Prices on shares in selected power companies and in companies with largetrading activity in electricity:December 10COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 44,20 2,79 12 371Eolus Vind 42,00 -0,71 2 499Holmen 209,00 -0,62 318Stora Enso 66,55 -0,97 4 601COPENHAGEN (DKK)Vestas Wind Systems 171,00 7,01 2 181 054HELSINKI (EUR)Fortum 21,50 0,37 1 248 827Stora Enso 7,29 -1,29 4 019OSLO (NOK)Arendals...