1. Policy promotion, offshore photovoltaic welcomes the bright moment
1.1. Under the background of “Double Carbon”, coastal areas will increase the development of new offshore energy
Driven by national policies, China’s coastal provinces actively responded to the Party Central Committee’s goal of achieving “dual carbon” and began to focus on the development of the marine photovoltaic industry. The main reasons are: 1) The coastal areas consume a lot of electricity, and the development of new energy is limited by land Resource constraints (centralized power plants involve land acquisition, and the contribution of distributed photovoltaics is insufficient); 2) coastal provinces and cities are rich in marine resources, and the coordinated development of marine photovoltaics and marine wind power can effectively optimize investment costs (submarine cables, power transformation facilities, etc.); 3) Ocean photovoltaics can also be combined with aquaculture, which can increase the overall investment return; 4) The power generation efficiency of ocean photovoltaics has a certain gain compared with ground photovoltaics under the same lighting conditions.
1.2. Shandong Province is at the forefront of offshore PV development
In the past two years, Shandong Province has been at the forefront of the country in the development and construction of offshore photovoltaics. In December 2021, the Shandong Provincial Oceanic Bureau issued the “Guiding Opinions on Promoting the Stereoscopic Use and Management of Photovoltaic Power Generation Sea Areas (Draft for Comment)”, aiming at sea use planning and project site selection, sea use approval, and sea use rights confirmation for fishing and photovoltaic complementary , paid use, supervision and management, etc.; in April 2022, the Shandong Provincial Government announced the “Shandong Province’s 2022 “Stability and Progress” High-quality Development Policy List (Second Batch)” to actively promote offshore photovoltaic pilot projects Demonstration policies; in March and July 2022, the Shandong Provincial Energy Bureau issued the “2022 Provincial Energy Work Guidance” and “Shandong Province Offshore Photovoltaic Construction Project Action Plan”, the latter pointed out:
1) Create a technologically advanced, eco-friendly, and intelligently integrated dual 10-million-kilowatt offshore photovoltaic base in the “Bohai Rim and along the Yellow Sea”. The “Bohai Rim” 10 million-kilowatt offshore photovoltaic base has 31 offshore photovoltaic sites, with a total installed capacity of 19.3 million kilowatts. Among them, there are 20 photovoltaic sites with an installed capacity of 14.1 million kilowatts; and 11 “scenery and wind” sites with an installed capacity of 5.2 million kilowatts. The 10-million-kilowatt offshore photovoltaic base “along the Yellow Sea” has 26 offshore photovoltaic sites, with a total installed capacity of 22.7 million kilowatts. Among them, there are 9 photovoltaic sites with an installed capacity of 9.5 million kilowatts; 17 “scenery and wind” sites with an installed capacity of 13.2 million kilowatts. 2) It is necessary to accelerate the development and construction of pile-based fixed offshore photovoltaics. By 2025, a total of about 13 million kilowatts of construction will be started, and about 11 million kilowatts will be connected to the grid. 3) Actively and steadily promote the development of floating offshore photovoltaics. By 2025, strive to start construction of 2 million kilowatts and complete grid-connected 1 million kilowatts.
2. Offshore photovoltaics: the main battlefield of floating power stations
2.1. Water surface photovoltaic power stations are divided into two categories: pile foundation fixed type and floating type
Photovoltaic refers to a new type of power generation technology that directly converts solar energy into electrical energy. Usually large-scale onshore photovoltaic projects need to occupy more land area and land resources, while offshore photovoltaic power generation is a new energy utilization method and resource development model, which moves the “photovoltaic power station” from land to sea. The use of photovoltaic technology to build power stations has the characteristics of high power generation, less land occupation, and easy integration with other industries. Compared with land-based photovoltaics, marine photovoltaics have natural environmental advantages: the water surface is open without shelter, and the sunshine is longer and fully utilized (reflected light on the water surface), which can significantly increase power generation. Water surface photovoltaic power plants are divided into two categories: fixed pile foundation and floating type, each of which has its own application scenarios. In general, if the water depth is less than 5m, the pile driving installation is adopted, and the water depth is more than 5m, and the floating installation can be adopted.
