Source: China Electric Power News
-- Written in the world's largest 350 MW salt cave compressed air energy storage demonstration project in Tai 'an, Shandong Province
The world's first low melting point molten salt high-temperature adiabatic compression technology, the world's first single power, the world's first conversion efficiency, the world's first energy storage scale, annual power generation of about 1 billion KWH...... Two 300 MW salt caver compressed air energy storage innovation demonstration project in Taian, Shandong 350MW units, once again show the innovation "altitude"! China Energy Construction in the key core technology core equipment field continues to break through, relying on the independent research and development of large-scale compressed air energy storage system, build a new type of energy storage scale safe development advantages, played a new Chinese energy storage beautiful music, with a high attitude to meet the Party's 20th victory.
"Shandong Tai 'an compressed air energy storage project bears the heavy task of helping Tai 'an to build a national" energy storage capital ", and bears the heavy trust of the whole industrial chain's localization collaborative innovation, which is related to the overall situation of the high-quality development of the future energy storage industry, and the responsibility is heavier than Mount Tai." After the completion of the project, it will promote compressed air energy storage technology to a larger installed capacity, higher conversion efficiency, more advanced application platform, and more economical engineering cost, which has a typical leading demonstration significance and promotion value." On September 28, Wan Mingzhong, secretary of the Party Committee and chairman of China National Energy Engineering Group, said at the commencement ceremony of the 350MW salt caverns compressed air energy storage demonstration project in Tai 'an, Shandong Province, the world's largest.
Large-scale long-term energy storage is the key technology to support the construction of a new power system, is the only large-scale physical energy storage technology that can benchmark pumped storage, called the "super green charging treasure" of a new power system, has practical significance to promote the green low-carbon energy transformation and ensure energy security, and has become the overall need, the trend of The Times, and the direction of the industry. It is ushering in the tide of large-scale, integrated and digital development. The Tai 'an Project is another large-scale long-term new energy storage project after the world's first 300 MW compressed air energy storage demonstration project invested by China's energy construction main body started.
The world's first high temperature adiabatic compression technology of molten salt with low melting point
Shandong Tai 'an two 300 MW level compressed air energy storage innovation demonstration project by China can construction number Science Group, China can construction East China Construction Investment, Tai 'an Taishan New Energy Development Co., Ltd. and other units jointly invested, the first phase of the project investment plan of 2.23 billion yuan. In the first phase, a 350 MW /1400 MWH unit was built, and a 325 ° C low temperature molten salt heat storage and high temperature adiabatic compression system was proposed. The designed energy storage/charging time was 8 hours, and the energy release/discharge time was 4 hours. With the high temperature insulation scheme, the comprehensive conversion efficiency of the system reaches more than 70%, the efficiency level is the first in the world, and the annual power generation after the two phases are fully put into operation is about 1 billion KWH.
"Shandong Tai 'an project system integration degree is high, the early development of the system efficiency and project cost level put forward world-class standard requirements, the project uses China can build independent research and development of large capacity non-secondary combustion 'low melting point molten salt + medium temperature hot water' heat storage of high temperature adiabatic compression technology, It has formed a new large-scale compressed air energy storage technology that is autonomous and controllable, takes into account system efficiency and engineering cost, and the system has great advantages in electric-electric conversion efficiency." Tao Gang, head of the new energy storage Research Institute of China Can build Number Science Group, stressed.
It is understood that the project in the large flow, high pressure ratio of large axial flow/centrifugal compressor, large capacity, high parameter air turbine and high efficiency salt gas heat exchanger, etc., are the first application in the field of compressed air energy storage, to achieve the engineering key equipment of 100% of the domestic rate, the establishment of completely independent intellectual property rights and a complete series of standards and specifications, We will promote the transformation and upgrading of the domestic manufacturing industry and establish a fully independent industrial chain.
"In terms of engineering application, China Energy Construction will further optimize the core technical indicators, comprehensive system conversion efficiency and engineering cost, and promote the commercialization of large-scale energy storage technology." China can build a number of science Group party committee member, deputy general manager Li Jun said.
In addition, Shandong Tai 'an project is equipped with compressed air energy storage simulation system, enabling the whole process of digital intelligence technology to create a digital twin of energy storage power station, based on the three-dimensional visualization platform, combined with big data, artificial intelligence, Internet of Things and other technologies, through the integration of management and technology, to achieve the active management and control of equipment, personnel and environment. To realize the "technology + digital" collaborative development and construction in the field of compressed air energy storage, leading the development of green energy industry and low-carbon energy consumption transformation.
