1. From January to June 2021, the newly installed capacity of offshore wind power is 2.146GW

On July 28, the National Energy Administration held a press conference. The meeting introduced the newly added installed capacity of wind power. From January to June 2021, my country’s new grid-connected installed capacity of wind power was 10.84 million kilowatts (10.84GW), of which onshore wind power was newly added. The installed capacity is 8.694 million kilowatts (8.694GW), and the newly installed offshore wind power capacity is 2.146 million kilowatts (2.146GW).

Source: National Energy Administration

2. IRENA released the "Offshore Renewable Energy Action Agenda", there will be 2000GW of offshore wind power in 2050

The International Renewable Energy Agency (IRENA) released the latest report "Offshore Renewable Energy Action Agenda". The report pointed out that through clear support for the commercialization of offshore technologies (such as wind energy, wave energy, tidal power generation, ocean thermal energy and floating photovoltaic, etc.) , Actively promote the G20 agenda in order to seek to expand its deployment on a global scale.

In order to put the world on the path of climate security, IRENA’s 1.5°C scenario report (refer to /publications/2021/Jun/World-Energy-Transitions-Outlook) puts forward a forward-looking view, that is, offshore wind power and ocean energy in the next few decades. And floating photovoltaic will get large-scale growth. For example, offshore wind power will increase from 34GW today to 380GW in 2030, and will exceed 2,000GW by 2050. By 2050, Ocean Energy will also add an additional 350GW of offshore renewable energy power generation capacity.

Source: Wind Energy Expert Committee CWEA

3. Envision provides smart energy storage system solutions for the first domestic offshore wind power storage project

Recently, the first domestic energy storage project for offshore wind power, the National Energy Group Guohua Dongtai Zhugensha H1# offshore wind farm supporting energy storage facility project, has entered the energy storage delivery stage. Envision Energy provided a complete set of smart energy storage system solutions including software and hardware for the project, and coordinated control of wind turbines and energy storage systems to help owners maximize their profits.

Guohua Zhugensha H1# offshore wind farm is located in Zhugensha sea area of Jiangsu Province, with a total installed capacity of 200MW. The whole site hoisting was completed on June 30. The project is equipped with an energy storage system based on 5% of the wind farm’s installed capacity and 2 hours of energy storage time. The design capacity is 10MW/20MWh. It uses Yuanjing Power’s lithium iron phosphate batteries, 1500V Yuanjing Smart Energy Storage System Integration and software systems, and is equipped with advanced Auxiliary equipment such as thermal management system, fire protection and monitoring.

Source: Envision Energy

4. The laying of the first submarine cable for the first offshore wind power project in Shandong Province was completed

Recently, as the first end of the first 35 kV submarine cable of the Shandong Peninsula South 4 offshore wind power project was successfully connected to the No. 4 wind turbine, it marked the successful completion of the project’s first submarine cable laying project and also officially sounded the Shandong Peninsula. The start horn of the wind power submarine cable laying project in the South China Sea.

It is understood that the Shandong Peninsula South No. 4 offshore wind power project is a key project in Shandong. It is located in the sea area to the south of Haiyang City. The total investment is about 5.5 billion yuan. It is divided into two parts: onshore and offshore. The land-based centralized control operation and maintenance center covers an area of 21 acres and is divided into five parts: power distribution equipment building, SVG room, living building, operation and maintenance building and pump room. It is mainly responsible for data transmission and wind power monitoring of offshore wind power. The offshore wind farm has a total of 58 wind turbines with a single capacity of 5.2 MW, with an installed capacity of 301.6 MW. After the project is completed and put into operation, the annual power generation will exceed 800 million kWh.

Source: Haiyang Radio and Television Station

5. The first domestic drilling platform to be converted into an offshore wind power installation platform was completed

On July 21, Weihai Jinling and China Power Construction Group Guizhou Engineering Co., Ltd. held the completion acceptance ceremony of the "Guoxuan" platform offshore wind power transformation project.

It is reported that the CJ46 jack-up drilling platform "Guoxuan" is mainly composed of a triangular-shaped main platform, an X-Y cantilever beam, a drilling system and three open truss-type legs. The total length is 65.25 meters, the width is 62 meters, the depth is 8 meters, the leg length is 153.8 meters, the operating water depth is 114.3 meters, and the maximum drilling depth can reach 9144 meters.

In addition to the "Guoxuan" platform, another jack-up drilling platform, "Guoxin", of Guizhou Power Construction, is also undergoing renovation and upgrading at the Haimen Base of China Merchants Heavy Industry. The “Guoxin” ship is JU2000E, with a total length of 70 meters, a width of 76 meters, a depth of 9.45 meters, and a maximum operating depth of 122 meters.

It is said that after the two platforms are refitted, they will go to Yangjiang, Guangdong for wind power installation, which can meet the tower installation, main engine installation, hub, single blade installation, and impeller assembly installation of the Yangjiang Qingzhou Three 500 MW offshore wind farm.

Source: Longchuanfeng Power Grid

6. Offshore wind power pile foundation construction creates another "China's most"

On July 26, China’s first offshore deep-water offshore wind farm in China, which was surveyed and designed by the Guangdong Institute of Energy and Construction and Guangdong Thermal Power, was constructed by the Huadian Yangjiang Qingzhou 3500 MW offshore wind power project. The foundation hoisting and pile sinking of the offshore booster station was completed. construction!

