From Wikipedia:
Before Chavez:
Since 2000, there is an ongoing refurbishment project to extend the operation of Guri Power Plant by 30 years. This project is to create 5 new runners and main components on Powerhouse II, and close to the end of 2007 is starting the rehabilitation of four units on Powerhouse 1
In 1978, C.V.G. Electrificación del Caroní, C.A.(EDELCA) awarded Hitachi the contract to install the 10 turbines of Phase 2. In 1985, Hitachi installed a computer system for the powerhouse for then owner C A E International; it also designed, manufactured and installed a monument called "Torre Solar".
In 1989 Hitachi installed baffles and draft tubes for twelve 730 MW units in Power House 2.[8] It did a major overhaul of 180 MW generating water turbine units number 1, 2 and 3 in Power House 1 and revamped guide rings on 730 MW generating units number 13 to 20 in Power House number 2 until 1993.[8]
From 1992 until 1997 C.V.G. Electrificación del Caroní, C.A.(EDELCA) revamped runner cones of 730 MW generating units in Power House 2, units 11, 13 until 20. From 1997 until 1998 Hitachi did a major overhaul of 223 MW generating water turbine units number 5 and 6 in Power House 1 and sent welders for repairs in runner vanes of unit 11 and 12. In 1998, EDELCA refurbished two floodgates, and from 1999 - 2001, it overhauled the 270 MW generating water turbine units number 4 and 7 in Power House 1.[8]
After Chavez
In 2000, EDELCA painted two metallic stairways located in earth preys. From 2002 - 2005 G.E. NORCAN Hydraulic Turbine Inc Proyecto Guri II (Venezuela) disassembled, refurbished and reassembled 5 units: During 2002, Mitsui de Venezuela, C.A. (for Toshiba) helped remove Unit 13 rotor blocks and EDELCA supplied steel for the extension of metallic lining of Unit 18's aspiration tube in Power House 2. Fromm 2002-2003, CVG rehabilitated valves and pipes of Unit 19's generator cooling system in Power House 2; Mitsui repaired and assembled the rotor of unit 13 and took corrective measures for the stator in Power House 2, while CVG rehabilitated valves and pipes of unit 13's generator cooling system.[8] During 2003, CVG machined holes of unit 19's stator base in Power House 2. From 2003-2004, Mitsui overhauled unit 17's generator in Power House 2. From 2004-2005, CVG rehabilitated the cooling system in units 14 and 17 in Power House 2. During 2006, CVG refurbished runners of units 16 and 20 and later 9. From 2006-2009, Alstom Hydro Venezuela S.A. worked on rehabilitation of an overhead crane in Power House 1 and 2 and other rehabilitation until 2011. From 2007-2008, CVG repaired runner blades of Unit 7.[8]
In 1988, Hitachi, Ltd founded affiliate company HPC Venezuela C.A (or VHPC), which stands for Hitachi Plant Engineering and Construction.[
No major projectas after 2009
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