Prices on shares in selected power companies and in companies with largetrading activity in electricity:February 15STOCKHOLM (SEK)Arise Windpower 43,30 -4,42 8 601Eolus Vind 52,50 -2,33 27 597Holmen 228,50 -1,08 778Stora Enso 80,65 -2,01 4 879COPENHAGEN (DKK)Vestas Wind Systems 174,00 -0,06 518 377HELSINKI (EUR)Fortum 22,10 -1,03 1 022 439Stora Enso 9,23 -1,55 4 108OSLO (NOK)Arendals Fossekompani 1680,00 1,21 70Hafslund 70,50 0,36...