ML20043H254

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Staff Requirements Memo Re SECY-90-146, Evolutionary & Passive Advanced LWR Resources & Schedules
ML20043H254
Person / Time
Issue date: 06/06/1990
From: Chilk S
NRC OFFICE OF THE SECRETARY (SECY)
To: Taylor J
NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO)
References
REF-10CFR9.7 NUDOCS 9006220315
Download: ML20043H254 (3)


Text

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NUCLEAR REGULATORY COMMISSION a a W ASHING T ON. D.C. 20$$5 p*,

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RELEASED TO THE PDR f

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MEMORANDUM FOR:

James M. Taylor Executive Director for Operations FROM:

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Chilk, Secretary

SUBJECT:

SECY-90-146 - EVOLUTIONARY AND PASSIVE ADVANCED LIGHT WATER REACTOR RESOURCES AND SCHEDULES

-1 The Commission (with all Commissioners agreeing) has disapproved the proposed revised process for the review of evolutionary and passive advanced light-water reactor (ALWR) projects.

Chairman Carr and Commissioners Roberts, Rogers and Curtiss agree that the process established by the Commission, as reflected in L

SECY-90-065,-represents the preferred approach on how the NRC p

should proceed with these reviews.

Consistent with the Commission's decision'on SECY-89-334 (12/15/89 SRM) for the passive plants, highest priority should be awarded to the EPRI Requirements Document.

The major technical and policy issues l-should be formally resolved in the context of the EPRI review.

'The staff should implement the process presented in SECY-90-065, h

with the understanding that.the staff should not be precluded from keeping abreast of information:and activities related to a specific design which could prove useful in conducting the EPRI review and in preparing for review of~that' specific design.

1, Additionally, in conducting its review of the EPRI Requirements Documents and then specific designs, staff'may continue with its

review activities on any matters which are unaffected by technical.or policy issues awaiting ACRS review and comment or l

Commission decision.

l Commissioner Remick preferred the parallel approach over the serial -- one step at a time -- approach to reviewing advanced

. reactor designs.

The parallel review approach would have minimal impact on the review schedule for the EPRI' Requirements Document, but it would significantly reduce the schedule for certifying.

. proposed plant designs.

If the Commission and the ACRS are kept

_ fully and timely apprised on all policy and unique technical 4

issues, the parallel approach should result in similar and expeditious Commission decisions, o.y.

SECY NOTE:

TO BE MADE-PUBLICLY AVAILABLE IN 10 WORKING DAYS FROM THE DATE OF THIS SRM.

(gV 9006220313 poogos PDR 10CFR PT9.7 PDC Lg

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0 In regard to the AP-600 and the SBWR passive plant developmental efforts, it is Commissioner Remick's understanding that the vendors have been active participants in the development of the EPRI Requirements Document for the passive plant designs.

In addition EPRI has been and will continue to be an active participant in the design of the passive reactors (e.g.,

committed to contribute $30 million each to the design of the AP-600 and the SBWR passive plants).

As a result, the vendors are fully aware of all industry requirements.

Westinghouse, for examplet has indicated that it will meet all requirements identified by the EPRI Requirements Document.

The only potential deviation would result if the EPRI's document does not go far enough in assuring public health and safety as the vendor would i

like (e.g., use of hydrogen igniters and the location of the core makeup tanks).

It is Commissioner Remick's understanding that these issues, if not already resolved, will be resolved in the very near term.

The Commission's concern that the vendor's design will precede the definition of industry's needs is therefore not significant.

The Commission's decision of a serial review process significantly restrains Commission and ACRS input e

and' influence on the final design of future reactor concepts and could preclude the availability of nuclear power plants with passive designs features at the time that U.S. utilities may-need l

to consider the nuclear option for essential capacity additions.

l Chairman Carr (with Commissioner Curtiss concurring) expressed concern that staff's description of the level of design detail necessary for certification of a design appears insufficient to meet the level of. design detail which is required by 10 CFR L

52.47 (a) (2).

The detail required must be sufficient for the L

Commission to reach a final conclusion on all safety questions associated with the design before certification.

The proposed implementation plan now under preparation, should focus on this l;

issue as well as the level of detail necessary to promote standardization and should address the extent of detail needed in j

. the balance-of-plant description.

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With regard to resources, the Chairman urged staff to apply l

available resources in a way that will meet or improve on the J

schedules for completion of the EPRI Design Requirements L

Documents.

Commissioner Rogers would approve the staff's recommended reprogramming of resources to achieve gains in the e

L review schedules.

However, his opinion on the sufficiency and l

. comprehensiveness of agency resources for such reviews is still pending awaiting the results of staff's response to his April 16, 1990 request for the numbers of qualified reviewers by reactor 9

type in NRC.

Commissioner Roberts (with Commissioner Curtiss concurring) noted his concern that there may not be sufficient incentive for EPRI a--

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to pursue ~early: resolution of some issues.

As noted in the May

-25, 1990;SRM on~SECY-90-139, he would beiinterested in hearing l

from;the staff on ways _the Commission =could streamline the

-resolution process.

cc:

Chairman Carr Commissioner Roberts Commissioner Rogers Commissioner Curtiss Commissioner Remick OGC:

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