Prices on shares in selected power companies and in companies with largetrading activity in electricity:December 7COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 41,50 0,73 17 366Eolus Vind 42,20 -1,63 15 497Holmen 212,00 0,00 1 237Stora Enso 68,50 0,74 13 706COPENHAGEN (DKK)Vestas Wind Systems 163,30 1,43 981 615HELSINKI (EUR)Fortum 20,98 0,43 2 448 380Stora Enso 7,48 0,67 8 164OSLO (NOK)Arendals...