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Installation of Hydro-electric Generating Units Underway at the Boguchanskaya HPP

October 29th, 2010. Moscow, Russia. JSC RusHydro (ticker symbol: RTS, MICEX, LSE: HYDR; OTCQX: RSHYY) announces that installation of hydro-electric generating units (later in the text, "GU") nos. 1 and 2 for the first start-up complex is currently underway at the Boguchanskaya HPP. Installation of GU 1 commenced July 1st, 2010 and installation of GU 2 started in early September 2010.


A GU is installed in several basic phases, including: installation of operating mechanisms - 710t, assembly of the rotor - 930t, assembly of the stator - 425t, installation of the rotor and the installation of GU auxiliary systems - 265t. Primary work related to the installation of operating mechanisms on GU 1 has been completed to date: the turbine runner, shaft and cover have been mounted and stator segments are currently being installed in the GU pit. The GU 2 runner has been mounted in the unit section pit and component grinding is underway. The equipment is installed using turbine room cranes with capacity of 525/100+10t.


The Boguchanskaya HPP turbines are the largest by weight and dimensions among those manufactured in Russia during the last decades. Each runner is 7.86 m in diameter and weighs 155.6t.


Contracts for manufacturing hydro-power and hydro-turbine equipment for the Boguchanskaya HPP were signed in 2006-2007 between OJSC Power Machines and the HPP project partners - JSC RusHydro and UC RUSAL. The total value of the contracts exceeds RUR 6 billion, with equipment deliveries scheduled to be completed in 2012. Under the contracts, Power Machines is to provide the design, manufacture and delivery of 9 hydro-turbines and 9 generating units, each with 333 MW of designed capacity, to the BoHPP.


The GU stators for the Boguchanskaya HPP were manufactured by Izhorskiye Zavody, which is part of  the Objedinennye Mashinostroitelnye Zavody (United Heavy Machinery Plants) (OMZ). Each stator casing weighs 100 t and is 15 m in diameter and 4 m tall. In December 2009, OMZ Group and Power Machines entered into a contract for manufacturing metal structures. Under the contract, Izhorskiye Zavody must manufacture three stator casings, rotor frames, upper brackets and other equipment for the Boguchanskaya HPP. The contract is scheduled to be completed in January 2011.


Due to the fact that some heavy-weight and large-sized equipment can only be delivered to the construction site as separate parts and components, these items are pre-assembled in a special assembly area prior to final assembly. Assembly of the GU 1 rotor and the GU 2 cover is currently underway in this designated area.


Assembly and installation work involves 91 people, including: 9 technicians and engineers. Primary and auxiliary hydro-power equipment for the Boguchanskaya HPP is assembled and installed by CJSC Yenisei-Spetsgidroenergomontazh (Sayanogorsk) under constant monitoring by construction supervisors representing: OJSC Power Machines, CJSC Organizer of Construction of the Boguchanskaya HPP, CJSC Building Owner of the Boguchanskaya HPP and OJSC Boguchanskaya HPP Operation Service.


The installation period for the main GU will be 11 months, plus one additional month for pre-commissioning. For the second and all subsequent GUs, the installation plus pre-commissioning period will be 10 months.


Pre-commissioning of the project will start after the Boguchanskaya HPP upstream waterfront is raised to an elevation of 178 m. The Company expects that the reservoir will be filled late Q3 - early Q4 2011.


As of October 2010, BoHPP preparedness for launching the first stage, which involves commissioning three GUs, each with 333 MW of designed capacity, is as follows:


asphalt concrete laying into the rockfill embankment - 100%; earth and rock work - 99%; concrete and reinforced concrete laying into the gravity dam - 92%; installation of metal structures and hydro-mechanical equipment - 86%, installation of crane facilities - 48%; installation of hydro-power equipment -50%.


JSC RusHydro and UC RUSAL resumed the Boguchanskaya HPP projectin 2006 after signing an agreement on the joint implementation of the Boguchanskoye Energy and Metal Complex (BEMO) project, which incorporates the Boguchanskaya HPP with an installed design capacity of 3,000 MW and an aluminum plant with a 600,000 tons per annum metal capacity.


Phased commissioning of 9 GUs at the Boguchanskaya HPP, which is scheduled to reach full capacity in 2013, underlies the State investment project "Integrated Development of the Lower Angara Region." This project is aimed at further developing the Region's natural resource potential and ensuring energy security for Siberia's United Energy System via private investment. The Russian federal budget, as well as the Krasnoyarsk Territory budget, provides funding for building up the Region's social, transportation and energy infrastructure. From 2006 to 2015, the public-private project "Integrated Development of the Lower Angara Region" will be implemented.


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