Prices on shares in selected power companies and in companies with largetrading activity in electricity:September 9Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 43,50 -1,14 5 053Eolus Vind 39,00 -1,52 4 515Holmen 214,10 -1,79 102Stora Enso 63,85 1,75 5 701COPENHAGEN (DKK)Vestas Wind Systems 209,40 -3,95 6 494 350HELSINKI (EUR)Fortum 19,05 2,36 2 453 906Stora Enso 6,88 1,18 7 986OSLO...