Friday, June 26, 2015

The WENRA Findings in Doel-3 and Tihange-2

The question I have is:

1) If they would have just had a paperwork search in Doel-3 and Tihange-2, would they have discovered the flakes in their reactor vessel or inadequate inspection methods questioning if flaws were there?

2) In the USA, is the hydrogen concentration in the metal of such a concentration it would question if flakes could be in US reactors? 

3) What is the status of cladding flaws or corrosion in all USA vessels... 

Why hasn't the NRC required this from our licencees:  
"In response to the findings in the Belgian reactors, WENRA recommended in 2013 the nuclear safety authorities in Europe to request the licensees to verify the material quality and integrity of the RPV in a 2‐step approach: 
1.        A comprehensive review of the manufacturing and inspection records of the forgings of the RPV. 
2.        Examination of the base material of the vessels if considered necessary." 
The NRC stance to date has been, the licencees has scrupulously followed the 1970s NRC new vessel codes and regulations proving they have no flakes. It's as if the agency believes following any old rule or code proves the vessels are safe. I saying, are the 1970s codes and regulation adequate to disclose similar hydrogen flakes in USA vessels?
 
The NRC believes it is not limited to the Belgium vessel manufacturer...it is a similar forging process worldwide.  
NRC INFORMATION NOTICE 2013-19: QUASI-LAMINAR INDICATIONS IN REACTOR PRESSURE VESSEL FORGINGS
 September 22, 2013: While the forgings in the European NPP were manufactured by Rotterdam Dockyard (using ingots supplied by Friedrich Krupp Hüttenwerke (Krupp)), there is no evidence of any factors unique to the forging practices of the Rotterdam Dockyard, or the practices used by Krupp in making the ingots, which suggest an increase in the likelihood of developing quasi-laminar indications during the fabrication process in comparison to other forging manufacturers.
This crux of the issue with my 2.206: The NRC didn't specifically state the licencees would have positively detected hydrogen flakes in new forgings (1970s) and they did a full safety analysis saying there is no safety issues. Course, now we have new inspection technology and we have massively increased our knowledge of metallurgy since first startup. 

I am saying also, it is a unacceptable with our aging fleet of nuclear plant vessels we aren't doing UT inspections in areas outside the weld strips. This might include a representative sample of the vessel walls in the end, after we understand what is going on. I think having greater than 99% of the vessel walls not ever being ud't once operations began is not acceptable.      
2013-19: ASME Code, Section III, requires the UT examination of all forgings during the fabrication process and specifies the acceptance criteria. Per Section III, a forging is considered to be unacceptable if the UT examination detects the presence of reflectors that produced indications resulting from discontinuities in the material accompanied by a complete loss of back reflection from the far side of the structure. The applicable Codes required that the examinations be performed in accordance with ASTM SA-388; this document defines the recording criteria implemented for the RPV forging examinations. Licensees are required to maintain all fabrication records, including NDE and acceptance records; therefore, licensees should have records of the NDE performed on RPV forgings during fabrication. If recordable quasi-laminar indications were detected during the fabrication of any RPV, Section III of the ASME Code would require the indications to be compared to the examination acceptance criteria.

