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JSC RusHydro announces the most recent progress of restoration work at the Company’s Sayano-Shushenskaya HPP, as of 12:00 September 1st, 2009

JSC RusHydro (ticker symbol: HYDR, MICEX, RTS and LSE) announces that repair and restoration work at the Company's Sayano-Shushenskaya HPP is moving forward according to plan.


More than 2,060 people and 57 pieces of equipment are currently involved in round-the-clock restoration work at the Sayano-Shushenskaya HPP.


Water inflow to the HPP's dam is 2,700 cubic meters per second, and water is released through the spillway at a rate of 2,665 cubic meters per second. The level of the upper pool is currently 537.45 meters, whereas the lower pool currently stands at 324.46 meters.


At the Mainskaya HPP, hydro-units 1, 2 and 3 (with an aggregate 191 MW capacity) are in operation.  The Mainskaya HPP upper pool level is 323.17 meters and 4 of the spillway gates are open.


The water level in the Sayano-Shushenskaya HPP building is now at the 304.64 mark.


Over the last twenty-four hours, 200 cubic meters (from a total of 5851 cubic meters) of metal and ferro-concrete structures have been removed from the site and 1 cubic meter of oil and water emulsion has been gathered up. This work is now complete, and as a result, 198 cubic meters of oil and 545 cubic meters of emulsion have been collected.


Inspection of the HPP's hydro-engineering structures continues. Shore line processing, including emulsion dispersion (in the amount of 76 km) has been completed.

Work has now been finished on removing surface oil pollution from the Yenisei River and the shoreline, and air processing has also been completed. Constant control and monitoring of the Yenisei River water is being exercised.


Booms in the area of the upper pool of the Mainskaya HPP have now been removed.


Work teams are allowed access to the area in accordance with an established access control system, and the Company also exercises strict control over observing labor discipline.

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