Prices on shares in selected power companies and in companies with largetrading activity in electricity:December 2COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 41,50 0,00 11 870Eolus Vind 41,10 -2,14 7 326Holmen 211,90 1,29 1 950Stora Enso 67,45 0,30 10 372COPENHAGEN (DKK)Vestas Wind Systems 165,40 3,50 1 437 151HELSINKI (EUR)Fortum 20,87 1,81 1 719 846Stora Enso 7,40 0,68 4 406OSLO...