"The role of GTS!" | "Large-scale integration of RES in Central Asia (21 Centure)".
Adil Kabzhanov
International Expert | Consultant SmartGrids & Utility Solutions | Mercados-Aries International
In 2020, an article was published by Chen Juanjuan a professor of a Heilongjiang University, which reflected the scheme of gas supplies via the Beiner-Bozoy-Shymkent-China gas pipeline.
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As can be observed recently, the second phase of the China-Kazakhstan gas pipeline connects Beineu in the Mangystau region, through Bozoi in the Aktobe region and connects to the China-Central Asia gas pipeline in Shymkent, Southern Kazakhstan, with a total length of 1,454 km, with an annual capacity of 10-15 billion cubic meters of gas. The pipeline was built in two stages:
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1) from Bozoi to Shymkent, with a length of 1,143 km, was started in July 2012 and was completed in September 2013;
2) from Beineu to Bozoi, with a length of 311 km and was completed in 2015.
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It was mentioned that the second phase of the China-Kazakhstan gas pipeline can solve the problem of insufficient gas supply in the south of Kazakhstan and at the same time stimulate the development of the Ulikhetao gas field. The growth of gas production can also be exported to China through this channel.
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According to the data from the national oil company "Kaztransgas" LLP. The scheme of the presence (of the gas transmission system in the south of Kazakhstan) looks as follows.
The diagram of power grid shows the intersection of the gas transmission system with large electrical nodes in the Zhambyl, Shymkent and Almaty regions. So, in particular, the locations coincide visually with the substations. 500 kV, such as Shymkent-500 , Zhambyl-500, Shu-500, Almaty-500, Alma-500, etc., as well as ZHGRES. Taking into account this fact and the fact that the map of solar radiation in Kazakhstan shows that the greatest solar activity is located in the southern regions, it can be assumed that the most profitable place for the development and integration of renewable energy is in the region of the above-mentioned substations. Also, another important advantage can be considered the presence of ZHGRES in the designated region, which runs on gas and has an installed capacity of 1230 MW. At the moment, the ZHGRES, due to problems with gas supplies, operates (the project fuel is Bukhara gas) with only one unit. I believe that if the issue of maintaining pressure is resolved, it will be possible to build gas-fired power plants along the gas transmission system, which in turn, including ZHGRES, will support the operation of renewable energy sources and cover their variability.
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For this I think it will be necessary:
1. Equipping stations with gas-holder to maintain the necessary working gas pressure at power plants.
2. Construction and development of gas storage systems that will support gas power plants in maximum load modes and the gas transmission system during a decrease in gas consumption.
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A similar symbiosis is being implemented in the USA and Europe, where the integration of renewable energy is successfully taking place. It is there that the work of Variable Renewable Energy receives serious support from a developed and powerful gas transportation system.
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A similar case is also applicable for Uzbekistan, which also has a more or less developed gas transmission network, sufficient installed capacity of gas power plants, the use of which is fully hindered by the lack of gas storage systems and maintaining the necessary operating pressure.
You can also read my post:?Three-Phase System – Starting point!,
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Head of dispatch service
2 年Great job Adil!