Prices on shares in selected power companies and in companies with largetrading activity in electricity:December 8COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 41,40 -0,24 18 638Eolus Vind 43,00 1,90 54 746Holmen 210,30 -0,80 139Stora Enso 67,50 -1,46 8 090COPENHAGEN (DKK)Vestas Wind Systems 159,80 -2,14 1 292 544HELSINKI (EUR)Fortum 21,40 2,00 3 168 892Stora Enso 7,40 -1,07 3 110OSLO (NOK)Arendals...