Prices on shares in selected power companies and in companies with largetrading activity in electricity:December 28COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 43,50 0,00 12 784Eolus Vind 43,00 0,23 26 409Holmen 220,60 -0,18 353Stora Enso 70,40 0,72 11 343COPENHAGEN (DKK)Vestas Wind Systems 176,50 -0,51 516 459HELSINKI (EUR)Fortum 22,40 0,31 370 364Stora Enso 7,76 -0,26 3 708OSLO (NOK)Arendals Fossekompani 1685,00...