(1) Pile-fixed (elevated) marine photovoltaic power station
Pile-fixed water surface photovoltaic power station, also known as elevated water surface photovoltaic power station, is often suitable for water surface sites with shallow water level, no geological disasters such as site subsidence, and small water level changes, such as aquaculture ponds, salt field drainage ponds, etc. The photovoltaic support foundation of the elevated water surface photovoltaic power station generally adopts prestressed reinforced concrete pipe piles, and is usually built in waters with a water depth of less than 5m. The foundation form adopts the combination of PHC pipe pile heating galvanized steel bracket, and the height of the pile top is more than 0.4m above the water level; in order to facilitate the passage of ships, the lower end of the photovoltaic module is more than 1m away from the highest water level, and the module is installed at an optimal inclination angle. Most of these power stations adopt the construction mode of “complementary fishery and photovoltaic”, that is, use the pond marine resources in concentrated areas of aquaculture to develop and construct photovoltaic power generation projects, and adopt the mode of marine power generation and underwater aquaculture to realize the complementary development of multiple industries.
(2) Floating surface photovoltaic power station
Floating photovoltaic power station refers to the use of floating body materials and anchoring systems to make photovoltaic modules, inverters and other power generation equipment float on the ocean to generate electricity. It is suitable for waters with a water depth greater than 5m and is not greatly affected by typhoons. It is mainly divided into floating tube type and There are two types of pontoon type. Among them, the floating tube type includes HDPE floating tube + bracket, thin-walled steel pipe + pipe filling + external anti-corrosion coating + external anti-corrosion rubber + bracket, stainless steel + tube filling + bracket and other forms; the floating box type includes HDPE standard floating box, HDPE Floating tank+bracket, stainless steel buoyant tank+bracket, high-strength composite concrete buoyant tank+bracket and other forms.
1) Floating tube floating water photovoltaic power station
The “floating tube + support” floating surface photovoltaic power station is a water surface floating system composed of floating tube materials and metal supports. The floating bodies are connected in rows with high-density polyethylene pipes or thin-walled galvanized steel pipes with external anti-corrosion coatings, and the buoyancy of water is used to support the load of the upper photovoltaic system. fixed. This type is suitable for waters with deep water depth and relatively stable water level. When the water level changes greatly, it is necessary to consider the redundancy of array mooring and cable laying.
2) Floating box type floating surface photovoltaic power station
The “floating box + support” floating surface photovoltaic power station is an ocean floating system composed of pure floating box or floating box material and metal support. According to its material and structure, it can be divided into standard high-density polyethylene floating tank form, high-density polyethylene floating tank and metal support combination form, etc.
(1) Standard high-density polyethylene pontoon form
This type of floating system uses high-density polyethylene special buoyant tanks as the buoyant body, and the buoyant tanks are made into corresponding angles according to the inclination angle of the components. This bracket system only uses a small amount of steel connecting pieces, and no steel brackets need to be designed. The weak link of the system is the connecting earrings, which need to go through detailed internal force calculations and mechanical tests. If the force requirements are not met, local node reinforcement is required. The component support system is the same system as the floating body system, which is greatly affected by ocean fluctuations, so high-density polyethylene materials need to take measures to enhance durability.
(2) Combination form of high-density polyethylene floating tank and metal bracket
This type of floating system uses high-density polyethylene floating tanks as floating bodies, and metal brackets are erected on the upper part, and photovoltaic modules are fixed on the upper part of the brackets; because the standard high-density polyethylene floating tanks have a weak link that is less stressed by connecting earrings, this type is derived. floating form. This type of floating tank only bears the buoyancy and the pressure of the upper support system. The large horizontal force generated by wind load, water flow force and wave force is borne by the metal support with strong bearing capacity, which can give full play to the advantages of each component. It is an ocean floating photovoltaic system. A floating system widely used in power stations. Similarly, the high-density polyethylene floating tank used in this system also needs to take measures to enhance its durability to ensure that it can meet the requirements of the design service life of the photovoltaic power station.
