Gas turbine developments |
Mitsubishi megadeals
Mitsubishi Power has received a contract for a 2800 MW combined cycle power plant in Taiwan. The power plant, to be operated by state-owned Taiwan Power Company, is located in Tung Hsiao, Miaoli County.
It is a full turnkey project led by Mitsubishi Power, working jointly with CTCI Corporation, a major Taiwanese engineering and construction company.
It will comprise five units equipped with M501JAC (J-Series Air-Cooled) gas turbines. The total contract value, including CTCI’s share, is some 760 billion yen (5.2 billion US dollars). The Tung Hsiao power station is about 130 km south west of Taipei. Based on Taiwan’s long- term power supply development plan, renewal work is being conducted at the facility site to replace existing power plants with new plants. The main focus of the renovation is to increase power generation capacity while at the same time reducing environmental impact. The five new M501JAC based combined cycle units are scheduled to start operation sequentially during 2030 and 2031. Mitsubishi Power will supply the M501JAC gas turbines, steam turbines, and auxiliary equipment, while CTCI will be responsible for construction and balance of plant. The generators will be supplied by Mitsubishi Generator Co.
Next to the new units are combined cycle power plants updated in the first phase of the renewal plan, employing three Mitsubishi Power M501J gas turbines, which have been in operation since 2018. These units were supplied under a contract received by Mitsubishi Power and CTCI jointly in 2013.
First JAC turbines in Vietnam Mitsubishi Power also reports the award of a contract in co-operation with Doosan Enerbility, to supply two M701JAC gas turbines and auxiliary equipment for the O Mon 4 combined cycle power plant, Vietnam.
The O Mon 4 plant, with a design capacity of 1155MW, is being developed by Petrovietnam, with the EPC (engineering, procurement and construction) contract awarded to a consortium of Doosan Enerbility of South Korea and
Vietnam’s Power Engineering Consulting Joint Stock Company 2 (PECC2).
The project will see the first deployment of JAC gas turbines, capable of >64% combined cycle efficiency, in Vietnam.
The plant is scheduled for completion in 2028. O Mon 4 will provide stable electricity supply for the Mekong Delta, boosting Petrovietnam’s installed capacity to more than 9 300 MW, equivalent to about 10% of Vietnam’s national installed capacity. The project is part of the Block B - O Mon gas-to-power project chain, a national priority initiative designed to strengthen Vietnam’s energy security and accelerate the country’s energy transition.
With O Mon 4, Mitsubishi Power says it is strengthening its support for Vietnam’s Power Development Plan VIII (PDP8), which calls for diversifying the energy mix, reducing coal dependency, and expanding natural gas and renewable energy.
Groundbreaking initiative in blast furnace gas
At the other end of the size and fuel spectrum, Mitsubishi Power has reported receipt of its first order for a 100 MW combined cycle plant using its newly developed M100S gas turbine, to be fired on blast furnace gas.
The order was placed by Jiangsu Lihuai Steel a subsidiary of Jiangsu Shagang Group, a major Chinese steelmaker.
“Responding to growing demand from China’s steel industry for energy efficiency and decarbonisation,” Mitsubishi Power says the “medium to small” M100S gas turbine has been developed by combining technology for BFG-fired large-scale turbines, where Mitsubishi Power has extensive operational experience, with
technology for state-of-the-art natural gas-fired JAC gas turbines, which boast high performance and reliability.
Mitsubishi Power says the M100S gas turbine can serve as a replacement for the conventional small-scale BTG (boiler, turbine, generator) power plants widely used in the Chinese steel industry. Building on this first project, Mitsubishi Power says it aims to be at the forefront of meeting the demand for replacing outdated small-scale BTG power plants in the industry.
In addition to blast furnace gas, the new gas turbine can be co-fired with various gases generated as byproducts from steel plant equipment such as coke ovens and converters, says Mitsubishi Power.
It is capable of flexible operation, able to deal with fluctuations in gas volume, and responds quickly to load fluctuations in the steel plant, says Mitsubishi Power, noting that BFG-fired gas turbines, by efficiently utilising byproduct gas from steel plants, reduce environmental impacts, support compliance with air regulations, and contribute significantly to the efficient use of energy.
Jiangsu Lihuai Steel plans to begin operation of the GTCC power plant at its steel plant in Huai’an City, Jiangsu Province, in 2027.
The M100S gas turbine and related equipment will be manufactured and supplied by Mitsubishi Power’s Takasago Machinery Works (Takasago, Hyogo Prefecture), with other equipment procured locally in China, including from Dongfang Turbine, a group company of Dongfang Electric Corporation, a licensed manufacturer for Mitsubishi Power.
Visualisation of O Mon 4 combined cycle power plant project (Image: Petrovietnam)
In China’s steel industry, in line with the move towards energy conservation and decarbonisation, demand is growing for the replacement of existing BTG power plants, which have limited power generation capacity and low efficiency, with high-efficiency equipment. The introduction of the M100S gas turbine, which is more efficient than conventional small- sized BTG systems, is described by Mitsubishi Power as a “groundbreaking initiative” in the blast furnace gas power generation market. Blast furnace gas has a lower calorific value than natural gas and other fuels, and advanced technology is required for its stable combustion. Mitsubishi Power estimates its global market share for BFG-fired gas turbines exceeds 60% and believes that the addition of the new M100S gas turbine to the existing lineup will further enhance its position as a pioneer in this field.
12 | January/February 2026 |
www.modernpowersystems.com
Visualisation of the Tung Hsiao power plant, new units, left
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45
