Prices on shares in selected power companies and in companies with largetrading activity in electricity:September 13Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 44,90 4,66 9 445Eolus Vind 39,50 1,28 14 260Holmen 217,00 1,40 18Stora Enso 65,00 1,88 30 278COPENHAGEN (DKK)Vestas Wind Systems 217,80 4,96 2 045 898HELSINKI (EUR)Fortum 19,26 -0,26 1 357 853Stora Enso 7,08 2,17 11 012OSLO...