Another first for Siemens: Four SGT-800 gas turbines and associated generators have just been ordered for he Shanxi Guoxin Baode and Xiyang decentralised energy projects in Central China. The order prompts the first installation of a SGT-800 in China. Start of the two combined-cycle plants is scheduled July 2017.
Once operational in summer next year, the two combined cycle power plants (CCPPs) with heat extraction will have an overall capacity of 308 MW. "This first order of SGT-800 gas turbines is a breakthrough success for us on the fast developing Chinese decentralized energy market," said Yao Zhen Guo, country division lead for Power & Gas / Wind Power & Renewables in China.
Decentalised energy is high on the agenda of Chinese policy makers; hence special policies have been set in the 12th Five-Year Plan for Renewable Energy Development. The Shanxi Guoxin Baode and Xiyang power plants will help realise these ambitious plans.
Plants to run on coalbed methane
Both combined cycle power plants will be fired with coalbed methane, a form of natural gas from an unconventional gas reservoir with high hydrogen content. Siemens stressed that “the SGT-800 is able to fire this gas due to its high fuel flexibility.”
The customer is Shanxi Natural Gas, a subsidiary of Shanxi Provincial Guoxin Energy Development whose chairman Liang Xiehu welcomed the cooperation with Siemens and pointed out that the “he success of the project requires strong and committed partners. We are convinced that with its technology expertise and proven successful references across the globe, Siemens is the right one."
As per the order, Siemens will deliver four gas turbines of type SGT-800 with the 54-MW rating. Two gas turbines and two generators are to be installed in a 2x1 CCPP with heat extraction at each site. Siemens also supplies all associated auxiliary systems as well as installation and commissioning services for the projects.
Worldwide, a total of 297 SGT-800 gas turbines have been sold and the fleet has accumulated about 4 million operating hours. The efficiency and steam-raising capability of the SGT-800 makes the turbine “especially suitable for cogeneration and combined cycle applications”, the German OEM said, highlighting its reliability ,efficiency and low life-cycle cost.