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VENETO: NUCLEARE SI NUCLEARE NO

Nella precedente puntata ho analizzato il potenziale di produzione elettrico installato nella regione del Veneto e la produzione effettiva.

Come candidato del PNV alla presidenza del Veneto passo ora a descrivere il mio pensiero sulla energia nucleare.
Se dobbiamo avere delle idee che ci guidano nella vita io voglio rifiutare la fredda prevalenza del calcolo elettorale. il “benaltrismo” fine a se stesso, l’incertezza dettata da logiche di alleanza, il gioco del dico non dico.
In questo campo a mio avviso deve assolutamente prevalere la chiarezza sia verso le persone da rappresentare che la sicurezza della collettività nel suo complesso ; tutto ciò deve prevalere sopra ogni e qualsiasi interesse.

Ecco quindi perché dico di NO.

In quanto tecnico ed imprenditore industriale sono fortemente affascinato da questo tipo di tecnologia che trovo stupefacente.
Sarà certamente la forma di produzione del nostro futuro tra 100 o 200 anni.
Ma allo stato attuale delle nostre conoscenze tecniche sono contrario ad un suo utilizzo sulla nostra terra. Per ora.
Sappiamo bene che le centrali moderne a confinamento del nocciolo nulla hanno a che fare con Chernobyl. ma anche se attualmente il rischio di incidenti è molto basso. dobbiamo moltiplicare questo numero seppur piccolissimo per un coefficiente di “conseguenza” che possa misurare gli effetti sulla nostra civiltà, che certamente ne risulterebbe cancellata.

Come ingegnere so bene che la progettazione di una costruzione antisismica fornisce solo risultati in termini di probabilità. E’ molto probabile che la tua costruzione resisterà ad un forte terremoto se ben progettata e realizzata. Ma non se ne può avere la certezza assoluta.

Ed infatti negli ultimi 50 anni al mondo contiamo almeno una decina di incidenti di cui un paio almeno gravi ed uno decisamente molto grave.

Se avessimo una centrale a Fusina, in caso di esplosione non controllata, dovremmo fare sulla mappa un cerchio di raggio 200 km ed evacuare tutti gli abitanti di quest’area per decine e decine di anni.
Una situazione assolutamente intollerabile.

Se la tecnica fornisce degli strumenti la politica deve avere il coraggio di valutarne l’applicabilità.

Ne consegue che aprioristicamente si devono ricercare delle alternative. costi quel che costi, perché io e penso anche voi, insomma nessuno di noi è disposto ad accettare una eventualità di questo tipo.

E si dovrebbe anche istituire una authority europea ed internazionale di controllo, essendo altrettanto non ammissibile la presenze di centrali all’estero ma con potenziali conseguenze gravi anche sul nostro territorio.

E questo senza nemmeno scendere in altre disquisizioni. Peraltro negative e che scoraggiano ulteriormente l’applicazione attuale del nucleare.
Il problema delle scorie non è stato definitivamente e certamente risolto, se non dal punto di vista tecnico dal punto di vista economico.
Nessuno è in grado di affermare con certezza quanto ci costerà trattare smaltire e gestire per centinaia di anni le scorie di questo fastidiosissimo isotopo dell’Uranio che è il 235 ed io un contratto con i costi in bianco non lo firmo, io firmo solo certezze o per lo meno costi ragionevolmente prefissati entro un range abbastanza affidabile.

I costi di costruzione di una centrale nucleare sono molto elevati e si possono benissimo utilizzare le risorse per ammodernare le centrali esistenti, rendendole molto più efficienti e meno inquinanti, fino al 75% in meno e da subito. Entro pochi anni.

Nessuno è in grado di dire quanto tempo serve a smantellare una centrale nucleare a fine ciclo, ed i relativi costi, ci sono studi francesi che stimano servano 100 anni.

Non è vero che il nucleare non emette CO2, si devono considerare le emissioni per l’estrazione e l’arricchimento dell’Uranio e lo smantellamento delle centrali.
Uno studio inglese stima che una volta fatte tutte le somme, le emissioni globali calcolate siano non trascurabili.

A questo punto è chiaro che il rischio non vale la pena di essere corso.

Si devono fare le cose semplici e non complicate. Le cose semplici funzionano sempre, non si guastano e non creano grandi problemi di gestione. La tecnologia è in divenire, tra 10 o 20 anni avremo a disposizione altre evoluzioni nella produzione, quale per esempio il sequestro di CO2.

Dobbiamo stare “leggeri” investire nella innovazione degli impianti attuali e non farci prendere la mano da logiche affariste che vedono nel nucleare l’opportunità di un nuovo “New deal” e di lavori
pubblici che possono benissimo essere indirizzati altrove, su altre preziose infrastrutture o sulle stesse centrali esistenti con analogo se non superiore beneficio per la collettività.

Le alternative ci sono eccome, convincenti e nella nostra immediata disponibilità.
Alla prossima puntata spiegherò quali, numeri compresi.

Gianluca Panto (PNV)
candidato presidente del Veneto

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