Unacceptable indications would require repair in accordance with the ASME Code, Section III.
So the material characteristics, the strength and ductility of the metal flakes though laboratory testing as we understand it, is being questioned...    
"Safety Case 
Before being allowed to restart both Doel 3 and Tihange 2 reactors, Electrabel shall first submit a Safety Case to the FANC in which it convincingly demonstrates that the presence of hydrogen flakes in the walls of the reactor pressure vessel (RPV) does not compromise its structural integrity. This Safety Case must be structured around three major topics, corresponding each to a chapter of the action plan that Electrabel is due to implement:  
1. The ultrasonic inspection technique of the RPVs: detection, measurement and location of hydrogen-induced flaw indications.
2. Material properties of specimens containing hydrogen flakes: radiation effects and transferability of the test results to the Doel 3 and Tihange 2 RPVs.
3. Structural integrity of a RPV containing hydrogen flakes.
The results of the actions related to theme 1 and theme 2 will provide the input for theme 3."    
Next steps of the review process
After completing every action related to themes 1, 2 and 3 and interpreting the results, the licensee Electrabel will submit its Safety Case to the FANC. The FANC and its technical subsidiary Bel V will thoroughly review this Safety Case using the specific expertise of the recognised inspection organisation AIB Vinçotte (for theme 1), the International Review Board (for theme 2) and an external research team (for theme 3). The FANC will collect opinions from all these parties and take them into account to decide whether Electrabel is allowed to restart the Doel 3 and Tihange 2 units. This process will take another few months. 
 Excerpts: 
Report: Activities in WENRA countries following the Recommendation regarding flaw indications found in Belgian reactors
17 December 2014
01 Background
01.1 The findings in Doel-3 and Tihange-2
In 2012 a new type of in‐service inspection (ISI) of the reactor pressure vessel (RPV) by ultrasonic testing (UT) was introduced in Belgian nuclear power plants. These inspections were introduced earlier in France to search for underclad cracks that may be present in the base metal directly below the interface to the cladding. These underclad cracks, if present, have perpendicular orientation to the surface and were created by the welding process of the austenitic strip cladding onto the ferritic base metal. 
Yet, in the RPV wall of Doel‐3 and Tihange‐2 these inspections did not find any underclad cracks but a large number of flaw indications, located at different distances from the surface in the lower and upper vessel forged rings. As this technique is not suitable to find any flaws far from and nearly parallel to the surface, additional UT with straight beam (0°) was applied. With this technique, thousands of nearly laminar indications were found at larger depths of the base metal, mostly planar and nearly parallel to the surface of the RPV. 
Following a number of investigations and evaluations, the UT indications in the RPV of Doel‐3 and Tihange 2 were unambiguously assigned to hydrogen induced flaws (“hydrogen flakes“). 
01.2       Metallurgical considerations 
According to current knowledge hydrogen flakes may only form during manufacturing of the base metal. The formation of hydrogen flakes is a phenomenon well known to the steel manufacturers and may happen after cooling down the steel from high to ambient temperature, e.g. in the ingot after pouring or in the forged part after the forging operation and heat treatment. Flake formation is driven by the accumulation of hydrogen at segregations or inclusions in the metal. This accumulation of hydrogen is diffusion controlled, so the formation of flakes may have an incubation time of some days or even a couple of weeks at room temperature. 
Due to the main deformation direction during the forging operation, these segregations or inclusions are preferentially stretched in planes parallel to the surface of the forging leading to the formation of laminar hydrogen flakes of the same orientation. The formation of hydrogen flakes depends on a number of factors, the most important being the hydrogen concentration and the size of the ingot, both determining the possible accumulation of hydrogen. This makes large forgings most prone to flaking. Further important factors are a “sensitive” microstructure and the stress state. Despite these known dependences it appears difficult to exclude the formation of flakes in a large forging on the basis of these factors. Therefore, acceptance tests of the base material including appropriate UT is considered the most important step to assure that the parts are free of hydrogen flakes. Therefore the WENRA recommendations as well as the WENRA questionnaire specifically asked for the results of these tests.