(3) Combination of floating tanks and metal brackets made of other materials
This type of floating system uses a floating tank made of stainless steel or high-strength composite concrete as a floating body, and a metal bracket is erected on the upper part, and the photovoltaic module is fixed on the upper part of the bracket. Since the pile-based fixed marine photovoltaic power station fixes the power generation equipment in the offshore or tidal flat area, it is mainly suitable for shallow sea areas, and will face greater technical and economic pressure when moving towards deeper sea areas; Photovoltaic power stations can better overcome the above problems, and the corresponding scope of application is wider, or will become the mainstream form of marine photovoltaic power stations in the future.
2.2. Ocean photovoltaic and ocean wind power will complement each other
Offshore PV and offshore wind power are not in competition. Referring to the experience of wind farms in inland areas, marine photovoltaics can be arranged around wind power towers, and share submarine cables, combiner boxes, transformers, booster stations and energy storage-related facilities with marine wind power, which can effectively reduce the investment cost of new marine energy projects and maintenance costs, thereby increasing the return on investment. The biggest difference between the offshore floating photovoltaic system and the ground photovoltaic power station is that the former replaces the ground piles and brackets of the ground photovoltaic power station with floating body, mooring and anchoring components; in addition to the higher requirements for some components, the design of other parts is similar to that of land. The centralized power station is no different.
2.3. The offshore floating photovoltaic power station replaces the ground piles and brackets of the ground photovoltaic power station with components such as floating body, mooring and anchoring
The floating marine photovoltaic power station system mainly consists of four major systems, namely the floating system, anchoring system, laying system, and grounding system. Among them, the floating system includes photovoltaic array floating system and electrical equipment floating system. Their design needs to be compared and selected, and the floating system that can meet the service life of 25 years is selected; There are three parts to the pile anchoring system; the laying system includes two parts: AC and DC cable laying and collector line laying; the grounding system includes two parts: photovoltaic array grounding system and electrical equipment grounding system.
(1) Floating system
Floating materials mainly provide buoyancy support for photovoltaic power generation equipment, and provide working surfaces for construction and operation and maintenance work. Its quality is crucial to the service life of the floating system. Floating systems usually have to meet the requirement of a service life of 25 years. Under the circumstances of years of exposure to sea wind, wave impact and marine microbial erosion, higher requirements will be placed on the quality of floating materials in order to achieve a normal service life. In the previous exploration stage, the industry has used bamboo, concrete, stainless steel, glass fiber reinforced plastics, aluminum-magnesium alloy, and high-density polyethylene (HDPE) as floating body materials, but the results are uneven; after several years of development, the current industry mainstream technology Modified high-density polyethylene (modified HDPE) is used as the floating material.
Ordinary high-density polyethylene will degrade in the air under the action of ultraviolet rays and high-energy radiation, resulting in discoloration, surface cracking, brittleness, loss of strength and loss of use value, so it is difficult to meet the 25-year life expectancy requirement for normal use in the marine environment ; At the same time, in the actual production process (such as blow molding and injection molding), problems such as parison shark phenomenon or melt fracture are prone to occur. In order to make ordinary high-density polyethylene meet the requirements of floating marine photovoltaic power plants, it needs to be weather-resistant and toughened to ensure that the basic properties of the material such as tensile strength, tensile elongation and The impact strength maintenance rate is greater than 70%.
(2) Anchorage system
The anchoring system can fix the photovoltaic floating body array in a specific range and avoid being scattered by sea wind or ocean current. It is the key point for the reliable operation of the floating system, laying system and grounding system. The anchorage system includes three parts: counterweight anchorage system, special anchorage anchorage system and pile anchorage system, which is also a difficult point in the design of “water surface floating power station”. After the photovoltaic array is assembled, drag it to a suitable position for preliminary positioning, and then connect it to the anchoring system after the adjustment is completed. Under the action of wind load, water flow, waves, etc., the photovoltaic array generates a large horizontal force, and the anchoring force provided by counterweight anchoring and special anchorage anchoring is small, and the number of anchoring points that need to be set is large. The method of anchoring with piles can provide stronger anchoring force and reduce the number of anchors. The method of anchoring piles can also be used in subsidence areas, but it cannot be used in waters with waterproof layers.
