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PROS 2015 Summer Meeting

2015 PROS Meeting will be in Texas.

A NASA tour is planned. You will love the Gulf Coast. Plan your meeting now, and have some fun too.

Read page two. News continues, don't stop on page one.


At 1730 CDT on August 26, 2014, Browns Ferry Unit 1 experienced a turbine trip resulting in an automatic reactor scram. The cause of the turbine trip was a control valve fast closure signal that was generated by a turbine trip on generator neutral over voltage signal. The Main Steam Isolation Valves (MSIVs) remained open with the main turbine bypass valves controlling reactor pressure. The Reactor Feedwater Pumps are in service to control reactor water level.

"Primary Containment Isolation Systems (PCIS) Groups 2, 3, 6, and 8 isolation signals were received. Upon receipt of these signals, all required components actuated as required with the exception of Standby Gas Treatment (SBGT) train A, which is under a clearance for planned maintenance. Neither High Pressure Coolant Injection (HPCI) nor Reactor Core Isolation Cooling (RCIC) initiation signals were received. Initially, three Main Steam Relief Valves (MSRVs) opened to control the pressure surge and subsequently reclosed.

This event requires a 4 hour report per 10 CFR 50.72(b)(2)(iv)(B), 'Any event or condition that results in actuation of the reactor protection system (RPS) when the reactor is critical except when the actuation results from and is part of a pre-planned sequence during testing or reactor operation.

NRC Approves Power Uprate For Peach Bottom Atomic Power Station - 280 MWe Gained

The Nuclear Regulatory Commission has approved a request by Exelon Generation Co. to increase the generating capacity of Peach Bottom Atomic Power Station, Units 2 and 3, by 12.4 percent each.

The NRC staff determined Exelon could safely increase the reactors’ output primarily by upgrading certain plant systems and components. NRC staff also reviewed Exelon’s evaluations showing the plant’s design can handle the increased power level.

The NRC’s safety evaluation of the plant’s proposed power uprate focused on several areas, such as the nuclear steam supply systems, instrumentation and control systems, electrical systems, accident evaluations, radiological consequences, operations and training, testing, and technical specification changes. For added confidence in the analysis, the NRC staff also conducted independent confirmatory calculations and audits of selected areas.

The power uprate authorizes Peach Bottom, located approximately 18 miles south of Lancaster, Pa., to increase each boiling water reactor’s generating capacity by approximately 140 megawatts electric. Exelon plans to implement Unit 2’s uprate during the fall 2014 refueling outage and Unit 3’s uprate during the fall 2015 refueling outage.

The NRC published a notice about the power uprate application in the Federal Register on April 9, 2013. The agency’s evaluation of the Peach Bottom uprate will be available through the NRC’s ADAMS electronic document database by entering Accession Number ML14133A046.

August 25, 2014

Zion Nuclear Station Decommissioning Update

By Bob Meyer

August 8, 2014, the NRC completed an inpsection report of the Zion Station. The NRC inspectors reviewed the licensee’s execution of the site decommissioning project focusing on the radiological environmental monitoring program, spent fuel pool safety and spent fuel transfer operations, aspects of the occupational radiation exposure control program, the review of a radioactive waste shipment, and implementation of the corrective action program.

The Zion Nuclear Power Station is a permanently shut-down and defueled power reactor facility that was maintained in a safe storage (SAFSTOR) condition with spent fuel in wet storage from 1998 through 2010. In 2011, active decommissioning began and continued to varying degrees throughout the inspection period. In late 2013, the spent fuel transfer campaign commenced and is scheduled to continue throughout 2014.

Zion had completed loading a total of 25 of 61 planned spent fuel VCCs on the ISFSI pad. The last heat-up test of the SFP gathered data for the analysis of SPF heat removal, which indiated that more than 10 days was conservatively available before pool water would begin to boil on a loss of cooling event without makeup water added.


At 0757 CDT on 8/25/14, LaSalle Main Control Room received a fire alarm from the Unit 2 Reactor Building 807 foot elevation. Operators dispatched and confirmed no fire at 0817 CDT (20 min). At 0812 CDT (15 min) an unusual event (HU3) was declared due to not having verified no fire within 15 minutes of the alarm. No fire was confirmed and plans are in progress to terminate event.

The NRC Resident Inspector has been notified. The licensee notified the Illinois Emergency Management Agency.

Notified DHS SWO, FEMA Operation Center, FEMA National Watch Center, NICC, Nuclear SSA via email.


"At 0915 CDT on 8/25/2014, the LaSalle Shift Emergency Director terminated the Unusual Event (HU3) which had been declared at 0812 CDT. No fire present was verified at 0817 CDT and required hourly firewatch is in place. Maintenance Department has begun efforts to locate and replace faulted detector or other degraded component."

