Prices on shares in selected power companies and in companies with largetrading activity in electricity:December 6COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 41,20 -0,72 14 030Eolus Vind 42,90 0,94 23 923Holmen 212,00 -2,26 514Stora Enso 68,00 0,37 4 000COPENHAGEN (DKK)Vestas Wind Systems 161,00 -0,49 665 865HELSINKI (EUR)Fortum 20,89 0,10 2 119 906Stora Enso 7,43 0,41 3 856OSLO (NOK)Arendals Fossekompani...