Plate material is generally considered much less prone due to smaller ingot sizes and higher degrees of deformation during the rolling operation compared to forging. This results in a less sensitive microstructure. Therefore, components made from plates are outside the scope of further analyses and are not addressed in the recommendations by WENRA referred to below.  
The “flakes” are not considered as “cracks” however they represent a detachment or separation within the material that is assumed to have a similar detrimental effect on the mechanical behaviour of the component. In assessments of the structural integrity of the RPV the flakes are always modeled as cracks. 
01.3       The role of different inspections 
According to international practice, semi‐finished products, i.e. “forgings” or “plates”, are subjected to an acceptance tests before they are assembled (mainly welded) to a component. Considering the possible incubation time of the formation of flakes the acceptance tests of forgings are generally not performed before one month after completion of the forging operation and the “quality heat treatment”. According to international practice of the manufacturers parts showing clear indications of flakes are discarded and will not be assembled. 
These acceptance tests generally comprise UT with different inclinations of the beam to find flaws of any orientation or character. UT with straight beam (0°) is the most appropriate to find planar flaws parallel to the RPV surface such as hydrogen flakes. Besides, UT with angle beam, surface testing (e.g. with magnetic particles) and destructive mechanical tests are performed. This testing appears to be common practice of all manufacturers, at least since the 70ies. 
In general, more UT is performed after each welding operation, e.g. after joining the forgings by circumferential butt welds and after welding of the cladding onto the internal surface of the RPV. These post‐weld tests aim to check for flaws in the welding, including the interfaces and the heat affected zones in the adjacent base materials. These inspections do not repeat testing the full volume of the base metal again as no change is expected compared to the acceptance test of the semi‐finished parts. 
After completion of the components more inspections by UT are performed in the framework of ISI. In all countries the full volume of all axial and circumferential welds and the adjacent heat‐affected zones are inspected. In general the volume of the base metal is not inspected again during ISI, except at VVER plants, where some parts of the base metal are covered by UT (see chapter General Observations). 
Regarding the UT techniques, different inclinations of the beam may be used in order to find planar flaws in different orientations. UT with angle/straight beam is applied to search for flaws orientated nearly perpendicular/parallel to the RPV surface. Furthermore, the techniques may focus on certain zones within the component, e.g. zones close to the surfaces or close to mid‐wall. Any of the special techniques applied may also find flaws in other orientations or other zones not focused on, however with lower sensitivity and probability.  
In case of Doel‐3, the UT dedicated to find underclad cracks with angle beam and focus near the interface to the cladding accidentally found some of the hydrogen flakes that were relatively close to this interface. Yet, it did find only a minor part of all the flakes found later by the dedicated UT using straight beam focussing on various depths. The latter is the technique of choice to find hydrogen flakes and was also used for the acceptance tests of the semifinished parts. Other techniques are considered less appropriate to find any flaws parallel to the RPV surface and in the centre of the wall, where most of the hydrogen flakes are expected, if any. This has to be born in mind when evaluating the UT results of the pre‐ and inservice inspections (PSI and ISI).
02 The WENRA recommendation 
In response to the findings in the Belgian reactors, WENRA recommended in 2013 the nuclear safety authorities in Europe to request the licensees to verify the material quality and integrity of the RPV in a 2‐step approach: 
1.        A comprehensive review of the manufacturing and inspection records of the forgings of the RPV 
2.        Examination of the base material of the vessels if considered necessary. 
Furthermore, it may be considered by the national regulators to extend the scope of analysis to large forgings of other primary equipment.  
Early in 2014, the WENRA Technical Secretariat sent out a questionnaire to the nuclear safety authorities in order to receive some feedback on the actions taken in the member countries. After receiving information from all relevant member countries the status of the actions taken has been summarized

