So Grand Gulf power today is 65% and River Bend is 82% power. Waterford had capacity factor issues coming out of the last outage. Remember ANO 2 just completed the longest refueling in the world.
June 28, 2017
Mr. Eric Larson Site Vice President Operations Entergy Operations, Inc. Grand Gulf Nuclear Station P.O. Box 756 Port Gibson, MS 39150
SUBJECT: ASSESSMENT FOLLOW-UP LETTER FOR GRAND GULF NUCLEAR STATION
Dear Mr. Larson:
As a result of our continuous review of plant performance the NRC updated its assessment of Grand Gulf Nuclear Station. The NRC’s evaluation consisted of a review of performance indicators and inspection results. This letter informs you of the NRC’s assessment and its plans for a future inspection at your facility. This letter supplements, but does not supersede, the annual assessment letter issued on March 1, 2017 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17059D517).
The NRC’s review of Grand Gulf Nuclear Station identified that the Unplanned Power Changes Per 7,000 Critical Hours performance indicator has crossed the Green-to-White threshold. The performance issues included in this performance indicator were associated with three unplanned downpower events that occurred in the second quarter of 2016 due to operator actions to reset turbine stop valves, an unplanned downpower and shutdown required by technical specifications that occurred in the third quarter of 2016 due to a failure of residual heat removal subsystem A, and an unplanned downpower that occurred in the first quarter of 2017 due to condensate booster pump seal degradation.
The NRC determined the performance at Grand Gulf Nuclear Station remains in the Regulatory Response Column of the Reactor Oversight Process Action Matrix following a second White performance indicator input in the Initiating Events cornerstone beginning in the fourth quarter of 2016. Therefore, the NRC plans to conduct a supplemental inspection in accordance with Inspection Procedure 95001, “Supplemental Inspection Response to Action Matrix Column 2 Inputs” due to the Uplanned Power Changes Per 7,000 Critical Hours performance indicator. Additionally, the NRC previously indicated our intent to perform a supplemental inspection in accordance with Inspection Procedure 95001 due to the Unplanned Scrams Per 7000 Critical Hours performance indicator crossing the Green-to-White threshold in the third quarter of 2016 as indicated in a letter sent on November 8, 2016 (ADAMS Accession No. ML16313A169). As of the date of this letter we have not been notified that you are ready for this inspection. The objectives of the supplemental inspection are: (1) to assure that the root causes and contributing causes of significant performance issues are understood, (2) to independently...
82, 96, 81, 62%, 100, 100, 100, 100, 100, 100, 100, 100, 90, 91, 91, 80, 74 81, 50, 3, 0 (6/25)
There is 21 days of RB capacity factor. I get on average about a 70% capacity. RB has had terrible capacity factor for years. It goes way beyond insufficient maintenance...they have had procedure and training problems with the ops people.
Maybe they got all the money in the world...but they don't have the expertise to plan and schedule the kinds of maintenance to maintain decent capacity factor...