The licensee notified the NRC Resident Inspector and the Illinois Emergency Management Agency.

Notified R3DO(Passehl), NRREO (Hiland), IRD (Gott). Notified DHS SWO, FEMA Operation Center, FEMA National Watch Center, NICC, Nuclear SSA via email.


10 CFR Section: 50.72(a) (1) (i) - EMERGENCY DECLARED

RX Type: [1] GE-5,[2] GE-5

Duke Energy to sell non-regulated Midwest generation business to Dynegy


Duke Energy today announced Dynegy will buy its non-regulated Midwest Commercial Generation Business for $2.8 billion in cash, which includes ownership interests in 11 power plants and Duke Energy Retail Sales, the company’s competitive retail business in Ohio.

“This transaction is an important milestone in our strategy to exit the merchant generation business," said Marc Manly, president of Duke Energy’s Commercial Businesses. “In the coming months, we will continue to safely operate these plants and work closely with Dynegy to obtain the regulatory approvals necessary to close the transaction. We will also be working with employees and community leaders to ensure a smooth transition for all stakeholders.”

“These power plants have been important to Duke Energy and our Midwest customers for many years, and I am proud of the employees who have operated these plants well in challenging market conditions,” said Lynn Good, president, CEO and vice chairman of Duke Energy.

“The Duke Energy employees at these plants are committed, hardworking men and women and we look forward to engaging their expertise and talents as we grow our company,” said Dynegy’s President and CEO Robert C. Flexon. “In addition, we intend to honor the terms of the collective bargaining agreements at the plants.”

Nuclear expert calls for California plant to shut down amid earthquake fears

Diablo Canyon

This file photo, shows Pacific Gas and Electric's Diablo Canyon Nuclear Power Plant. Michael Peck, a senior federal nuclear expert, is urging regulators to shut down California's last operating nuclear plant until they can determine whether the facility's twin reactors can withstand powerful shaking from earthquake faults. (AP Photo/Michael A. Mariant, File)

LOS ANGELES -- A senior federal nuclear expert is urging regulators to shut down California's last operating nuclear plant until they can determine whether the facility's twin reactors can withstand powerful shaking from nearby earthquake faults.

Michael Peck, who for five years was Diablo Canyon's lead inspector, says in a confidential report that the Nuclear Regulatory Commission is not applying safety rules it set out for the plant's operation.

The document, which was obtained and verified by The Associated Press, does not say the plant is unsafe. Instead, according to Peck's analysis, no one knows whether the facility's equipment can withstand strong shaking from those faults -- the potential for which was realized decades after the facility was built.

Continuing to run the reactors, Peck writes, "challenges the presumption of nuclear safety."


This is to inform the Commission that a Confirmatory Order (CO) will be issued to Entergy Nuclear Operations, Inc. (Entergy), on or about July 21, 2014. The CO will confirm commitments reached as part of an alternative dispute resolution (ADR) mediation settlement agreement between Entergy and the Nuclear Regulatory Commission (NRC).

China hones in on Bradwell as site for new atomic reactor

China’s nuclear power heavy weights are looking to build an atmomic reactor in 

Maldon and Burnham Standard: Inside Bradwell power station.Bradwell, according to national reports

Bradwell’s party decomissioned Magnox power plant is said to be a new favourite for a Chinese-built and designed plant.

French utility company EDF and Beijing’s early talks identified the area as a likely site for a new station.

Elsewhere in the county, China General Nuclear Power Corporation and China Nuclear Corporation have agreed to help fund the UK’s first new £16bn atomic power plant in nearly two decades.

It will be built at Hinckley Point, Somerset, by EDF.

Maldon Standard

Gori nuclear reactor halts from influx of rain water

A nuclear reactor on South Korea‘s southeast coast halted operation on Monday as rainwater flooded in, plant operators said.

The Gori-2 nuclear power plant, about 450 kilometers southeast of Seoul, was manually shut down at about 3:54 p.m. No immediate threats of a radiation leak have been detected, according to the Korea Hydro and Nuclear Power Co.

“As excessive water flowed into a building that takes in seawater to cool down turbine steam, we decided to manually halt the operation of the nuclear reactor for the safety of the electrical equipment,” the KHNP said.

Heavy rain pummeled Busan, where the nuclear reactor is located, and its surrounding area on Monday, with rain falling at a maximum rate of 130 millimeters per hour. It is unusual that a nuclear reactor is shut down from heavy rain.

The Gori-2 reactor started its commercial operation in July 1983. 

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