Executive summary
Date(s) of inspection: May 2024
Aim of inspection
The aim of this inspection is to seek assurance that NRS Wylfa's arrangements for compliance with LC35 (Decommissioning) are adequate, and have been adequately implemented.
Subject(s) of inspection
- LC35 - Decommissioning - Rating: Green
Key findings, inspector's opinions and reasons for judgement made
I carried out a LC35 compliance inspection at the NRS Ltd Wylfa site. LC 35 requires the licensee to make and implement adequate arrangements for the decommissioning of any plant or process which may affect safety, and for the production and implementation of decommissioning programmes for each plant. I utilised ONR guidance NS-INSP-GD-035 Revision 7 during the inspection.
I reviewed the arrangements for this LC and their implementation, and found the decommissioning strategy and priorities leading up to the period of entry into care and maintenance to be adequate. However, I was unable to find an outline strategy for final decommissioning following care and maintenance, and have therefore raised a L4 issue.
I sampled the decommissioning of the turbine hall and found the strategies and plans for this to be adequate.
Conclusion
I considered applicable legislation and relevant good practices including, but not limited to,
- Licence Condition 35(1) and (2)
- NS-INSP-GD-035 Issue 7 Licence Condition 35 Decommissioning
Based on the evidence sampled during this inspection, I judged there were no significant compliance shortfalls in NRS's arrangements, and therefore I assigned a green inspection rating.
I also raised a L4 Issue on Final End State and Knowledge Management Requirements (RI-12099).
via routine regulatory engagement. I have assigned an inspection rating of Green (no formal action) for compliance against LC7.
Crynodeb gweithredol
Pwrpas yr Arolygiad
Nod yr arolygiad hwn yw ceisio sicrwydd bod trefniadau NRS Wylfa ar gyfer cydymffurfio ag LC35 (Datgomisiynu) yn ddigonol, ac wedi'u gweithredu'n ddigonol.
Pwnc(pynciau) yr Arolygiad
Roedd y gweithgareddau canlynol yn destun yr arolygiad hwn
- LC 35 - Datgomisiynu - Gwyrdd
Canfyddiadau Allweddol
Cynhaliais arolygiad cydymffurfio LC35 yn safle NRS Cyf Wylfa. Mae LC 35 yn ei gwneud yn ofynnol i’r trwyddedai wneud a gweithredu trefniadau digonol ar gyfer datgomisiynu unrhyw waith neu broses a allai effeithio ar ddiogelwch, ac ar gyfer cynhyrchu a gweithredu rhaglenni datgomisiynu ar gyfer pob rhan o’r gwaith. Defnyddiais arweiniad yr ONR NS-INSP-GD-035 Diwygiad 7 yn ystod yr arolygiad. Adolygais y trefniadau ar gyfer yr LC hwn a'u gweithrediad, a gwelais fod y strategaeth a'r blaenoriaethau datgomisiynu yn arwain at y cyfnod mynediad i ofal a chynnal a chadw yn ddigonol. Fodd bynnag, ni lwyddais i ddod o hyd i strategaeth amlinellol ar gyfer datgomisiynu terfynol yn dilyn gofal a chynnal a chadw, ac felly rwyf wedi codi mater L4.
Fe wnes i samplu datgomisiynu'r neuadd dyrbinau a chanfod bod y strategaethau a'r cynlluniau ar gyfer hyn yn ddigonol.
Barnau a Wnaed
Ystyriais ddeddfwriaeth berthnasol ac arferion da perthnasol gan gynnwys, ond heb fod yn gyfyngedig i,
Amod Trwydded 35(1) a (2)
NS-INSP-GD-035 Mater 7 Amod Trwydded 35 Datgomisiynu
Yn seiliedig ar y dystiolaeth a samplwyd yn ystod yr arolygiad hwn, barnais nad oedd unrhyw ddiffygion cydymffurfio sylweddol yn nhrefniadau'r NRS, ac felly neilltuais sgôr arolygu GWYRDD.
Codais hefyd Fater L4 ar Ofynion Cyflwr Terfynol a Rheoli Gwybodaeth (RI-12099).