The issue has no relevance for NPP in Romania (pressure‐tube reactor) as well as for Lithuania and Italy (no NPP in operation).
 
The following general conclusions can be drawn from the different answers.  
Regarding step 1, a comprehensive review of the manufacturing and inspection records of the forgings of the RPV: 
       Most member countries had the manufacturing records checked for all or some of those RPV made from forgings. In case the records of some RPV were not checked yet, they are planning to do it until 2016 at the latest.  
       Some operators checked the records of all forgings of the RPV, others only those of the cylindrical rings of the RPV beltline. 
       In all cases where the documentation was checked, it contained sufficient information to conclude that acceptance tests were performed that were capable to find hydrogen flakes. 
       From all the documents that have been checked, member countries responded that either “no flaws”, “no notable (registered) indications”, “no notable indications similar to flakes” or “no unacceptable indications” were documented or found during UT.

Regarding step 2, from an additional examination of the base material of the vessels can be concluded that:
 
       Most member countries performed or planned to perform some kind of additional inspections in response to the findings in Doel‐3 during the upcoming regular ISI taking place every 4 to 10 years.  
       Most member countries decided to have inspected some sample of the cylindrical rings.  
       As far as the inspections were already performed, no indications similar to flakes were found with the engaged inspection technique.

Exceptions were Slovakia and Bulgaria operating VVER units with different kind of ISI programs covering also some parts of the base metal. They do not plan any additional inspections in response to Doel‐3. Yet, Slovakia is considering a re‐evaluation of the regular ISI program. Apparent differences in the ISI program of these countries with respect those following Western regulations are addressed in the following.
 
From the information received from Bulgaria and Slovakia, it appears that there is some significant difference in the scope and periodicity of the ISI performed at RPV of VVER plants (and possibly still following the original inspection plans) on the one hand and of Western PWR plants and those following Western regulations on the other hand: 
       While UT at RPV of Western type reactors is either performed from the inside (PWR plants) or from the outside (BWR plants) (with periodicity 4 to 10 years), UT is performed from the inside and outside in VVER plants. Periodicity at VVER 440 units is every 8 years for both sides with 4 year shift between both inspections, periodicity at VVER 1000 units is every 6 or 8 years from the inside and every 6 or 4 years from the outside. 
       Even more important appear the differences in the area covered by the UT: While all circumferential welds and the adjacent heat‐affected zones are inspected at the RPV of all units, some parts of the base metal are also covered in Slovak and Bulgarian VVER type units. 
In the following section 03.2 an overview of the activities is given country by country. A plant specific overview can be found in Annex 1.

Wednesday, June 24, 2015

Emergency Ultrasonic Inspection Testing For U.S. Reactor Plants like Belgium Reactors

Does the NRC have enough money and manpower to properly administrate the 2.206 process?  
  • Has anyone received any update regarding the inspection findings and corrective actions taken regarding the Belgium Reactor Pressure Vessel quasi flaw indications?

  • Have been any other indications found in any other NPP RPV?

  • Please describe how the vessels are ultrasonically inspected(for cracks)?

  • Explain the testing of capsules.

  • Explain the sensitivity of ultrasonic detector used in vessel inspections…the difference between the Doel 3 and Tihange 2 Nuclear plants and USA plants. What is the best technology?

  • I have issues with the codes and regulations under which some of the vessels were accepted for nuclear plant operation.

  • Please explain the difference between the vessel codes, regulations and an inspection technology of a 1975 vintage reactor to a current new reactor vessel?


Tuesday, June 23, 2015

Entergy's Waterford Tripped Yesterday?

June 25

now up to 80% 

June 24


still shutdown and not a peep with why?

Lot of trouble with Grand Gulf, River Bend and Waterford...lots of signs of financial stress.

Did it trip or was it shutdown? Nothing in the news.


June 4, 2015

The New River Bend Feed Pump Scram?

Employee Sabotage: Knocking Off Line The Waterford Nuclear Plant?

Thursday, June 18, 2015

$350 Billion in Weather Related Damage in Next 20 Years

That is seven nuclear plants...  
US Energy Secretary Ernest Moniz wants Louisiana's ideas for a better power grid 
U.S. Secretary of Energy Ernest Moniz delivers his presentation before the Edison Electricity Institute during its annual convention at the Hyatt Regency in New Orleans, Monday, June 8, 2015. (Photo by Ted Jackson, NOLA.com | The Times-Picayune) (TED JACKSON) 
The U.S. electricity grid faces an array of threats, including rising sea levels, storms and cyberattacks. The federal government is looking to states such as Louisiana to develop ways to protect it, U.S. Energy Secretary Ernest Moniz said Monday (June 8). 
Moniz was one of several featured speakers Monday during the Edison Electric Institute's annual convention in New Orleans. 
Severe weather, cyber threats, the rise of solar and other renewable energy sources, and aging equipment are "a daunting set of complex issues," Moniz said, "but we have to get the electric system right." 
Moniz said hurricanes Katrina and Rita underscored the need to harden substations, high-voltage power lines and other electricity infrastructure from future storms.
Storm threats are only expected to worsen. The U.S. is bracing for more than $350 billion in weather-related damage to the electricity system over the next 20 years, about $20 billion on the Gulf Coast alone, Moniz said.
Old transmission lines need to be replaced with newer, more durable lines, substations have to be built above flood levels, and back-up power systems developed, he said. 
As Louisiana copes with rising sea levels and future storms, it and other states will play a "pivotal role" in developing innovative ways to improve the power grid, he said. 
Moniz said the Energy Department is pushing for a new program that would offer between $3 billion and $5 billion in competitive grants over the next 10 years to states with innovative solutions to enhance energy infrastructure resilience, reliability and security. 
Moniz pointed to New Jersey's effort to develop a microgrid to provide back-up power to its rail system during severe weather. The Energy Department partnered with the state in 2013 to design the system. The partnership was part of the response to Hurricane Sandy, which hit the Northeast in 2012. 
Hardening the electricity grid is not the only place Louisiana could play a role. 
Moniz added Louisiana ports are at the heart of the country's push to export natural gas amid a glut in domestic supply. 
The nation needs to improve its waterways to accommodate traffic from large liquefied natural gas tankers, for example, he said.

