Prices on shares in selected power companies and in companies with largetrading activity in electricity:September 29COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 41,40 -0,96 17 157Eolus Vind 40,50 0,00 10 996Holmen 213,00 0,00 2 272Stora Enso 66,20 1,30 15 220COPENHAGEN (DKK)Vestas Wind Systems 201,30 -2,14 1 520 345HELSINKI (EUR)Fortum 19,20 -0,62 1 874 683Stora Enso 7,30 2,75 5 087OSLO...