Prices on shares in selected power companies and in companies with largetrading activity in electricity:August 24Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 42,50 -3,19 8 344Eolus Vind 40,40 -1,94 110 242Holmen 198,00 0,46 46Stora Enso 61,85 1,06 8 531COPENHAGEN (DKK)Vestas Wind Systems 237,80 -1,98 1 492 990HELSINKI (EUR)Fortum 18,03 -0,93 1 549 132Stora Enso 6,54 0,62 6 025OSLO...