Prices on shares in selected power companies and in companies with largetrading activity in electricity:February 25STOCKHOLM (SEK)Arise Windpower 43,80 5,29 10 041Eolus Vind 52,00 1,46 22 779Holmen 228,00 0,00 644Stora Enso 76,10 2,35 5 823COPENHAGEN (DKK)Vestas Wind Systems 179,60 2,40 904 933HELSINKI (EUR)Fortum 22,26 0,68 1 892 349Stora Enso 8,63 1,35 3 838OSLO (NOK)Arendals Fossekompani 1700,00 0,00 0Hafslund 70,00 1,82...