Prices on shares in selected power companies and in companies with largetrading activity in electricity:September 10Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 42,90 -1,38 4 326Eolus Vind 39,00 0,00 4 940Holmen 214,00 -0,05 153Stora Enso 63,80 -0,08 1 789COPENHAGEN (DKK)Vestas Wind Systems 207,50 -0,91 1 843 164HELSINKI (EUR)Fortum 19,31 1,37 2 579 544Stora Enso 6,93 0,73 17 846OSLO...