Tuesday, June 16, 2015

Indian Point Double or Nothing Philosophy

What about iodine production and xenon burnout?
I don't have inside information, but this fast restart seems to be reckless to me. We will see as time goes by? Do they double or nothing philosophy once a plant gets into trouble...under intense NRC special inspection scrutiny and the state is trying to shut them down.
Indian Point 3 returns to service 
BUCHANAN – Indian Point’s Unit 3 nuclear power plant was returned to service Tuesday afternoon, generating electricity less than 24 hours after the unit automatically shut down following the failure of an electrical switch, ro breaker, in a switchyard outside the plant. 
The switchyard is located across the street from Indian Point and receives electricity generated by the plant before distributing it out to the electrical grid. 
The failure of the breaking led to Indian Points Unit 3 shutting down as a protective measure.
All equipment operated appropriately. There was no release of radioactivity and no threat to the safety of workers or the public. 
Unit 2 continues to operate at full power.
So this is what caused it. It is too bad, this didn't eliminate from Entergy.
Indian Point: Balloon triggered reactor shutdown
BUCHANAN – A balloon that got tangled in electrical wires led to a sequence of events that caused a shutdown of a reactor at the Indian Point nuclear power plant Monday night, regulatory officials said Tuesday. The shutdown occurred at 7:20 p.m., after Consolidated Edison asked Indian Point operators to open an electrical breaker so that workers could safely remove a large Mylar balloon that got tangled in wires leading to the Millwood substation south of the plant. Soon after that breaker was opened, a second breaker opened, resulting an an automatic shutdown of the reactor, according to Neil Sheehan, spokesman for the Nuclear Regulatory Commission. The shutdown occurred without any complications, with all safety systems functioning the way they were supposed to, he said. The reactor went back online at 11:45 a.m. Tuesday, according to Jerry Nappi, a spokesman for Entergy.

ALBANY—One of the two nuclear reactors at the Indian Point nuclear center shut down again on Monday, just weeks after it returned to service following a transformer fire that drew the concern of Gov. Andrew Cuomo and other elected leaders.

When a transformer at the plant caught fire on May 9, Cuomo rushed to the scene and reiterated his long-standing concerns about the plant. Shortly after that, a top state energy official acknowledged that the administration was actively working to pressure the plant to shut down.


The cause of the transformer fire, which sent a dark plume into the sky and frightened nearby residents, is still under investigation. Unit 3 returned to service on May 24.

Power Reactor
Event Number: 51156
Facility: INDIAN POINT
Region: 1 State: NY
Unit: [ ] [3] [ ]
RX Type: [2] W-4-LP,[3] W-4-LP
NRC Notified By: LUKE HEDGES
HQ OPS Officer: DONALD NORWOOD
Notification Date: 06/15/2015
Notification Time: 20:15 [ET]
Event Date: 06/15/2015
Event Time: 19:20 [EDT]
Last Update Date: 06/15/2015
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
BRICE BICKETT (R1DO)

UnitSCRAM CodeRX CRITInitial PWRInitial RX ModeCurrent PWRCurrent RX Mode
3A/RY100Power Operation0Hot Standby
Event Text
REACTOR TRIP DUE TO TURBINE TRIP

