Prices on shares in selected power companies and in companies with largetrading activity in electricity:September 30COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 41,70 0,73 4 162Eolus Vind 41,00 1,24 5 168Holmen 209,20 -1,78 885Stora Enso 67,50 1,96 8 729COPENHAGEN (DKK)Vestas Wind Systems 206,00 2,34 1 510 971HELSINKI (EUR)Fortum 19,19 -0,05 1 628 138Stora Enso 7,33 0,34 6 021OSLO (NOK)Arendals...