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On December 27, 2023, the National Energy Administration and other departments jointly issued the Notice on Announcing the List of Rural Energy Revolution Pilot Counties (First Batch), confirming that 15 counties (cities, districts, banners) including Weichang Manchu and Mongolian Autonomous County will be included in the list of the first batch of rural energy revolution pilot counties. The successful selection of the paddock as a pilot county for the rural energy revolution is due to the rapid development of its clean energy industry in recent years.
Enclosure Red Pine Wind Farm (taken in July 2023). Photo by Zhang Dan
The cumulative installed capacity is 4,488,100 kilowatts - the clean energy industry has become the backbone of economic development
On January 5, Sanfuxingdi Village, Yudaokou Town, Weichang, "Colorful River" photovoltaic power station.
On the undulating hillside, rows of neatly arranged solar photovoltaic panels sparkle in the sun.
The "Qicaihe" photovoltaic power station, also known as the 300 MW animal husbandry and photovoltaic complementary photovoltaic power generation project of the State Power Investment Shenyuan Enclosure Yudaokou, is currently the first batch of new energy power stations in our province with the largest grid-connected capacity, the largest energy storage scale and the most complete supporting equipment.
The project was approved in 2021, with a total investment of about 1.8 billion yuan, a total area of about 8,250 acres, and a total installed capacity of 300 megawatts. On June 28, 2023, the first grid-connected power generation was realized, with a grid-connected capacity of 218 MW, and the full capacity was connected to the grid in November 2023.
"The project is expected to generate an average of 595 million kilowatt hours per year, save 180,000 tons of standard coal and reduce solid dust emissions by 120,000 tons per year, save conventional energy, and improve the local energy structure. Huang Qianfei, chairman of the project builder and Chengde Shennoh New Energy Technology Co., Ltd., said.
The "animal husbandry and photovoltaic complementation" mode of "power generation on photovoltaic panels and sheep grazing under photovoltaic panels" is a major feature of the "Colorful River" photovoltaic power station. In order to allow the sheep to move freely under the photovoltaic panels, the power station has erected a prefabricated PHC (prestressed high-strength concrete) pipe pile and a fixed steel support system with high strength, bending resistance and crack resistance.
"The lowest point of the photovoltaic module is 2.5 meters from the ground, the distance between the front and rear rows is 10.8 meters, and the recyclable zinc-aluminum-magnesium alloy material is used in a wide range to reduce pollution, safety and power generation efficiency. Huang Qianfei said.
Say goodbye to the dazzling solar panels in Sanfuxingdi Village, and enter the area of Nanshanzui Township, Datoushan Township, Pailou Township, and Xiahufang Township in the paddock, which is the world of windmills - on the rolling hills, there are white wind turbines, and the blades rotate with the wind.
The wind turbines in this area belong to the 300 MW wind farm project of China Resources Enclosure Yuanbaoshan. The electricity generated by the wind farm is finally connected to the Yudaokou 500 thousand volt substation and sent to Beijing, Tianjin and Hebei through the Hebei power grid.
In December 2022, Yuanbaoshan Wind Farm introduced two new energy condensers with stable voltage, which greatly improved the utilization efficiency of new energy installations.
"Problems such as excessive voltage fluctuations in the power grid, low short-circuit ratio of new energy stations, and insufficient moment of inertia support caused by the integration of new energy have always limited the transmission capacity of the power grid to new energy. The new energy condenser is the 'stabilizer' of the new energy weak transmission system, which has the advantages of good voltage support performance, strong overload capacity and high reliability. Wu Di, the builder of the new energy condenser and the electrical engineer of China Resources Power Beijing-Tianjin-Hebei New Energy Company, explained.
This is the first condenser expansion project of the existing new energy station in China, and it is also a new application of traditional condenser technology in the field of new energy. This is where the new energy condenser technology begins to be promoted in the paddock.
Since then, the total load factor of the three wind farms connected to the Yuanbaoshan Wind Farm, Shenxiandong Wind Farm and Xiangfeng Wind Farm, has increased from the lowest 40% to 70%, and the average annual power generation capacity can be increased by 80 million kWh.
The "Qicaihe" photovoltaic power station and the Yuanbaoshan wind farm are just two representative of the many clean energy projects in the paddock.
The enclosure site is located in the transition zone between the Inner Mongolia Plateau and the northern Hebei mountains, with an annual effective wind hour of 5,475 hours, an average annual sunshine hour of about 3,000 hours, wind energy and solar energy resources belong to the national second-class "very rich belt" area, with a total of about 9 million kilowatts of wind energy resources and a total of about 4 million kilowatts of photovoltaic energy resources.
