Prices on shares in selected power companies and in companies with largetrading activity in electricity:January 7COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 43,60 -1,13 708Eolus Vind 42,70 -0,70 7 875Holmen 233,00 -3,72 7 882Stora Enso 72,60 2,11 30 017COPENHAGEN (DKK)Vestas Wind Systems 176,70 -1,62 863 261HELSINKI (EUR)Fortum 22,85 2,42 2 068 241Stora Enso 8,30 4,40 13 146OSLO (NOK)Arendals Fossekompani...