(3) Laying system
Different types of laying systems have different construction priorities. Laying refers to the installation method of wire tubes or cables from one place to another, which can be divided into AC and DC cable laying and collector line laying. Among them, the laying of AC and DC cables on the floating system can facilitate construction and maintenance, and the DC and AC cables in the photovoltaic array area should be fixed by floating tanks and set up bridges. If collector lines are to be laid, corresponding measures to adapt to changes in water level should be provided. For high-voltage AC cable laying, laying on floating bodies is preferred, followed by underwater laying. The design should ensure the convenience of later maintenance. When designing the cable, the cable length allowance should be fully considered according to the change of the water level, and the material of the cable sheath should also be determined according to the natural environment of the water area.
(4) Grounding system
The grounding system is a general term for the grounding body composed of multiple metal grounding electrodes and conductors buried in the ground. It is divided into a photovoltaic array grounding system and an electrical equipment grounding system. The grounding resistance of the total grounding grid should not be greater than 4 ohms Gal. The grounding of floating power stations on the water surface is very important. It should be comprehensively determined according to different water surface conditions and component selection and other factors. The grounding downconductor should be equipped with measures to adapt to water level changes and reserve redundancy, and choose a reasonable grounding device.
2.4. Overseas offshore floating photovoltaic power plants have been commercialized
In order to cope with climate change and reduce carbon emissions, the Singapore government announced the 2030 Singapore Green Development Blueprint in 2021, which aims to promote Singapore’s sustainable development and increase the proportion of renewable energy power generation. As a country with scarce resources, the Singapore government has set its sights on the sea and deployed a 5MW offshore floating power station in the Johor Strait. The 5MW offshore floating power station project in the Johor Strait was completed in the first half of 2021 and is currently operating well. It is one of the world’s largest offshore floating photovoltaic systems, with more than 30,000 floating modules supporting more than 13,000 solar panels and 40 inverters. The system is expected to generate approximately 6.02 million kWh of electricity per year, equivalent to the annual electricity consumption of 1,250 four-room HDB flats, and reduce carbon emissions by 4,258 tons. In addition, the system employs a robust constant tension mooring system that is able to withstand changing weather conditions and maintain the stability of all operating equipment on the platform.
3. Analysis of cost reduction curve of offshore floating photovoltaic power station
3.1. Floating photovoltaic power stations at sea or replicating the cost reduction experience of inland floating power stations
At present, the design life of offshore photovoltaic power plants is 25 years or even longer. As an important supporting platform, the floating body system is an important part of the normal operation of the entire power plant. The advantages, disadvantages and costs of different types of power plant floating systems are different (the following are Based on the data of inland floating power stations in the 2017 paper “Analysis of Key Points in Design of Water Surface Photovoltaic Power Stations” (Shang Changzheng), according to industry survey feedback on July 25, 2022, with the improvement of photovoltaic power generation efficiency and the maturity of floating solutions, At present, the related costs of inland floating power stations have been significantly reduced compared with 2017):
1) The floating tube type floating photovoltaic system uses “floating tube + bracket” as the material to make the floating body, which has the advantages of strong durability and optimal inclination angle. The total cost is about 1.50 yuan/W, but it also has the disadvantage of many connection points, which makes construction difficult.
2) The standard floating box-type floating photovoltaic system uses “floating boxes” to make floating bodies. Since only floating boxes are used as materials, it has the advantages of light weight, few connection nodes, short construction period, and adaptability to water surface fluctuations. However, the biggest disadvantage is The cost is high, the total cost is about 1.70 yuan/W, and the connection earring of the buoyancy tank is the weak link of the system.
