Siemens Power Generation (PG) has been awarded multi-million Euro contracts to deliver industrial turbocompressor units to the SRTO-Torzhok gas pipeline in Russia and a combined cycle plant in California, USA. PG has also been was awarded a major service order for a combined cycle plant in Riga, Latvia. The combined value for the orders is approximately 160 million Euros.
PG will provide three turbocompressors to the Vuktylkskaya compressor station on the SRTO-Torzhok gas pipeline in Russia, which will be connected to the Yamal pipeline to form part of a distribution system to Western Europe.
Each compressor train consists of an STC-SV turbocompressor, driven by an SGT-600 mechanical drive turbine. The order is almost identical to the one taken in 2003 for nearby Ukhtinskaya, the next station down the line.
Commercial operation is scheduled for the spring of 2006. Including this order, Siemens PG has supplied 25 gas turbine compressor strings to compressor stations along the Yamal Pipeline in Russia, Poland and Germany.
PG has also been contracted by the US Municipality Roseville Electric to supply the power island equipment for the New Energy Park in Roseville California, USA.
Siemens’ scope of supply comprises two 45-MW SGT-800 gas turbines, two duct-fired heat recovery steam generators, and a single 85-MW SST-900 steam turbine.
Engineering, project management and technical field assistance also are included, as are the total plant output and heat rate performance. Commercial operation is scheduled for spring 2007.
Siemens said in a statement that the plant at the Roseville Energy Park will be a benchmark for highly flexible, environmentally friendly power generation. The 166-MW plant, which will be used primarily to supply power during peak summer months, can also be operated off-peak at 33 MW and still meet its emission guarantee of 2ppm Nox and 4ppm CO. The 2×1 design and optimised thermal cycle will enable a minimum efficiency of 44 percent at all load levels and up to 53 percent efficiency in base-load operation.
In Riga, Latvia, PG has been awarded a 15-year preventive maintenance contract for a 140-MW combined cycle plant. The contract includes five major overhauls and intermediate inspections for all three turbines (two gas turbines and one steam turbine). The SCC 800 2×1 plant is currently being built by Siemens PG as a turnkey project. The plant is owned by the Latvian national electricity company Latvenergo.