Combined cycle |
of “intelligent solutions” that includes an analytical platform which helps optimize power plant operations.
When completed, the eight units will have an installed capacity of 5300 MW.
Construction of the remaining five units is underway and is expected to be completed in 2024, when the final unit starts commercial operation.
The two power plants, each with an installed capacity of 2650 MW, are under construction in Chonburi and Rayong Provinces, approximately 130 km southeast of Bangkok. They will employ natural gas as the primary fuel. Mitsubishi Power is manufacturing and supplying the gas and steam turbines as well as ancillary equipment, while Mitsubishi Electric Corporation is providing the generators. The power generated will be sold to EGAT (Electricity Generating Authority of Thailand). Mitsubishi reports that its J and JAC series gas turbines have amassed over 1.6 million operating hours to date, with 83 units ordered worldwide. In China, Siemens Energy has recently entered into agreements separately with Guangdong Energy Group and Shenzhen Energy Group to deliver a total of four H-class combined cycle power units to their power plants located in the Guangdong–Hong Kong–Macao Greater Bay Area (GBA) in southern China.
The projects take the number of Siemens SGT5-8000H gas turbines sold to date to 100. Under the agreement with Guangdong Energy, Siemens Energy will deliver a 675 MW combined cycle plant, including SGT5-8000H gas turbine, steam turbine, two generators and related auxiliary equipment to a site in Guangzhou owned by Guangdong Yuehua Power Co. The existing coal-fired power plant at the site will be transformed into a high efficiency gas-fired plant. Siemens will also provide long term maintenance services.
The agreement with Shenzhen Energy includes supplying three H class combined cycle power units for the Phase II project at Dongbu power plant and an upgrade project at Mawan power plant. The scope includes three SGT5-8000H gas turbines, three SST-5000 steam turbines, three SGen5-3000W generators, and auxiliary systems. The two projects, both located in Shenzhen, are scheduled to go into operation by the end of 2023 and in mid-2024 respectively. With a population of over 70 million, the GBA is among the most dynamic regions in China. It aims to grow into a global sci-tech innovation centre and provide a role model of sustainable development for the country. In December 2019, Siemens Energy and Shenzhen Energy forged a strategic partnership in the areas of R&D and smart and green energy.
Siemens says there are now 88 SGT-8000H gas turbines in operation on four continents, with over 2.5 million operating hours recorded. Since launch, the output rating of the gas turbine has grown from 375 MW to 450 MW, with load following capability of 80 MW/minute and combined cycle efficiency of over 62%. The SGT-8000H is also capable of hydrogen co-firing, Siemens notes.
26 | June 2022|
www.modernpowersystems.com
Above: Edra’s Malacca combined cycle plant, Malaysia
Above: Chonburi combined cycle plant, Thailand
Above: Locations of Siemens H class gas turbines
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