3) The HDPE floating box + support type floating photovoltaic system uses HDPE floating box and support to make the floating body. Different from the standard floating box type floating photovoltaic system, the HDPE floating box + support type floating photovoltaic system replaces part of the HDPE floating photovoltaic system with support, reducing The amount of the buoyant tank is reduced, the buoyant tank is only used as a floating body to bear the buoyancy, and the larger horizontal force is borne by the metal bracket, which is more reasonable in force, so the cost is lower, and the total cost is about 1.60 yuan/W. It is precisely because of the use of the bracket to make As a result, there are many connection nodes and the construction is difficult. At the same time, the influence of waves on the floating system needs to be considered in the design process.
4) The high-performance reinforced concrete floating box + bracket type floating photovoltaic system uses a new type of high-performance reinforced concrete floating box instead of HDPE floating box, which has the advantages of long life and convenient maintenance. The total cost is about 1.35 yuan/W, but the design process The impact of waves on the floating system needs to be considered, and the water depth under the photovoltaic array should not be less than 0.5m at the lowest low water level.
According to industry research feedback, with the improvement of photovoltaic power generation efficiency and the maturity of floating solutions, the current cost of inland floating power plants has been significantly reduced compared with 2017; It is harsh and puts forward higher requirements for floating systems and anchoring systems. It is judged that the cost of marine floating photovoltaics is roughly the same as the cost of inland floating photovoltaics in the early stage (2017). Referring to the cost reduction curve of the floating body and anchoring system of the inland water surface floating photovoltaic power station, there is a large room for cost reduction of the floating body and anchoring system at sea in the future. It is expected that the cost per watt of offshore floating photovoltaic power plants will decrease as the installed capacity increases. With the continuous improvement of offshore floating photovoltaic technology and the scale effect brought about by the increase in installed capacity, the cost per watt of the corresponding power station will gradually decrease, and is expected to drop from 10 yuan/watt (corresponding to 1MW installed capacity) to 4.25 yuan/watt (corresponding to 500MW installed capacity).
3.2. Industry calculations: The IRR of a certain offshore floating photovoltaic power station may reach 7%, which can be combined with wind power and pastures in the future
Taking the offshore floating photovoltaic system near the Zhoushan Islands as an example to analyze the cost per unit of electricity. Assumptions: 1) The annual equivalent power generation hours are 1084h under the condition of the best photovoltaic inclination angle of the project site at 20°; 2) According to the tiling design of modules, the annual equivalent power generation hours are calculated as 95% of the best inclination angle, that is, 1029.8h; 3) The EPC cost includes materials such as photovoltaic modules, floating bodies, and cables at the input end of the box-type transformer, as well as construction costs, excluding materials and construction costs for the box-type transformer and beyond (shared with wind power); 4) Financing method: 30% of capital, loan 70% (annualized interest rate 5%, loan term 15 years); 5) Fixed asset depreciation method is the average method of years, depreciation is based on 15 years, and the residual value is 10%; 6) Settlement is based on the desulfurization coal-fired benchmark electricity price in Zhejiang Province: 0.4153 yuan /kWh, the carbon trading income is 0.045 yuan/kWh, and the comprehensive electricity price is 0.4603 yuan/kWh; A scale of 500MWp is calculated at 4.25 yuan/watt.
4. Investment analysis: pay attention to enterprises in floating and anchoring links
The development of marine photovoltaics in coastal areas is the general trend, and Shandong Province is at the forefront of policies. It is judged that similar policies may be released in other coastal provinces and cities in the future. Marine photovoltaics can be divided into two types: pile-based and floating. From a long-term perspective, the floating type has advantages over pile foundations in terms of economy and environmental protection; in inland freshwater scenarios, the floating type has become the mainstream. Ocean floating photovoltaic power plants are still in the process from 0 to 1; but with policy support, floating or occupy a mainstream position in ocean scenarios.
