Prices on shares in selected power companies and in companies with largetrading activity in electricity:March 1STOCKHOLM (SEK)Arise Windpower 44,00 2,09 5 896Eolus Vind 52,75 0,00 16 387Holmen 232,00 0,43 468Stora Enso 74,00 0,20 3 212COPENHAGEN (DKK)Vestas Wind Systems 182,60 -1,88 1 331 701HELSINKI (EUR)Fortum 22,26 -0,85 1 565 146Stora Enso 8,48 0,24 1 008OSLO (NOK)Arendals Fossekompani 1700,00 0,00 2Hafslund 69,00...