Since the beginning of this year, new wind power and solar energy projects have been launched across the country, and the energy storage market has exploded. As an emerging energy storage station operation model, shared energy storage has received more and more attention. A large number of shared energy storage stations have been built in Guizhou, Zhejiang, Jiangsu and other places. In Yangkou Town, Nantong City, Jiangsu Province, next to the wind power and photovoltaic project are rows of shared energy storage power stations composed of white energy storage cabins. The person in charge said that this project was connected to the grid on November 29, with an investment of more than 790 million yuan. The excess electricity generated by multiple surrounding wind power and photovoltaic power stations can be stored to provide power to residential areas or industrial enterprises. Shang Sen, the person in charge of the operation and management of a shared energy storage power station in Nantong, Jiangsu: In terms of scale, it is currently the largest large-scale shared energy storage power station in East China. Our configuration is 200,000 kilowatts and 400,000 kilowatt hours. This means that it can charge 200,000 kilowatt-hours of electricity in one hour, and it can discharge the corresponding amount of electricity when it is fully charged. Shared energy storage stations not only connect to wind power and photovoltaic power stations to store excess power generation during peak power generation periods, but also connect to power-consuming enterprises to provide electric energy to enterprises during peak power consumption periods. Pan Zaibin, director of electrical appliances in the engineering department of a company in Changxing, Zhejiang: Shared energy storage stations have greatly reduced our electricity costs. At present, we only use about 20% to 25%. Wind power and photovoltaic power generation are random and intermittent, and many provinces require power stations to be equipped with energy storage systems for 1 to 2 hours. Industry insiders said that the cost of building energy storage by yourself is high, charging and discharging only once a day, and the use efficiency is low. Shared energy storage power stations are large in scale and connect upstream power stations and downstream power consuming enterprises. They can be charged and discharged multiple times a day, improving usage efficiency. You can also participate in power grid dispatching and earn price differences through peak shaving and valley filling, with low overall costs. By leasing shared energy storage, construction costs of new energy power stations have generally been reduced by more than 10%. Shared energy storage has become very popular and ushered in a construction peak.

It is reported that on December 7, with the smooth connection of my country's first batch of Shagehuang large-scale wind power and photovoltaic base projects to the grid, the new energy installed capacity of the Northwest Power Grid exceeded 200 million kilowatts, accounting for nearly 50% of the total installed capacity of the Northwest Power Grid. It has doubled again in three years. Now, Northwest New Energy is accelerating its move towards the main power source, further promoting the construction of Northwest's new power system. In recent years, the development of new energy in the northwest region has accelerated, and the proportion and growth rate of new energy installed capacity have remained leading. In terms of improving the ability to understand system characteristics, we vigorously promote the actual measurement and modeling of new energy stations, carry out full electromagnetic transient digital simulation analysis of large power grids suitable for the high proportion of new energy in northwest China, and greatly improve the delivery end of high proportion of new energy. Large power grid system characteristics cognition and simulation analysis level. In terms of improving the active support capabilities of new energy, the country's first initiative to optimize the transient performance of new energy has been carried out. The scale of UHV DC near-field transformation in Shaanxi, Wuhan and Qingyu has exceeded 15 million kilowatts, and the cumulative output of new energy has increased by 5.2 million kilowatts. In terms of improving the level of lean control, the company pioneered data-driven new energy centralized transmission cascade section typical method extraction and quota customization technology, which has been deeply applied in areas such as the Xinjiang-Northwest Network Channel, and has increased the transmission capacity of the network channel by 1.6 million kilowatts. The channel utilization rate is about 8 percentage points. In terms of improving scientific and technological innovation capabilities, it took the lead for the first time in the State Grid Corporation of China's new solar energy system science and technology research action plan, innovative research on improving the transient support capacity of high-proportion new energy at the transmission end, and overall planning to solve the temporary problems of high-proportion new energy and ultra-high voltage DC coupling systems. Stability issues. At present, Northwest Power Grid has achieved "three improvements" in new energy power generation, utilization rate and power generation proportion for seven consecutive years, and key indicators such as installed capacity penetration rate, power penetration rate and power generation proportion have overall reached "three leading" levels.

