation's top independent experts on nuclear power. 0000006591 00000 n

DPR-72 10 CFR 50.12 March 28, 2014 3F0314-05 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Subject: Crystal River Unit 3 - Request for Exemptions from 10 CFR 50.82(a)(8)(i)(A) and 10 CFR 50.75(h)(2) References: 1. During the refueling outage, the original steam generators were scheduled to be replaced. While it is not uncommon for the NRC to send out at least an Information Notice to owners about problems like that experienced at Crystal River 3, the NRC did not exercise this option in this case. <]/Prev 947566>> The owner’s decision to permanently retire rather than repair the plant without the NRC’s thumb on either side of the scales. An early step involved loosening and removing the horizontal tendons from the containment wall in the region where the opening would be cut. They continued cooling the reactor water down over the next few hours and entered Refueling mode at 4:51 pm that afternoon. Crystal River 3 was an 860-MW pressurized water reactor unit These tendons functioned like reinforcing bands—workers tightened, or tensioned, them to give the concrete wall additional strength against the internal pressure that could occur during an accident.

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To help maintain a healthy, respectful discussion, please focus comments on the issues, topics, and facts at hand, and refrain from personal attacks. 0000001684 00000 n Florida PSC approves plan to decommission Crystal River Nuclear Plant – Daily Energy Insider Florida PSC approves plan to decommission Crystal River Nuclear Plant The Florida Public Service Commission (PSC) approved the plan submitted by Duke Energy Florida to decommission the Crystal River Nuclear Plant (CR3) by 2038. The reactor core is the green rectangle within the capsule-shaped reactor vessel. Full-scale removal of the concrete began at 4:30 am on October 1. This website, and any related content, was prepared by The Nuclear Decommissioning Collaborative (Collaborative) using Federal funds under award ED18HDQ3030014 from the U.S. Economic Development Administration (EDA), U.S. Department of Commerce. Decommissioning includes cleanup of radioactive contaminants and dismantling once the radioactivity has decayed, according to the NRC. Tags: crystalriver, just-right-regulation, NRC, nuclear power, nuclear power safety, The Role of Regulation in Nuclear Plant Safety, turkeypoint. The delamination affected about 15 inches of the 36-inch thick concrete dome, with the maximum gap between layers being about two inches wide. nuclear plant, property and equipment, as well as the trust fund which is paying In May 2019, Duke Energy announced a plan to decommission the Crystal River Nuclear Plant by 2027 instead of 2074 and to contract with Accelerated Decommissioning Partners, a joint venture between NorthStar Group Services and Orano USA, to perform the work. Behind it were 42-inch thick concrete walls and a 36-inch thick concrete dome. Duke, which was not the original owner of Crystal River but acquired it in a merger, opted to try and rebuild it with a project restart date planned for 2011. During a refueling outage that started on September 26, 2009, CR-3 replaced the steam generators (SG), requiring a large hole to be made in the containment structure. And the sequencing used to loosen the tendons prior to cutting the steam generator replacement opening resulted in high localized stresses that exacerbated the design and material conditions to cause cracking. 0000001786 00000 n Seven minutes later, the contractor hired to cut through the containment wall was authorized to begin that work. In front of the steam generator on the right is the pressurizer. xref During a refueling outage that started on September 26, 2009, CR-3 replaced the steam generators (SG), requiring a large hole to be made in the containment structure. 0000008226 00000 n The licensee attempted to repair the damage, but later decided to decommission the reactor. Fuel transfer to the ISFSI was completed in January 2018. We value your privacy. Since the first steam generator replacements more than two decades earlier, so many PWRs had performed this exercise that it was almost routine. Crystal River 3 was an 860-MW pressurized water reactor unit which was originally commissioned in 1977.

The decommissioning timeline is 36 years earlier […], State approves faster plan for closed Crystal River nuclear power plant State regulators on Tuesday approved a plan aimed at dramatically speeding up the decontamination and restoration of the site of Duke Energy Florida’s shuttered Crystal River nuclear power plant. 0000008327 00000 n This event reflects just right regulation by the NRC. 0000001303 00000 n The equipment hatch is wide open much of the time during Refueling mode, so having a damaged section of containment wall above that large opening did not violate regulatory requirements. Controlled Unclassified Information Program (CUI). While far from a treatise on what caused the delamination at Crystal River 3, it shed considerable insight on the analysis of stresses impacted on concrete structures when the embedded tendons are tightened. Containment concrete delamination also occurred during construction at the Turkey Point nuclear plant in Florida in June 1970 and at the Unit 2 reactor at the Kaiga nuclear plant in India in May 1994. State regulators unanimously approved a deal Tuesday to allow Duke Energy Florida to decommission its Crystal River nuclear plant ahead of schedule without extra protections for customers. But if regulators accept their staff’s recommendation, the utility company won’t need to include extra protections for customers. The licensee submitted the CR-3 post-shutdown decommissioning activities report, including the site-specific cost estimate, on December 2, 2013. later.

It operated until 2009, when it was Aside from one technical question by Commissioner Andrew Fay, there was no debate before the vote to approve the deal. On September 30, workers began using high-pressure water—at pressures up to 25,000 pounds per square inch—to cut and remove the concrete from an 8-feet wide by 6-feet tall test section of the concrete containment wall. The NRC Dispatches its Crack Inspection Team. The replacement steam generators would enable the reactor to operate through the end of its current operating license period as well as to the end of a renewed license. Crystal River Unit 3 Nuclear Generating Plant (CR-3) was a 2,609 Mwt, pressurized water reactor that was licensed to operate from December of 1976 to February 20, 2013. Under its agreement with ADP CR3, Duke will remain owner of the retired The Nuclear Regulatory Commission (NRC) was reviewing the owner’s application to extend the reactor operating license for another 20 years. The NRC’s Generic Communications program is its means for conveying operating experience to plant owners. ADP CR3 becomes the NRC licensee responsible for decommissioning the plant while meeting all state and federal regulations. UCS’s Role of Regulation in Nuclear Plant Safety series of blog posts is intended to help readers understand when regulation played too little a role, too much of an undue role, and just the right role in nuclear plant safety. The money would be drawn from a nearly $660 million trust fund that Duke Energy customers paid into between 1977 and 2001.

Restart of the plant would have been delayed as the NRC belatedly sought to acquire that awareness, or restart of the plant would have happened lacking the NRC’s independent verification that proper safety levels had been restored. 0000003505 00000 n Dave Lochbaum, former director of the UCS Nuclear Safety Project, is one of the nation's top independent experts on nuclear power. 0000006591 00000 n

DPR-72 10 CFR 50.12 March 28, 2014 3F0314-05 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Subject: Crystal River Unit 3 - Request for Exemptions from 10 CFR 50.82(a)(8)(i)(A) and 10 CFR 50.75(h)(2) References: 1. During the refueling outage, the original steam generators were scheduled to be replaced. While it is not uncommon for the NRC to send out at least an Information Notice to owners about problems like that experienced at Crystal River 3, the NRC did not exercise this option in this case. <]/Prev 947566>> The owner’s decision to permanently retire rather than repair the plant without the NRC’s thumb on either side of the scales. An early step involved loosening and removing the horizontal tendons from the containment wall in the region where the opening would be cut. They continued cooling the reactor water down over the next few hours and entered Refueling mode at 4:51 pm that afternoon. Crystal River 3 was an 860-MW pressurized water reactor unit These tendons functioned like reinforcing bands—workers tightened, or tensioned, them to give the concrete wall additional strength against the internal pressure that could occur during an accident.

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