PRICEWATERHOUSE TO CHECK RUSSIAN POWER GRID? MOSCOW, MARCH 7, RIA NOVOSTI - Today's session of the Unified Energy Systems, UES, board of directors determined to address to an annual holders' meeting to approve PriceWaterhouse Coopers Audit Co. as company auditor on Russian- and international-standard accounting for this year. The company is holding the meeting, April 28, says company PR. The PriceWaterhouse Coopers Audit and the Unified Energy Systems are partners since 1997. The PriceWaterhouse won a contest for auditing UES last year.