MHI Receives Order for GTCC Power Generation System

The natural gas-fired GTCC power plant will be built in Navoi City, the capital of Navoi Province, which is in southwestern Uzbekistan and is one of the country’s largest industrial centers. The economy of the Navoi region is currently enjoying a boom fueled by production of natural resources, including oil, natural gas and precious metals, as well as chemical fertilizer and other material manufacturing. When completed, the new power generation system will stably supply electricity and heat (hot water) to the Navoi Free Industrial Economic Zone and thereby contribute to the development of industry in the region.

The GTCC power generation plant to be built in Navoi consists primarily of one M701F gas turbine, one steam turbine, one heat recovery steam generator and two generators. MHI will provide the gas and steam turbines and Mitsubishi Electric Corporation will supply the generators. INITEC Energia, an ACS Group company, will be responsible for overall engineering of the facility and Calik Enerji Sanayi ve Ticaret A.S., a Turkish construction company, will perform civil engineering and installation work at the site. Mitsubishi Corporation will handle the trade particulars. The ACS Group is the largest construction company in Spain and the third in Europe.

Uzbekistan became an independent state after the breakup of the former Soviet Union in 1991. Thanks to successful market-oriented economic reforms, the country has maintained a high economic growth rate of 7–9% since 2004. Along with this economic development, stable supply of electricity and efficient utilization of natural gas have been matters of immediate priority. To address these issues, Uzbekistan is conducting a program to modernize its power generation plants, including installation of high-efficiency GTCC systems in aged power and heat cogeneration plants. The latest order is part of this initiative.

With GTCC type power generation, gas and steam turbines are used in combination to generate electricity in two stages, utilizing high-temperature exhaust gas from the gas turbine. This configuration enables GTCC power plants to achieve higher thermal efficiency than non-GTCC plants such as conventional boiler steam turbine plants. Higher efficiency means that GTCC plants reduce fuel consumption relative to electricity output and emit less CO2, thus making them friendlier to the environment.

MHI has delivered numerous GTCC power generation systems in Japan and abroad, and in the process has gained widespread trust in the market for its proprietary technologies and prompt delivery record. On the strength of the latest order, going forward MHI intends to further strengthen its marketing activities of highly efficient GTCC power generation systems that contribute to efficient use of energy and reduction of environmental burdens.