MDEP HPR1000 WG Programme Plan 2020 -2022

Multinational Design Evaluation Programme
HPR1000 WG Programme Plan 2020 - 2022

Date: 27 November 2020
Validity: until next update or archiving
Version: 2

MDEP
HPR1000 WG
Programme Plan2020 - 2022
Related to: HPR1000 Working Group Activities

HPR1000 WG Programme Plan 2020 - 2022

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MDEP HPR1000 WG Programme Plan 2020 -2022

Multinational Design Evaluation Programme
HPR1000 WG Programme Plan 2020 - 2022

Date: 27 November 2020
Validity: until next update or archiving
Version: 2Multi-National Design Evaluation Programme
HPR1000 Working Group (HPR1000WG)
1. HPR1000WG Goals• Leverage national regulatory resources by sharing information and experience on the regulatory
safety design reviews of the HPR1000 with the purposes of enhancing the safety of the design andenabling regulators to make timely licensing decisions to ensure safe designs:- Exchange experience on licensing process and design reviews, lessons learnt, and designrelated construction, commissioning, and operating experience-Work to understand the differences in regulatory safety review approaches in each country tosupport potential use of other regulators safety design evaluations, where appropriate-•

Look for opportunities to provide input to issue-specific working groups on potential topics
of significant interest
Promote safety and standardisation of designs through cooperation (consideration should be given topromoting harmonisation of regulatory practices where there may be a safety benefit):- Identify and understand key design differences including those originating from regulatory
requirements and then documenting the reasons for differences in regulatory requirements-Document common positions on aspects of the review to enhance safety and standardisationof designs-

Coordinate communications on MDEP views and communicate common positions to vendor
and operators regarding the basis of safety evaluations and standardisation-Use experience gained in learning about similarities and differences in licensing frameworks
to identify potential paths forward to harmonise licensing approaches and practices when
there is a safety benefit

2. Intermediate Objectives- Share information including evaluations among HPR1000WG members to leverage resources
and focus design reviews on safety issues including Fukushima-related issues andcommissioning activities in regulatory areas that are significant for licensing decisions-

Encourage improvement of designs through design safety review cooperation when there is aclear safety benefit-

Enhance multilateral cooperation in licensing frameworks to harmonise licensing approaches
and practices when there is a safety benefit-

Document the activities of the technical expert subgroups through technical reports andcommon positions

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MDEP HPR1000 WG Programme Plan 2020 -2022

Multinational Design Evaluation Programme
HPR1000 WG Programme Plan 2020 - 2022

Date: 27 November 2020
Validity: until next update or archiving
Version: 2

3. 2020 - 2022 MDEP HPR1000WG Work Plan• Communicate review results and timelines for sharing regulatory evaluations of the HPR1000 among
all HPR1000 WG member countries•

The following technical topics will be discussed in 2020 - 2022:
1. Fukushima accident lessons learnt
2. Severe Accidents
3. Unique design features affecting safety
4. Treatment of external and internal events
5. First Plant Only Tests (FPOT)
6. High Integrity Components (HIC)•Following additional discussions on the topics above, two HPR1000 technical expert subgroups(TESG) have been established.

••-

Severe Accidents (SA) TESG-Internal and External Hazards TESG

These TESGs should perform the following:-The technical expert subgroups should provide a work plan including description and scopeof issues to be addressed to the HPR1000WG and report on the status at every HPR1000WG
meeting-

Meet regularly to exchange information on relevant aspects of the design review status-

Share relevant evaluations when they become available-Produce technical expert subgroup technical reports on subjects that the subgroup deems
important to safety to identify and document similarities and differences among designs,
regulatory safety review approaches and resulting evaluations-Produce MDEP common positions, especially on important safety evaluation findings-

Post evaluations, positions, reports, etc. in the MDEP library

Follow the construction and commissioning progress of HPR1000- Share significant design changes, if any, in construction and commissioning-•

Provide feedback on construction and commissioning experience

When necessary, plan and conduct design-related technical site visits or inspections to ensure
adequate design configuration control, quality assurance, and acceptability of structures, systems, andcomponents of the HPR1000 (appropriate coordination with VICWG)

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MDEP HPR1000 WG Programme Plan 2020 -2022

Multinational Design Evaluation Programme
HPR1000 WG Programme Plan 2020 - 2022

•Date: 27 November 2020
Validity: until next update or archiving
Version: 2

Provide recommendations, when appropriate, to the STC for considering possible items as topics toaddress generically

4. Outputs of the HPR1000 WG during 2020 - 2022
•Develop the following Common Positions (CP)
1. HPR1000 CP on Fukushima Lessons Learnt; an updated version to reflect ONR’s final
conclusions after completing the GDA for the HPR1000 (2022)
2. HPR1000 CP on Post-loss of coolant accident (LOCA) Strainer Performance and Debris
in-Vessel Downstream Effects (2020-2021)
3. HPR1000 CP on the Vienna Declaration (2020-2022)
4. HPR1000 CP on In-Vessel Retention (2020-2022)•Develop the following technical reports (TR)
1. HPR1000 TR on Hydrogen Management (2020) - COMPLETED
2. SA TESG TR on Regulatory Requirements and Practices for Severe Accidents COMPLETED
3. Hazards TESG TR on Internal and External Hazards•••••

Complete table on similarities and differences among HPR1000 designs, as appropriate (2020) COMPLETED
Contribute to the MDEP Annual Report
Contribute to the programme for the 5th MDEP conference in 2021
Share lessons learnt from design reviews and design issues faced during HPR1000 construction andcommissioning
Recommendations and inputs to other MDEP working groups regarding potential generic issues andharmonisation opportunities (coordination with CNRA WGDIC and WGCS, VICWG, or the EPRWG,
AP1000WG, APR1400WG, and VVERWG, as appropriate)

5. Key Stakeholders with whom the HPR1000 WG members will interact• Hualong Pressurized Water Reactor Technology Co. LTD• Bradwell B Generation Company (BRB GenCo), General Nuclear System (GNS)• Nucleo Electrica Argentina S.A. (NA-SA)• Other MDEP regulators as needed (care shall be taken NOT to share proprietary or sensitive infoinappropriately)• Non-MDEP regulators, as appropriate• CNRA/WGRNR/WGDIC• HPR1000 Utilities/Licensees/Operators• Other Groups, as appropriate, to further MDEP goals (IAEA, TSO, etc)4