4.1 Under optimistic assumptions, the incremental market space for floating bodies and anchorages for marine photovoltaic power stations in Shandong Province alone may reach 27.2 billion yuan and 1.9 billion yuan
As mentioned above, according to our industry survey feedback on July 25, 2022, with the improvement of photovoltaic power generation efficiency and the maturity of floating solutions, the current cost of inland floating power plants has been significantly reduced compared with 2017; The operating environment of the ocean is harsher than that of inland waters, and the requirements for related systems are higher. Therefore, it is judged that the cost of marine floating photovoltaics is roughly the same as the cost of inland floating photovoltaics in the early stage (2017). Based on the cost data in Table 4 (the paper data in 2017), the average cost of “floating body + support” of four different types of inland water surface floating materials is 1.44 yuan/W, and the average cost of anchoring is 0.1 yuan/W. Here we assume that the cost of marine floating materials in 2022 is the same as that of inland floating materials in 2017, that is, the cost of “floating body + bracket” in 2022 is 1.44 yuan/W, and the cost of anchoring is 0.1 yuan/W.
The “Shandong Province Offshore Photovoltaic Construction Project Action Plan” announced by the Shandong Provincial Energy Bureau on July 12, 2022 proposed that “the installed scale of offshore photovoltaics in the Bohai Sea will be 14.1 million kilowatts”, and “the installed scale of offshore photovoltaics along the Yellow Sea will be 9.5 million kilowatts”. The installed capacity reached 23.6 million kilowatts (23.6GW); due to the wider application range of floating marine photovoltaic power stations, assuming that 80% of them adopt the method of floating power stations, the corresponding floating body materials and anchorages have a total market space of 27.2 billion yuan and 1.9 billion yuan; if other coastal provinces and cities follow up with the construction of offshore photovoltaic power stations, the corresponding market space will be larger than our current estimates.
4.2. Analysis of Key Floating System Enterprises
Nachuan shares: signed a strategic cooperation agreement on offshore floating systems to help the company’s business development
The signing of the “Offshore Floating Photovoltaic Strategic Cooperation Framework Agreement” with CIMC Raffles is expected to help the company’s business expansion. In June 2022, the company signed the “Offshore Floating Photovoltaic Strategic Cooperation Framework Agreement” with Yantai CIMC Raffles Offshore Engineering Co., Ltd. The latter will give priority to the company’s new materials in future projects, and the company will be responsible for providing offshore photovoltaic floating bodies Supporting new materials, assisting the other party in the design, verification, construction, installation and follow-up work of offshore photovoltaic projects.
Professional manufacturer of HDPE material products with rich research and development reserves. The company has been focusing on R&D, production and sales of high-density polyethylene (HDPE) winding reinforced pipes and supporting pipe fittings for a long time. The main product is HDPE winding structural wall B-type pipes. It has rich experience in R&D and production of HDPE pipe materials. The two projects currently underway have important strategic significance for the marine photovoltaic industry: 1) Research on the layout and structural design of the high-density polyethylene floating body foundation platform for floating offshore wind power: it can realize lightweight, low-cost, and high-efficiency construction of floating offshore power stations. 2) Development and application of HDPE winding structure wall pipes for long-distance water traction: The developed HDPE winding structure wall pipes for long-distance water traction are suitable for bending immersed pipe operations in marine engineering and long-distance offshore pipeline towing pipe transportation. The company has been focusing on HDPE technology update and product research and development for a long time, and has the ability to manufacture advanced water floating materials.
The Three Gorges Corporation became the largest shareholder, and the company was transformed into a state-owned enterprise. In April 2021, Mr. Chen Zhijiang, the original shareholder of the company, completed the transfer registration procedures with Changjiang Ecological and Environmental Protection Group Co., Ltd. This share transfer means that China Three Gorges Corporation has become the largest shareholder of the company. After the equity penetration, Three Gorges Corporation holds a total of 19.08% of the company’s shares. The Three Gorges Corporation is 100% controlled by the State-owned Assets Supervision and Administration Commission of the State Council, so the company has actually been changed into a state-owned holding company. The change of major shareholders will help the company to create better social and economic benefits, and inject stronger confidence into the market.