On December 2, the four highly conspicuous "gas piers" located at Lu'anzhou Wharf in Changzhou were fully debugged, marking that China's first ultra-large-scale "photovoltaic + gas film" photovoltaic energy power station project will officially receive power. For a long time, large amounts of dust and exhaust gas have been "provoked" during the loading and unloading operations, storage and transportation of coal, sand and gravel and other bulk materials transported at the port. In March this year, the Lu'anzhou Terminal air film greenhouse came into being. It is the first bulk cargo yard in the Yangtze River Basin to use air film technology to achieve fully enclosed operations, and is used to comprehensively improve the ecological environment of the port terminal. These four greenhouses are located in the first and second phase bulk cargo yards of Lu'anzhou Port. They look like four giant loaves, with a total projected area of over 270,000 square meters, and can store 1.5 million tons of ore and other bulk cargoes at a time. The annual power generation can reach 11.56 million kilowatt hours, and it is expected to reduce 9,500 tons of carbon dioxide emissions a year. Not long ago, the giant "Qidundun" was covered with a "blue quilt". These blue blocks sparkling in the sun are distributed photovoltaic power generation solar panels, which can generate 6 million kilowatt hours for the terminal's own use, accounting for 10% of the total annual power generation. 52%, and the remaining power can be sent to the power grid to earn profits. Now that "Qidundun" has officially entered the 2.0 era, it can not only effectively avoid dust problems in open-air operations, but also achieve significant energy saving and emission reduction benefits through photovoltaic power generation. It is the first in the country to create a new application scenario for distributed solar energy power generation, demonstrating the "hard core" responsibility of green wisdom.

Recently, Azerbaijan’s first 308MWp large-scale new energy solar energy power station was officially connected to the grid to generate electricity. After the power station is connected to the grid, its annual power generation capacity will reach 500 million kilowatts, which can meet the electricity needs of 110,000 households. On the occasion of the 10th anniversary of the “One Belt, One Road” initiative, the successful completion of this project is an important milestone in green energy cooperation between China and Azerbaijan, injecting strong impetus into local green and low-carbon development. Azerbaijan is one of the first countries to support the "Belt and Road" initiative and has cooperated with China in many fields such as transportation, logistics, and infrastructure. In the context of global carbon neutrality, Azerbaijan's Ministry of Energy expects to increase the proportion of renewable energy installed capacity to 30% by 2030, and begins to actively seek cooperation with Chinese new energy companies to accelerate economic diversification and reduce oil and natural gas dependence. As Azerbaijan's first large-scale renewable energy power station, the project is located in Gobustan District, about 60 kilometers southwest of Baku, the capital of Azerbaijan, covering an area of approximately 5.5 million square meters. The power station adopts an innovative 8.85MW large sub-array design to further increase power generation, reduce investment costs, and ensure safe and efficient power generation. Azerbaijani President Ilham Aliyev said at the grid connection ceremony: "Last year we participated in the groundbreaking ceremony of this photovoltaic power plant. Today, we are very proud to see that in a short period of time, Gobustan "It's a remarkable achievement to turn this open area into a source of green energy." Over the past decade, Chinese companies have used products, technologies, and services to inject vitality into the energy transformation of many countries and promote local economic growth. As a leading company in renewable energy in China, Sungrow has also contributed to the Belt and Road Initiative by providing cutting-edge renewable energy solutions and services. It is believed that more and more renewable energy projects will be implemented under this initiative in the future, and global carbon neutrality will be on the fast track.

Thanks to PV systems and battery storage, millions of households in Europe are already partially self-sufficient. A German-Swiss research group has calculated the potential for European residential buildings to achieve grid independence with solar-plus-storage solutions. The team aimed to determine whether such homes could abandon the grid completely. They based their calculations on a database that combined detailed geographic data about European buildings and households with local climate and economic factors. Using advanced techniques to simplify the process on high-performance computers, they designed cost-optimized, self-sustaining energy systems for 4,000 representative single-family homes. These results were then applied to the 41 million single-family homes they analyzed using neural networks. “Under today’s conditions, 53% of the 41 million buildings are technically capable of powering themselves through the use of local rooftop PV systems alone, independent of external infrastructure, and this share could rise to 75% by 2050 due to improved technologies,” said researcher Russell McKenna. “If we now assume that building owners would be willing to invest up to 50% more than would be necessary for a comparable energy system with a grid connection, then up to two million single-family homes could leave the grid by 2050.” Energy self-sufficient residential buildings show great potential, particularly in regions with stable weather patterns like Spain and areas with high electricity costs such as Germany. Electrolysis could also be a key component in cost-optimized systems. “Our results show that a successful, cost-optimal and self-sufficient energy supply system for buildings in Central Europe will consist of photovoltaics for electricity generation as well as a combination of short-term battery storage and a long-term battery storage, seasonal hydrogen storage system,” said researcher Jann Weinand. The key question is whether widespread adoption of fully self-sufficient, off-grid supply systems aligns with an efficient energy system. Single-family homes can contribute significantly to stabilizing a renewable-based energy system through load management, on-demand solar power injection, and provision of balancing services.

