RusHydro Received 24.7% of Yakutskenergo

September 28th, 2011

RusHydro Received 24.7% of Yakutskenergo as a result of Pre-emptive Right

JSC RusHydro (ticker symbol: RTS, MICEX, LSE: HYDR; OTCQX: RSHYY) announces that as a result of execution of pre-emptive right by its shareholders during the ongoing share issue, the Company received 1,967,689,387 of ordinary shares of JSC Yakutskenergo, or 24.7086% of its share capital, as payment for its own shares.

The price of one share of Yakutskenergo was approved by the Board of Directors at RUR 0.6032273765104 on August 26, 2011.

The valuation of shares was done by an independent appraiser - LLC Institute for Enterprise Issues (St. Petersburg). JPMorgan and Morgan Stanley provided their opinions to the Board of Directors of RusHydro regarding the valuations of the asset.

The Annual General Meeting of shareholders of RusHydro approved an increase of the Company's authorized share capital by issuing 89,000,000,000 additional ordinary shares with a par value of RUR 1 per share on June 30th, 2011. The Board of Directors approved a decision on additional share issue and Prospectus of the issue on July 29, 2011.

For more information:

JSC RusHydro, Investor Relations Department

Tel. +7 (495) 225-3232 ext. 1319, 1394, 1607

[email protected]

DISCLAIMER

The information in this press release may contain projections or other forward-looking statements regarding future events or the future financial performance of RusHydro. One can identify forward-looking statements by terms such as "expect," "believe," "anticipate," "estimate," "intend," "will," "could," "may" or "might," the negative of such terms or other similar expressions. We wish to caution you that these statements are only predictions and that actual events or results may differ materially from these statements.

We do not intend to update these statements to reflect events and circumstances occurring after the date hereof or to reflect the occurrence of unanticipated events. Many factors could cause the actual results to differ materially from those contained in our projections or forward-looking statements, including, among others, general economic conditions, our competitive environment, risks associated with operating in Russia and rapid technological and market changes in our industries, as well as many other risks specifically related to RusHydro and its operations.