Prices on shares in selected power companies and in companies with largetrading activity in electricity:July 6Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 44,00 -1,57 21 694Eolus Vind 41,50 0,24 21 279Holmen 189,50 2,16 34Stora Enso 60,40 1,51 11 731COPENHAGEN (DKK)Vestas Wind Systems 263,10 2,61 1 141 277HELSINKI (EUR)Fortum 18,47 2,21 2 201 886Stora Enso 6,30 3,79 1 850OSLO...