Prices on shares in selected power companies and in companies with largetrading activity in electricity:September 15Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 43,70 -0,68 1 835Eolus Vind 39,80 2,05 96 431Holmen 209,50 -0,24 585Stora Enso 64,90 0,62 15 096COPENHAGEN (DKK)Vestas Wind Systems 220,50 -2,13 1 823 135HELSINKI (EUR)Fortum 19,20 -0,16 1 422 584Stora Enso 7,14 -0,49 546OSLO (NOK)Arendals...