Prices on shares in selected power companies and in companies with largetrading activity in electricity:January 27COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 45,00 1,35 6 374Eolus Vind 48,80 7,73 438 120Holmen 250,00 1,67 680Stora Enso 82,75 -0,90 28 076COPENHAGEN (DKK)Vestas Wind Systems 188,30 0,53 793 809HELSINKI (EUR)Fortum 22,45 0,99 2 029 684Stora Enso 9,35 -0,95 18 703OSLO (NOK)Arendals Fossekompani...