Prices on shares in selected power companies and in companies with largetrading activity in electricity:January 25COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 44,30 0,23 26 095Eolus Vind 45,20 1,57 31 160Holmen 246,00 3,36 1 999Stora Enso 84,00 1,08 32 279COPENHAGEN (DKK)Vestas Wind Systems 190,00 -4,09 1 605 063HELSINKI (EUR)Fortum 22,64 0,31 2 161 799Stora Enso 9,40 1,84 16 375OSLO...