Prices on shares in selected power companies and in companies with largetrading activity in electricity:September 7Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 43,60 -1,58 4 842Eolus Vind 39,30 -1,50 2 346Holmen 213,80 -0,09 553Stora Enso 62,25 -1,97 3 615COPENHAGEN (DKK)Vestas Wind Systems 219,00 -1,26 1 563 634HELSINKI (EUR)Fortum 18,37 -1,24 1 427 474Stora Enso 6,70 -1,18 2 137OSLO...