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Gli impianti idroelettrici attivi in Svizzera con potenza superiore ai 300 chilowatt erano 658 a fine 2018, otto in più facendo il raffronto con 12 mesi prima. La produzione energetica complessiva è così passata a 36'449 gigawatt orari all'anno, 122 in più.
La legge che regola la materia impone, secondo la recente revisione, che entro il 2035 si passi a un valore indicativo di 37'400 gigawatt, un obbiettivo che potrà essere raggiunto se gli incrementi saranno quelli appena constatati, indica martedì un comunicato dell'Ufficio federale dell'energia.
La quota ricavata dall'acqua -precisa la nota- s'è nel frattempo attestata al 57% di tutta l'elettricità generata.
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Il maggior produttore è il Vallese
L'energia elettrica svizzera proviene per circa il 57% dallo sfruttamento della forza idrica. Le maggiori produzioni si registrano nei cantoni alpini:
Vallese (9'746 gigawattora annui)
Grigioni (7'938)
Ticino (3'561)
Berna (3'336)
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