Guangdong Thermal Power is responsible for the general contract for the construction of bid section I of the project, including the basic construction, transportation, offshore construction of 34 wind turbines, and the corresponding 9 35 kV submarine cable laying, 35 wind turbines and tower ancillary equipment installation (20 sets of 6.8 MW, 15 sets of 8.3 MW), the foundation construction, transportation, and offshore construction of the sea booster station, the shipping, transportation and offshore installation of the upper block of the sea booster station, the safety monitoring of the wind farm (8 wind turbines and the foundation of the sea booster station), And supporting temporary navigation mark projects.

The center of the project site is 60 kilometers offshore, the water depth of the site is 42 to 46 meters, and the maximum thickness of the silt layer is as high as 17 meters. The jacket weight of the project's sea ascending station is about 3,050 tons (including slings), and the total height is about 68 meters. The bottom is equipped with an anti-settling board sitting on the bottom. The post-piling method is adopted for the construction of piles. The length of four piles is 105.5 meters. , The pile diameter is 4.2 meters, and the pile sinking depth is 87.1 meters. It is the jacket foundation of the booster station with the heaviest weight, the largest root opening, and the longest engineering pile length for offshore wind power in China. Model requirements are high, and manufacturing, transportation and construction are difficult.

Source: Energy China

7. All 89 wind turbines of the world's largest lakeshang wind farm have been installed

On July 27, the last wind turbine of the world's largest wind farm built on a freshwater lake was completed in the Netherlands Windpark Fryslân offshore wind farm.

The Fryslan freshwater wind farm adopts a unique hexagonal layout with a total capacity of 382.7 MW. The IJsselmeer where the wind farm is located is about 6 kilometers from the coast of Friesland in the Netherlands, with a total area of 34 square kilometers. It is the world's largest built-in site. Wind farm on the lake. The project plans to go into full production in the third quarter of this year. After full production, it can reduce 800,000 tons of carbon dioxide emissions each year, and the annual power generation capacity is about 1.5 TWh, accounting for about 1.2% of the electricity consumption in the Netherlands, which is equivalent to the electricity consumption of about 500,000 households.

Source: Wind Energy Expert Committee CWEA

8. The first domestic 100-meter-class ultra-long carbon-glass hybrid blade was successfully rolled off the production line

On July 29, Mingyang Intelligent MySE11-99A1 blades were successfully rolled off the production base in Shanwei, Guangdong. This is the first domestic 11MW ultra-large offshore blade developed, designed and produced by Mingyang Intelligent. The blade length is 99 meters, and the diameter of the wind wheel is 203 meters. It will be applied to the MySE11MW platform. It is suitable for Category I wind area. It has excellent anti-typhoon genes and can withstand a maximum instantaneous wind speed of 70m/s. The main beam of the blade adopts a new type of carbon-glass hybrid material, which combines the characteristics of high-strength, high-modulus, low-density and low-density of carbon fiber with high elongation and low cost of glass fiber. Barriers, the successful application of carbon-glass mixed materials, greatly reduced the weight of the impeller system and the load of the whole machine system, and found the best fit for weight and cost.

The MySE11-99A1 blade adopts advanced airfoil family and has excellent aerodynamic performance. It can not only improve the structural design efficiency of the blade, reduce the weight of the blade, but also effectively balance the blade load and reduce aerodynamic noise while ensuring the power generation. MySE11- The 99A1 leaf profile is equipped with a self-developed carbon-glass hybrid composite lightning protection system, which has been tested and verified in the laboratory according to the IEC61400-24 2019 standard.

As the first 100-meter-class ultra-long carbon-glass hybrid blade in China, it combines ultra-long blade technology, carbon-glass hybrid material technology, advanced aerodynamic kits, and carbon fiber blade lightning protection technology, taking into account power generation efficiency, reliability and cost advantages. Provide strong guarantee and support for high-quality and reliable operation of the unit throughout its life cycle.

Source: Mingyang Intelligent

9. The latest research: vertical axis wind turbines may become the main force of offshore wind power in the future

A recent study from Oxford Brookes University in the United Kingdom showed that in large offshore wind farms, vertical axis wind turbines (VAWT) are more efficient than today's mainstream horizontal axis wind turbines.

Researchers said that the use of vertical-axis fans at sea will effectively solve the current wind farms that use horizontal-axis fans, and the wake effects of front-exhaust fans on rear-exhaust fans. Generally speaking, the front exhaust fan can use about 50% of the wind energy, while the rear exhaust fan can only use 25% to 30%.

Source: European offshore wind power

10. Siemens Gamesa announced that it will achieve 100% recycling of wind turbines in 2040

Recently, Siemens Gamesa announced that its wind turbines will be 100% recyclable by 2040, and the blades will be fully recyclable by 2030, and promised to achieve net zero emissions 10 years in advance (2040), including emissions from its supply chain.

Siemens Gamesa set this net-zero goal in its sustainable development vision strategy launched on July 21, including redesigning all its wind turbines to ensure that the wind turbines sold by 2040 are 100% recyclable. Put fully recyclable blades on the market by 2030.

Source: Siemens Gamesa