Sungrow: Inland water photovoltaic products have significant advantages
A leading manufacturer of photovoltaic equipment in China, with significant advantages in inland water surface photovoltaic products. Founded in 1997, the company is engaged in the R&D, production, sales and service of new energy power equipment such as solar energy and wind energy. The main products include photovoltaic inverters, water surface photovoltaic systems, and wind power converters. The water surface photovoltaic system produced by the company mainly includes floating body products and floating table products, all of which are made of HDPE. Among them, the floating body products include four parts: main floating body, connecting floating body, walkway floating body and combiner box floating body, which have the advantages of super long weather resistance, strong concentrated bearing capacity, resistance to light, oxygen and humidity and heat aging. The floating platform products are mainly inverter boost floating platforms, which have the advantages of good equipment compatibility, high safety margin, reduced line loss, and improved system efficiency. At the same time, the company can provide customers with customized anchoring system design to make the floating platform adapt to different water depth scene and water level drop.
The research and development strength of surface photovoltaic products is strong, and the market share is high. Relying on years of experience in onshore photovoltaic research and development, the company has established a water surface photovoltaic system research and development team. By the end of 2021, it has applied for more than 100 patents on advanced floating body, phalanx anchorage, and inverter boost floating platform, led and participated in the formulation of a number of standards related to floating body technology, and built a number of industry-leading milestone demonstration projects. From a global perspective, as of December 2021, the cumulative global application of the company’s surface photovoltaic system has exceeded 1.7GW, and its market share has remained the first in the world for four consecutive years.
4.3 Analysis of key enterprises of anchorage system
Juli Rigging: The leader of domestic rigging, signed an offshore photovoltaic agreement with CIMC Raffles
A leader in the domestic rigging industry, high-tech rigging helps marine new energy projects. Founded in 2004, the company is a professional enterprise engaged in R&D, manufacturing and sales of rigging. Its main business is R&D, design, production and sales of rigging and related products. It is a leader in the domestic rigging industry. As a leading enterprise in the sling industry, the company has been actively participating in marine projects to create high-quality marine equipment. In June 2022, the company signed the “Offshore Floating Photovoltaic Strategic Cooperation Framework Agreement” with Yantai CIMC Raffles Offshore Engineering Co., Ltd. The company will provide supporting products for offshore photovoltaic anchoring systems to the other party in future projects.
Yaxing anchor chain: world-leading mooring chain technology is expected to benefit from the construction of offshore photovoltaic power stations
The company has the world’s leading technical level and is widely trusted by domestic and foreign customers. The company is an enterprise specializing in the production of anchor chains and marine mooring chains and accessories. It produces marine anchor chains and accessories, offshore platform mooring chains and supporting accessories, etc. The products are widely used in offshore oil platforms, offshore electric fields, marine ranches and other fields. In May 2021, the international standard ISO20438 “Ship and Ocean Technology – Mooring Chain” led by the company was officially published. The R5 and R6 mooring chains produced meet the latest international standards and specifications, and all performance indicators have reached the international advanced level.
The first company to win the bid for the “Three Gorges Leading” ship, the wave of photovoltaic power station construction has brought development opportunities. In July 2021, my country’s first floating offshore wind power platform “Three Gorges Leading” successfully completed the installation of the mooring system and put the platform in place. Yaxing Mooring Chain was the first company to win the bid for the offshore floating wind power platform project. The laying of its mooring system includes the installation of suction anchors and the laying of mooring chains. The “Three Gorges Leading” is fixed by 9 anchor chains. One end of the anchor chain is connected to the seabed, and the other end is fixed on the floating semi-submersible platform through the guide sprocket. With the promulgation of planning and supporting policies for marine power stations in various coastal areas of the country, the number of marine photovoltaic power station projects has increased significantly, and the demand for anchorage products has also ushered in growth, which will add new development opportunities to the company.