ML102170317
| ML102170317 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 08/02/2010 |
| From: | Beltz T Plant Licensing Branch III |
| To: | Flentje F Point Beach |
| beltz T, NRR/DORL/LPL3-1, 301-415-3049 | |
| Shared Package | |
| ML102170323 | List: |
| References | |
| TAC ME3282, TAC ME3283 | |
| Download: ML102170317 (1) | |
Text
Background Information Regarding Licensing Basis NextEra Energy Point Beach, LLC Point Beach Nuclear Plant, Units 1 and 2 (TAC Nos. ME3282 and ME3283)
The NRC staff has identified the following background information regarding the licensing basis for the Point Beach Nuclear Plant (PBNP), Units 1 and 2:
- 1. The original AEC Safety Evaluation for the PBNP states, Onsite fuel storage capacity is sufficient for a minimum of seven days operation of the required safety feature loads which is acceptable. This statement is repeated in a July 11, 1994, letter (NPL 94-0264) from Wisconsin Electric Power Company.
- 2. Prior to license amendments 148 for Unit 1 and 152 for Unit 2, the Technical Specification Basis for Section 15.3.7 stated that in addition to the 11,000 gallon supply in the emergency fuel oil tank, it will be normal for Point Beach to keep one, or the equivalent of one, bulk storage tank full at all times (55,000 gallons which is equal to about a 10 day supply).
- 3. The PBNP final safety analysis report (FSAR) section 8.8.3 states there are two underground storage tanks on site, each with a capacity of 35,000 gallons, and that sufficient fuel oil is maintained between the two tanks to allow one EDG to operate continuously at required load for 7 days.
- 4. The PBNP diesel project design submittal (Rev. 1) dated May 24, 1994 states that Each EDG pair (G01/G02 and G03/G04) will be provided with onsite fuel oil storage that will have the ability, if the tanks are filled to maximum capacity, to allow the operation of either EDG for approximately seven days at maximum rated load or both EDGs at partial load for over five days.
- 5. In an RAI response letter dated March 3, 2010 (ADAMS Accession No. ML1006301332),
related to the extended power uprate (EPU) and EDG loading/fuel oil consumption (LAR-261), NextEra stated the following:
The EDGs will remain within their rated loads with EPU, AFW, and alternative source term (AST) load additions. The EDG fuel oil consumption calculation determined fuel oil requirements based on the applicable EDG rated loads. Fuel oil consumption during the first 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> of operation for Train A EDGs is based on the 2000-hour rating of the EDG. Consumption during the first 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> of operation for Train B EDGs is based on the 195-hour rating. Fuel oil consumption for 7-day operation is based on the 2000-hour rating for Train A EDGs and the 195-hour rating for the first two days of Train B EDGs combined with 2000-hour rating for the remainder of the 7 days. Calculations have demonstrated that with the EPU, AFW and AST modifications, the EDG loading would be within the rated load.