Prices on shares in selected power companies and in companies with largetrading activity in electricity:August 30Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 46,00 2,22 5 303Eolus Vind 39,00 0,00 7 908Holmen 204,50 3,02 565Stora Enso 60,95 -0,57 3 440COPENHAGEN (DKK)Vestas Wind Systems 224,70 -2,30 1 470 561HELSINKI (EUR)Fortum 18,27 0,61 1 440 856Stora Enso 6,68 4,05 5 130OSLO...