"On June 15, 2015 at 1920 EDT, Indian Point Unit 3 received a Turbine trip which directly led to a Reactor trip. Operators entered [plant procedure] E-0, Reactor Trip or Safety Injection. All control rods fully inserted. All safety systems responded as expected. The Auxiliary Feedwater (AFW) system actuated as expected. Offsite power and electrical lineups are normal. No primary or secondary code safety valves lifted. All MSIVs are open and the Main Condensers are being used as the heat sink. The Reactor is in Mode 3 and stable. Unit 2 was unaffected and remains at 100% power. Preliminary investigation determined that Breaker Number 1 in the Ring Bus was intentionally opened [by plant personnel on switching orders from the district operator] due to a problem on W93 [output feeder from Ring Bus]. Subsequently Breaker #3 went open and caused a Turbine/Reactor trip of the Unit."

The licensee notified the NRC Resident Inspector.

Monday, June 15, 2015

Massive Warming In NE Continental Shelf: Implication For Coastal Nuclear Plants?

June 26
The question is, how often will the wind be coming in the Northeast direction...
Dangerous jellyfish appearing at Jersey shore – News
June 23, 2015 at 9:24 pm
It’s not what Harvey Cedars Beach Patrol Captain Randy Townsend usually sees on the resort’s beaches: a risky jellyfish-like creature called a Portuguese man o’war. “When the wind is coming from the northeast, warm water from the Gulf Stream comes to shore”, the post read. According to National Geographic, it moves by floating on the water’s surface, drifting on the currents, catching the wind.
 

June 16

Why can't the main stream media help us understand these interactions? I bet they will say not enough people interested in it. 
The Atlantic Ocean's Cool Phase Will Change The World's Weather

By The Conversation  
May 29th 2015 11:30 AM 
The Atlantic Ocean’s surface temperature swings between warm and cold phases every few decades. Like its higher-frequency Pacific relative El Nino, this so-called “Atlantic Multidecadal Oscillation” can alter weather patterns throughout the world.

The warmer spell we’ve seen since the late 1990s has generally meant warmer conditions in Ireland and Britain, more North Atlantic hurricanes, and worse droughts in the US Midwest.

However a colder phase in the Atlantic could bring drought and consequent famine to the developing countries of Africa’s Sahel region. In the UK it would offer a brief respite from the rise of global temperatures, while less rainfall would mean more frequent summer barbecues. A cold Atlantic also means fewer hurricanes hitting the southern US.

The good news is our latest research, published in the journal Nature, gives us a much better understanding of these Atlantic oscillations. We now know that accelerations in sea-level rise in cities like New York and Boston on the north-east coast of the US are linked to a cold spell in the Atlantic...
Did they make worst the heating of the Long island sound last heat spell.
The Greatest Ever Thermohaline Superstorm Approaching the Millstone Nuclear plant!
Is this implicated with the North Carolina shark attacks...
Accelerated Warming of the Continental Shelf Off Northeast Coast 
June 11, 2015 
A couple of unexplained large scale changes in the waters off the northeast coast of the U.S. have oceanographers perplexed: an accelerated rate of sea level rise compared to most other parts of the world; and the disturbing signs of collapsing fisheries in the region.
A new study by physical oceanographers at Woods Hole Oceanographic Institution (WHOI), published in the Journal of Geophysical Research, shows that water temperatures in this continental shelf region have been trending upward, with unprecedented warming occurring over the last 13 years. The study also suggests a connection between sea level anomalies and water temperature along the continental shelf. 
“The warming rate since 2002 is 15 times faster than from the previous 100 years,” says co-author Glen Gawarkiewicz, a WHOI senior scientist. “There's just been this incredible acceleration to the warming, and we don't know if its decadal variability, or if this trend will continue.” 
The scientists compared their findings with a study of surface waters using data collected by Nantucket Light ship, and other light ships up and down the East Coast between 1880 and 2004, previously analyzed by Steve Lentz of WHOI and Kipp Shearman of Oregon State University. The new study shows that recent accelerated warming is not confined to the surface waters, but extends throughout the water column...






Tuesday, June 09, 2015

Grand Gulf’s Power History: Entergy’s Junk Southern Fleet?