Recently, Anhui's largest solar system passenger car parking lot was connected to the grid to generate electricity, with an installed capacity of 11MW. The project is located at the southern end of Susong Road in Hefei Economic Development Zone, covering an area of 130 acres, equivalent to the size of 13 football fields, and can accommodate more than 3,000 cars at a time. The solar energy system parking lot is designed with an optimal inclination angle of 3°, taking into account multiple functional values such as efficient power generation on the board, convenient parking under the board, sunshade, rain protection, and dust protection. The project is expected to generate more than 12 million kilowatt-hours of electricity annually, equivalently reducing carbon dioxide emissions by 12,000 tons. Photovoltaic parking lots are one of the typical green energy usage scenarios in zero-carbon solutions in the automotive industry. The completion and use of this project has achieved a win-win situation between green energy usage and efficient utilization of the park.

Several European solar associations have published an open letter calling on the EU to develop an industry strategy for the European solar photovoltaic industry and oppose the introduction of tariffs and trade barriers. To address the sharp decline in solar PV module prices in Europe, the signatories to the open letter propose four approaches that can be implemented in the short term. First, the signatories ask EU member states and representatives to call on the European Commission to further adjust the EU state aid framework to allow member states to support the operating expenses of factories. Secondly, the signatories demand that the EU quickly adopts the EU Net Zero Law and establishes a concrete flexible tendering system in consumer markets in the coming months. If this is done, Article 20 of the Net Zero Sector Act should be adapted to allow member states to hold a limited number of specific tenders of growing capacity to reflect Europe’s growing capacity needs. The signatories added that any pre-qualification criteria for solar PV must be avoided, which could adversely affect the speed and cost-effectiveness of Europe's energy transition and solar development. Furthermore, the signatories ask EU Member States and representatives to call on the European Commission to develop an EU-wide financial support framework specifically for the solar PV supply chain, building on the state aid framework. This framework could be linked to innovation funds and existing national support funds, mechanisms or instruments. Finally, the signatories call on the EU to use resilience and recovery funds wherever possible to support solar PV production. In August this year, Norwegian Crystals, a silicon ingot manufacturer, filed for bankruptcy. NorSun, also a Norwegian solar silicon ingot producer, also announced that due to the influx of "unusually low-priced" Chinese solar modules in September, the company decided to temporarily suspend production and lay off employees. In addition to calling on the EU to develop measures for the solar industry, the signatories also oppose tariffs and market barriers that could jeopardize Europe's growing PV market and existing PV ecosystem. "It would also jeopardize political development goals and deny consumers the economies of scale that make solar PV most attractive for decentralized consumer markets and electricity market supplies," the signatories wrote. one of the energy generation technologies. We ask member states and representatives to reject such proposals.”

On August 23, the largest ground-based centralized solar panel project in Jiangsu Province - CNNC Huineng's Jiangsu Sihongdong Magnetic 700,000-kilowatt ecological energy integration project, Meihua District, was connected to the grid to generate electricity, marking a major achievement for Sihong County's large-scale solar energy system power generation base. The breakthrough is of positive significance for building a new energy system in Jiangsu and coordinating the integrated development of wind, solar, and storage. The project has an installed capacity of 700,000 kilowatts. After the full capacity is connected to the grid for power generation, it is expected to provide about 845 million kilowatt hours of green energy to the society every year, save more than 250,000 tons of standard coal, reduce carbon dioxide emissions by nearly 630,000 tons, and continue to contribute to the local economy. Injecting green kinetic energy into development and actively assisting the construction of the local ecological environment can effectively reduce environmental pollution and have good economic and social benefits. On August 16, the 80-MW Jiezun Gongdao Fishing and Photovoltaic Complementary Project in Gongdao Town, Hanjiang District was successfully connected to the grid to generate electricity, becoming the first market-oriented photovoltaic project connected to the grid in Jiangsu. The project covers an area of about 1,300 acres, has installed about 145,000 solar panels, and is equipped with a 16 MWh energy storage system power station. It adopts the "fishing and photovoltaic complementary" model to make full use of land resources and achieve an organic combination of breeding, power generation and energy storage. This photovoltaic project is one of the first batch of market-oriented photovoltaic projects in the province in 2021. "This project is equipped with a 16 MWh energy storage power station based on 10% of the installed photovoltaic capacity, which is equivalent to a 'power bank' with a capacity of 16,000 kWh, which can reduce the impact of large power fluctuations of centralized photovoltaics on the power grid. ." Yang Xiaonan, a full-time employee of the Development Department of State Grid Yangzhou Power Supply Company, said that at the same time, the energy storage power station built in the project can promptly store excess power when new energy power generation is excessive, and connect the stored power to the grid when the power load is high. Improve the problem of new energy power generation and consumption.