Contribute to the national "energy storage capital"
"Shandong is a large power province in China, and the total installed power capacity ranks first in the country. Since the beginning of this summer, affected by the continuous high temperature, Shandong's power demand has grown rapidly, and the electricity load has repeatedly reached new highs, breaking through the 100 million kilowatts mark for the first time, posing a greater challenge to the power supply guarantee." Luan Jian, secretary of the Party Group and director of the Shandong Provincial Energy Bureau, said at the commencement ceremony of the 350MW salt caver compressed air energy storage demonstration project in Tai 'an, Shandong Province, that with the construction of a new power system, the proportion of new energy and renewable energy installed has increased rapidly, and it is imperative to promote the high-quality large-scale development of new energy storage.
Shandong Tai 'an is located in the geographical center of Shandong Province and the load center of Shandong power grid, with convenient system access and convenient local energy storage consumption. Tai 'an Dawenkou Basin is the largest rock salt deposit in Shandong Province. After more than 30 years of mining, 67 pairs of 15 million square meters of salt caverns with huge volume, good sealing and high stability have been formed. It has the inherent advantages of salt caverns energy storage and gas storage, which can realize the resource utilization of abandoned salt caverns, and transform and utilize the salt mines in Dawenkou Basin to mine cavities, which can foster innovative new energy storage modes. To build a national important salt cavern compressed air energy storage base.
"China Can build Data Science Group will take this project as an opportunity to give play to the advantages of China can build industrial chain 'chain length', with Tai 'an City, Shandong Province as the center, large-scale construction of 300 megawatt compressed air energy storage power station, forming a large-scale energy storage power station group with long-term energy storage as the center, play the role of energy storage technology peak load, valley filling, forming a stable power supply, strengthen the power consumption of foreign power into Lu. A multi-component energy storage system supported by salt cavern compressed air energy storage, pumped storage and supplemented by electrochemical energy storage will be built in Tai 'an area to build a ten-kilowatt energy storage capital." Wan Mingzhong said.
The construction of the project plays an important role in promoting the commercialization, scale and industrialization of large-scale compressed air energy storage technology and ensuring the safe and stable operation of the power system in Shandong Province. At the same time, it is also of great significance to realize the comprehensive reuse of salt cavern resources in Shandong Province, promote regional economic development and prosperity, and accelerate the transformation of old and new kinetic energy in Shandong Province.
"Shandong Province has included new energy storage in the key breakthrough of the '14th Five-Year Plan' plan, introduced the country's first energy storage demonstration application implementation opinions, and launched energy storage priority, flat input and flat output, priority power generation plan rewards, more work more money and other policy red envelopes." Shandong Provincial Energy Bureau Party secretary, director Luan Jian said.
Build an integrated solution of "research, investment, construction and operation"
"Through the design of 300MW compressed air energy storage integration scheme, the development of the first set of equipment, investment model research, demonstration project construction and operation, forming the overall solution of" research, investment, construction and operation integration "of China Can build, and cultivating the ability to independently carry out large-scale compressed air energy storage full life cycle industrialization. Policy, technical and commercial exploration for the subsequent large-scale construction." Wan Mingzhong said.
Large-scale compressed air energy storage industry is an important power point for China to implement the "double carbon" goal and build a new power system, an important traction for China to accelerate capital + technology + digital multi-wheel drive, and a powerful measure to rebuild a high-quality development of new energy construction. It is of great strategic significance for China to build a "capital of energy storage", and take Shandong as its base to radiate East China's regional energy storage industry base and serve the overall situation of the national unified market.
"The world's first 350 MW compressed air energy storage project in Tai 'an, Shandong province, is another major breakthrough for China to build and practice the national energy revolution." Wan Mingzhong said that as the national team and leader in the field of energy and power in China, China can build will focus on the "dual carbon" system solution "one center" and the "two basic points" of energy storage and hydrogen energy, to implement the "dual carbon" goal of high quality, ensure the essential security of national energy, and build a modern socialist country to contribute the wisdom of building, play the power of building, and show what can be built. (Yu Haijiang and Zhao Xueming)
Responsible Editor: Du Min