Flamanville 3 experience feedback

Transcription

1 Flamanville 3 experience feedback Summary Flamanville 3 project organization Site work progress First experience feedback The EDF EPR Family concept Conclusion Robert PAYS EDF Nuclear Engineering Division 1 - CNRA/WGRNR Workshop Prague 16/17 September

2 Flamanville 3 : The present reference of generation 3 reactor A first reactor preparing the future The construction and operation of 58 reactors gives to EDF a unique experience. Commercial production in 2014 and construction budget equal to around 5MM The planning of construction of severai EPR reactors by EDF will be based on experience feedback from Flamanville CNRA/WGRNR Workshop Prague 16/17 September

3 Flamanville 3 project architecture on 3 levels Architect Engineer Level 1 EDF Detailed studies Level 2 NSSS* +I&C BNI* Site auxiliary buildings AREVA SOFINEL EDF ALSTOM 55% EDF 45% AREVA Engineering contracts Turbine and Generator Building Suppliers Level Supply and construction contracts: * : NSSS : Nuclear Steam Supply System BNI : Balance of Nuclear Island 3 - CNRA/WGRNR Workshop Prague 16/17 September

4 Site progress (1/7) Nuclear island civil work 4 - CNRA/WGRNR Workshop Prague 16/17 September

5 Site progress (2/7) Nuclear island HVAC and piping erection 5 - CNRA/WGRNR Workshop Prague 16/17 September

6 Site progress (3/7) Conventional island piping erection 6 - CNRA/WGRNR Workshop Prague 16/17 September

7 Site progress (4/7) Conventional island condenser erection 7 - CNRA/WGRNR Workshop Prague 16/17 September

8 Site progress (6/7) BOP switchboard commissioning 8 - CNRA/WGRNR Workshop Prague 16/17 September

9 Site progress (7/7) Operation staff building 9 - CNRA/WGRNR Workshop Prague 16/17 September

10 Contract Allotment EDF acts as architect engineer. From our experience for the construction of the French fleet, we will maintain the same industrial organisation for new built Reduction of number of main contracts from previous projects (150 instead of more than 700 on the previous series) Improvement and clarification of interface management by EDF project Duplication of this allotment for Penly 3 with some limited adaptations to take into account the industrial landscape 10 - CNRA/WGRNR Workshop Prague 16/17 September

11 Design Detailed design and procurement activities have to be anticipated as much as possible, A key point is related to the availability of interface data coming from the suppliers to issue the execution drawings on site The process validation and operator training was early done by a simulator developed for FA3. This was a true success 11 - CNRA/WGRNR Workshop Prague 16/17 September

12 Manufacturing First time to have most of primary components forged (for NSSS around 50 pieces) Olkiluoto 3 was the first of a kind and Flamanville benefited from the feedback experience. Up to now, no main quality problem but many minor non conformance due to the lack of experience of the suppliers Difficulties encountered with the new French regulation for pressurized equipment (ESPN) which was not stabilized CNRA/WGRNR Workshop Prague 16/17 September

13 Site activities Difficulties met for welding of the base mat liner are now solved and quality is satisfactory Prefabrication of steelwork structures, pool formworks, reactor dome, is an approach to be reinforced Qualification of workers is a key issue to meet the quality requirements Anticipation of electromechanical erection in the lowest rooms of nuclear buildings has to be done to secure the schedule Cleanness, organisation of the tasks and managerial staff are the conditions to guarantee good results for industrial safety 13 - CNRA/WGRNR Workshop Prague 16/17 September

14 Competences and Skills No new nuclear construction in France for the last 15 years Quality levels requested by the Safety Authority higher than for the construction of previous series Difficulties encountered by suppliers at shops and on site to meet these requirements taking into account a strong renewal of staff Needs to reinforce controls over the chain of contractors and subcontractors 14 - CNRA/WGRNR Workshop Prague 16/17 September

15 The EDF Group EPR Family Concept EDF Group is involved, alone or with partners, in 9 EPR projects as a future licensee and as an architect engineer : France: Flamanville 3 (100%) + Penly 3 (50%) China: Taishan 1&2 (30%) UK: Hinkley Point C 1&2, Sizewell B 1&2 (80%) US: Calvert Cliff 3 (50%) and more to come (Italy, ) EDF has decided to create the EPR family in order to facilitate the exchanges between the projects and set up an organisation enabling each one to benefit from the feedback experience of the other projects CNRA/WGRNR Workshop Prague 16/17 September

16 EPR Family Areas of cooperation Safety and licensing issues Construction feedback Preparation of operation and maintenance Procurement IT 16 - CNRA/WGRNR Workshop Prague 16/17 September

17 EDF Group EPR Family Organization Several EDF Engineers dispatched in each EPR project abroad A back office in EDF Engineering Division in France serving all the projects Regular contacts and meetings between projects to share information on technical issues Feedback experience sheets issued by the projects under construction to all the EDF EPR family members 17 - CNRA/WGRNR Workshop Prague 16/17 September

18 EDF Group EPR Family Experience feedback: 1st examples Solutions to solve construction difficulties at Flamanville 3 have already been implemented at Taishan with significant benefits on scheduling : - Pouring of nuclear island slab in one shot - Reactor liner anchors and weldings - Operation documentation prepared for Flamanville 3 will be used for the future EPR plants Licensing documentation and justifications used for several EPR projects (I&C, civil calculations, mechanical sizing, ) 18 - CNRA/WGRNR Workshop Prague 16/17 September

19 Conclusion Flamanville 3: An EPR first of a kind for EDF after 15 years without nuclear construction Safety and construction quality stay the priorities of Flamanville 3 project An efficient organisation set up to transfer experience among several EDF EPR projects worldwide from Flamanville 3 Good experience feedback on several construction practices already transfered to Taishan EPRs and the following ones that will allow to reduce the risks 19 - CNRA/WGRNR Workshop Prague 16/17 September

20 Thank you for your attention 20 - CNRA/WGRNR Workshop Prague 16/17 September