Russian hydroelectric power company Rushydro says:Net Profit In The First Quarter Stood At 18.9 Billion Roubles ($239.85 Million);.Revenue For The Same Period Amounted To 177.3 Billion Roubles..Further Company Coverage: Hydr.Mm.($1 = 78.8000 Roubles). (Reporting By Reuters; Writing By Maxim Rodionov; Editing By Alexander Marrow). ((Maxim.Rodionov@Thomsonreuters.Com;)).