| Combined cycle Hirono IGCC plant completed
The Hirono IGCC power plant, Fukushima prefecture
A consortium led by Mitsubishi Heavy Industries has completed construction of the 543 MWe Hirono IGCC (integrated coal gasification combined cycle) plant in Fukushima prefecture’s Futaba district. The new power plant has been handed over to the customer, Hirono IGCC Power GK, with commercial operation starting on 19 November.
This follows the entry into commercial operation in April of this year of the 543 MWe Nakoso IGCC plant, also located in Fukushima prefecture (Iwaki City). Both plants employ the same air blown gasification technology, indigenously developed in Japan. Power generation efficiency is 48% (net, LHV), which is “outstanding…higher than with conventional coal-fired power generation”, says MHI.
The IGCC projects are seen as contributing to the revitalisation of the Fukushima region.
First HLs for Brazil and Greece
Siemens Energy has secured an order for the turnkey construction of the UTE GNA II combined cycle power, part of the GNA integrated LNG- to-power project, located at Port of Açu, in the Brazilian state of Rio de Janeiro. Construction of the power plant is already underway. The customer is the project company Gás Natural Açu (GNA).
GNA II is the second turnkey combined cycle power plant to be provided by Siemens for the LNG-to-power complex, adding a further 1.7 GW, bringing total capacity to 3 GW at the site. GNA I, also supplied by Siemens, started commercial operation in September 2021.
The second order marks the first application of HL class gas turbine technology in Brazil. The Siemens Energy scope includes delivery of the entire power island, which consists of three HL class gas turbines, one steam turbine, four generators and three HRSGs, plus instrumentation and control systems. The Siemens Energy scope will also cover long-term operation & maintenance of the plant, including advanced remote monitoring and diagnostics provided by the Siemens remote operation centre located in Jundiaí, São Paulo. The power plant is being built together with consortium partner Andrade Gutierrez, which will provide the civil works, the infrastructure and the erection works.
“This project is strategic, not only for its grandeur, but also for its geographical location, close to the two main gas pipelines systems in Brazil, in the northeast and southeast of the country”, said Jochen Eickholt, executive board member, Siemens Energy. Also “Our gas turbines for GNA II are ready to burn hydrogen in the future. This means our technology is future- proof.”
www.modernpowersystems.com | November/December 2021 | 45
The Açu Natural Gas project includes the construction of the two combined cycle plants, as well as an LNG regasification terminal, based on an FSRU (Floating Storage Regasification Unit), plus substations and transmission lines to connect the plants to the National Interconnected System.
The “thermoelectric complex” is part of the Açu Gás Hub, a project under development at the Açu port complex aimed to provide facilities for receipt, processing, conversion to electricity and transport of natural gas in the Campos and Santos basins, as well as for importing and storing LNG. A second phase will comprise additional power projects, to be constructed under GNA’s environmental licence for 6.4 GW of thermal installed capacity.
Construction of the GNA I plant started in January 2018.
The two combined cycle plants will supply power to regions such as Espírito Santo, Minas
Gerais and Rio de Janeiro via the National Interconnected System.
Siemens Energy is also supplying its first HL gas turbine to Greece, for the Komotini combined cycle plant in the northeast of the country, with commissioning scheduled for mid-2024. With an installed capacity of 877 MWe, Siemens says it will be “the world’s most powerful combined cycle power plant in 1x1 configuration.” The new plant is of strategic importance for Greece as it will help support the shift away from coal/lignite fuelled power plants.
Customer Terna is building the entire plant for the project company Thermoilektriki Komotinis. The Siemens Energy scope of supply for Komotini includes a power island consisting of an SGT5-9000HL gas turbine, an SST5-5000 steam turbine, an SGen5-3000W generator for the gas turbine, an SGen5-1200A generator for the steam turbine, the heat recovery steam generator, and the SPPA-T3000 control system.
Visualisation of the GNA II combined cycle power plant
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 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65