June 12
Finally 100%
Update June 11
Miserable progress now at 94%. Six days to recover from a 50% down-power...  
Update June 10
at 77% today...they ain't making money at this power level. River Bend is at 66%.
Everyone in Region 1 is at 100% power.


*********************
Hmmm, River Bend and Grand Gulf is a struggling single unit facility? 
The whole deal reminds me of Pilgrim's shutdowns and power reductions over their junk new safety relief valves for six years.
It is driving me crazy why the exact same NRC event report came out on June 8 and June 9. Bet you it was a NRC screw-up, entergy came up with a update and the NRC just copied over the original by mistake today.
All plants in the same vicinity?

Grand Gulf's recent power history. 

June 9  95%

8  94%

On June 8th at 8:15 pm Grand Gulf had a fire in their Electro Hydraulic Pump C terminal box. Again in 24 hours the reactor power level being stuck at 95% is highly unusual. 

7  79%

6  50% 

5  100%

River Bend: What A Junk Plant’s Power History Looks Like

7/20
95%
 
7/17
91%
 
7/13

What the hell, back to 63%
7/4
Finally 100% 
7/3
80%
 
7/2
80%
 
7/1
84%  
6/30
75% 
6/29
down to 74% over the weekend
6/28
31% 
6/27
50%
 
6/26
still at 94%
6/25
94%
6/24
94%
6/23
94%
6/22
94%
June 19
94%
June 18
93%
June 17
88%
June 16

River Bend is at 90% power and Indian Point 3 is a 0% power. 

June 15
Wow, great progress over the weekend. Now 89% power. At least Grand Gulf didn't trip.  

June 12
71% power 
Update June 11
At 70% power. Gained a whole lot in 24 hours, a tiny 4% power.  
Update June 10 
Well, there is progress. They are at 66%. Grand Gulf is at 77% power. Can't make money this way?
Everyone in Region 1 is at 100% power.
****************************** 

June 9 33% reactor power
  
The started up on June 8 (actually June 7), 24 hours later they are only at 33% power? This means something is highly abnormal. It is shocking just the before scram, RB were at reduced power on May 30 and 31, upon start up they are drastically at reduced power for over 24 hours. This isn't the looks of a professional outfit? 

8 3%

7 0%

6 0%

5 0%

4 0%

3 0%

2 0%

June 1 92%-this is when they scrammed on feed level control problems.

May 31 81%

30 52%

29 100%

Monday, June 08, 2015

Grand Gulf Fire: Another Entergy plant




Power ReactorEvent Number: 51137
Facility: GRAND GULF
Region: 4 State: MS
Unit: [1] [ ] [ ]
RX Type: [1] GE-6
NRC Notified By: RONNIE WALTERS
HQ OPS Officer: DAN LIVERMORE
Notification Date: 06/08/2015
Notification Time: 00:45 [ET]
Event Date: 06/08/2015
Event Time: 22:59 [CDT]
Last Update Date: 06/08/2015
Emergency Class: UNUSUAL EVENT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
JACK WHITTEN (R4DO)
WILLIAM GOTT (IRD)
ALLEN HOWE (NRR)

UnitSCRAM CodeRX CRITInitial PWRInitial RX ModeCurrent PWRCurrent RX Mode
1NY92Power Operation92Power Operation
Event Text
FIRE IN PROTECTED AREA LASTING GREATER THAN 15 MINUTES

At 2359 EDT on June 7, 2015, the Grand Gulf Nuclear Station declared a Notice of Unusual Event in accordance with Emergency Action Level HU4 for a fire in the protected area lasting greater than 15 minutes. The fire started in the wiring of a terminal box for Electro Hydraulic Pump C, the running pump located in the turbine building. The running pump was then deenergized by operators and the standby pump started. The site fire brigade responded and extinguished the fire. The emergency was terminated at 0030 on June 8, 2015.

The licensee notified state and local agencies and will inform the NRC Resident Inspector.

Notified R4DO (Whitten), NRR EO (Howe), and IRD (GOTT).

Notified DHS SWO, FEMA Ops Center, NICC Watch Officer, and FEMA NWC and Nuclear SSA via email.