Norway, Nov. 14 -- Hydro has made the final investment decision for its largest hydropower development in over 20 years. Construction of the Illvatn pumped storage power plant in the Luster Municipality will begin this November, with operations expected to start in 2030.The new pumped storage plant in the Luster Municipality in Norway will provide 107 GWh of new annual renewable power production, dedicated to Hydro's aluminium production.The gross investment amounts to NOK 2.5 billion. Through Norway's cash flow tax scheme for hydropower investments, Hydro's net investment after tax is estimated at NOK 1.2 billion.Contributing to more power and balance in the power systemThe planned pumped storage plant will pump water from the reservoir at...