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  Inviato da: Roberto Deboni DMIsr  Mostra tutti i messaggi di Roberto Deboni DMIsr
Titolo: Che diamine succede alle aziende nucleari occidentali
Newsgroup: it.discussioni.energia
Data: 12/12/2017
Ora: 08:19:24
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  Prima la francese Areva con il suo pasticcio ad Olkiluoto,<br /> ma c'era da aspettarselo visto che l'amministratore<br /> delegato responsabile dei pasticci, Anne Lauvergeon, era<br /> stata scelto dai Verdi.<br /> <br /> Ed ora salta fuori che anche Westinghouse non e' poi andata<br /> &quot;pulita&quot;:<br /> <br /> &lt;http://chronicle.augusta.com/news/2017-12-11/decision-nuclear-reactors-plant-vogtle-moved-next-week><br /> <br /> &quot;Other staff testified that the problems stemmed from the very beginning <br /> in that contractor Westinghouse, which is manufacturing the new AP1000 <br /> reactors being installed at Vogtle and was also the general contractor <br /> for the projects until it declared bankruptcy in March, didn&rsquo;t have the <br /> design far enough along when the projects began in 2009. In fact China, <br /> which was about two years ahead of the Vogtle project in creating new <br /> reactors with the AP1000, has yet to get one online although one is just <br /> awaiting regulatory approval to load fuel, Jacobs said. Construction on <br /> two of those reactors in South Carolina was halted this summer after the <br /> utilities determined the projects would be too expensive to continue. <br /> Finishing the design and handling the construction of the new reactors <br /> &ldquo;was a much bigger job than even Westinghouse realized,&rdquo; Jacobs said. <br /> Manufacturers also complained about all of the design changes that were <br /> being passed down, he said. The company was &ldquo;constantly adding things, <br /> taking things off,&rdquo; said Steven Roetger, an analyst for the commission. <br /> &ldquo;I can only imagine the frustration.&rdquo;<br /> <br /> &quot;For instance, staff from the Nuclear Regulatory Commission didn&rsquo;t like <br /> the way Westinghouse had arranged rebar for reinforcing concrete on part <br /> of the project. Westinghouse insisted it had made it the design better, <br /> leading to a long discussion and a 10-month delay, Jacobs said. But also <br /> in question was how much oversight Georgia Power, which owns a 45.7 <br /> percent stake in the project, should have been overseeing Westinghouse <br /> and spurring them on to do better. Westinghouse had given Georgia Power <br /> and its partners a fixed price contract to do the whole project and they <br /> were limited to some extent by how much they could micromanage the <br /> project. But Roetger argued that there should have been signs earlier <br /> that the projects were not going to meet budget or schedule, calling one <br /> subcontractor &ldquo;a complete mess&rdquo; that should have raised more red flags.&quot;<br /> <br /> &ldquo;A lot of time was wasted getting little work done,&rdquo; he said. &ldquo;We&rsquo;ve <br /> been at this for many years and we still have a long way to go.&rdquo;<br /> <br /> Greene, on behalf of Georgia Power, pointed out monthly reports from <br /> Jacobs showing the company was actively and &rdquo;aggressively&rdquo; trying to get <br /> the project contractors to do better.<br /> <br /> &ldquo;Y0u get an A for effort,&rdquo; Jacobs said. &ldquo;But you did not get results.&rdquo;<br /> <br /> Progetto incompleto, fabbricanti che protestano perche' il progetto<br /> continua a subire cambiamenti e modifiche. La Westinghouse continuava<br /> ad aggiungere oggetti e togliere oggetti, si puo' immaginare con<br /> quale frustrazione delle aziende esecutrici.<br /> <br /> Per esempio, in parte del progetto, alla NRC non piaceva come<br /> Westinghouse aveva previsto la posa delle armature per le<br /> strutture in calcestruzzo armato, con Westinghouse che<br /> insisteva di avere migliorato il progetto: una questione che<br /> ha avviato una discussione durata dieci mesi di ritardi.<br /> <br /> Ed ancora una volta, vediamo un contratto a prezzo fisso.<br /> Sembra che la logica del prezzo fisso porti alla proprieta' a<br /> non controllare la costruzione, della serie: intanto se ci sono<br /> problemi, il costruttore dovra' rimediarli.<br /> <br /> Mah!<br /> <br /> Tra i problemi che remano contro la costruzione e' che Trump ha<br /> allentato il &quot;rigore&quot; delle riduzioni delle emissioni di CO2 e<br /> quindi alle aziende elettriche non serve piu' cosi' tanto<br /> nucleare.<br /> <br /> E poi c'e' la questione di chi paga i sovraccosti, con la<br /> Westinghouse che e' fallita e' quindi il prezzo &quot;chiavi in mano&quot;<br /> fino nel limbo.<br /> <br /> Sara' interessante vedere se gli Stati Uniti rinunciano ad essere<br /> una presenza nel mercato internazionale dei reattori, lasciano<br /> cosi' campo libero alla Rosatom russa (che tra poco comincera'<br /> a costruire altri 4 reattori, questa volta in Egitto).  

Il thread:
da leggere Roberto Deboni DMIsr 12/12 08:19
Che diamine succede alle aziende nucleari occidentali
   da leggere Roberto Deboni DMIsr 12/12 08:50
Re: Che diamine succede alle aziende nucleari occidentali
 

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