Prices on shares in selected power companies and in companies with largetrading activity in electricity:July 23Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 42,90 -1,38 17 197Eolus Vind 41,70 -0,24 3 014Holmen 193,40 1,79 320Stora Enso 61,50 4,59 11 992COPENHAGEN (DKK)Vestas Wind Systems 289,00 -0,52 1 051 844HELSINKI (EUR)Fortum 18,02 -0,22 1 577 902Stora Enso 6,60 4,93 10 701OSLO...