Prices on shares in selected power companies and in companies with largetrading activity in electricity:July 22Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 43,50 -0,69 5 162Eolus Vind 41,80 0,00 3 095Holmen 190,00 -1,04 6Stora Enso 58,80 -0,84 11 547COPENHAGEN (DKK)Vestas Wind Systems 290,50 3,82 2 546 146HELSINKI (EUR)Fortum 18,06 -0,06 2 044 789Stora Enso 6,29 0,64 16 021OSLO...