Prices on shares in selected power companies and in companies with largetrading activity in electricity:January 19COMPANY Latest close Change % VolumeSTOCKHOLM (SEK)Arise Windpower 44,70 -0,22 4 762Eolus Vind 44,00 3,53 63 318Holmen 235,00 -3,93 2 099Stora Enso 79,50 1,92 45 424COPENHAGEN (DKK)Vestas Wind Systems 187,80 -1,68 939 573HELSINKI (EUR)Fortum 22,51 -0,35 1 978 014Stora Enso 8,93 0,00 36 697OSLO (NOK)Arendals...