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Dopo quello sulla diga dell'Albigna, realizzato nel 2020 in Bregaglia, le aziende elettriche di Zurigo (EWZ) stanno costruendo un secondo impianto a pannelli solari su un lago artificiale grigionese, il Lago di Lei. Il bacino è quasi interamente in territorio italiano, ma il muro su cui si sta lavorando è in quello elvetico, in cima alla valle di Avers.
Un nuovo impianto solare in Val Bregaglia: installato su una diga
RSI 10.08.2020, 19:01
A 1'930 metri di quota è in corso la posa di un migliaio di moduli rivolti a sud in grado di catturare i raggi del Sole e produrre elettricità sufficiente per 160 economie domestiche.
Sulle Alpi tra idroelettrico e fotovoltaico
RSI/pon 20.08.2021, 14:19
La struttura dal costo di 800'000 franchi dovrebbe essere pronta già in settembre. L'esperienza dell'Albigna, secondo l'EWZ, ha dimostrato l'efficienza di questi impianti di alta montagna, di un quarto superiore a quella raggiunta sull'Altopiano.
Anche il colosso Axpo, con la IWB, si è lanciato in questo settore e al Muttsee nel canton Glarona ha costruito un impianto da 2,2 megawatt, oggi il più grande della Svizzera.
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