In recent years, the paddock has tapped the development potential of clean energy and continuously promoted the transformation and upgrading of the energy industry.
Since the completion of the first wind power project in 2002, Hongsong Wind Farm, the paddock has built a total of 63 clean energy projects and has 23 clean energy enterprises, including 16 wind power enterprises and 7 photovoltaic enterprises, all of which are industrial enterprises above the designated size. 16 well-known enterprises such as Huaneng, China Resources and Guodian entered the paddock.
"The paddock is the earliest area to develop the clean energy industry in Chengde, the first batch of green energy demonstration counties in the country, and the installed capacity and power generation of clean energy account for 46.77% and 40.9% of Chengde City respectively, which is the largest county in Chengde City in terms of clean energy development, and the clean energy industry has become the backbone support for the economic development of the paddock. Ren Yong, deputy director of the Paddock Development and Reform Bureau, said.
By the end of 2023, the cumulative installed capacity of paddock clean energy will be 4,488,100 kilowatts, generating 9.1 billion kilowatt hours of electricity, and achieving an output value of 3.94 billion yuan.
Recently, in the all-vanadium flow battery testing workshop of Chengde Wai Vanadium Energy Storage Technology Co., Ltd., the paddock energy storage equipment manufacturing industrial park, technicians are testing the 1 MW all-vanadium flow battery module. Courtesy of Wen Jingsheng
Build a "giant charging treasure" - "1+N" energy storage industry system to extend the chain and supplement the chain
On January 6, the enclosure waist station town, the enclosure energy storage equipment manufacturing industrial park.
Chengde Wai Vanadium Energy Storage Technology Co., Ltd. megawatt-level module gigawatt-scale all-vanadium flow battery production line of the whole industry chain is under intense construction.
The project covers an area of about 25,000 square meters, including a scientific research center, an exhibition center, a stack production workshop, and a vanadium battery production workshop, and is expected to achieve the first phase of the battery production line put into operation this year.
The 128 kilowatt stack of Jiantou Vanadium Sheng brand produced by the company is the first stack of more than 100 kilowatts in China, and is the core component of the all-vanadium flow battery, and the first stack has been rolled off the assembly line in September 2023. All-vanadium flow batteries are safe and have a long service life, and can provide energy storage products and green power guarantee for chemical and other industries in areas with large peak-to-valley electricity price differences.
"Affected by factors such as energy storage scale, safety control, and flexible scheduling requirements, it is expected that new energy power generation enterprises will gradually shrink their self-built compulsory distribution and storage, and shared (independent) energy storage will emerge. Wen Jingsheng, deputy general manager of the company, said.
Energy storage products, popularly understood, are a "giant power bank", which is an important part of the clean energy industry chain. Wind power and photovoltaic power generation have strong randomness, and in order to ensure the stability of the power system, energy storage products are needed to help consume.
At present, the paddock is striving to build a "1+N" energy storage industry system of "energy storage equipment manufacturing characteristic industrial cluster" + "vanadium lithium battery, hydrogen energy storage, pumped storage", and cultivate and develop a 10 billion energy storage industry.
The paddock energy storage equipment manufacturing industrial park is an important platform for the development of the energy storage industry in the paddock.
The park covers an area of 76,552 square meters, with a construction area of 31,527 square meters, including the all-vanadium flow battery production and manufacturing project, and has gathered three energy storage equipment manufacturing projects with a total investment of nearly 1 billion yuan.
Among them, the Guodian Sinnoh intelligent energy storage integrated factory project was completed in June 2022 and put into operation that year, with an output value of 159 million yuan in 2023.
With a total investment of 500 million yuan and an area of more than 130 acres, the energy storage equipment manufacturing project of Haibo Sichuang started construction in October last year. The project plans to build three energy storage equipment manufacturing production lines with an annual capacity of 2 GWh in two shifts in phases, and is expected to be put into operation this year.
It is understood that Beijing Hipostron Technology Co., Ltd. is a provider of energy storage system solutions and technical services, ranking first in the list of energy storage system shipments in the domestic market in 2021 and 2022 among China's energy storage system integrators, and has participated in the supply of the first batch of demonstration energy storage projects in Shandong Province and the largest single energy storage power station in operation in Hebei Province, and has accumulated a large number of experience in energy storage equipment supply, commissioning and grid connection.
"With the help of technologies such as the Internet of Things, big data, intelligent control and intelligent sensing, we will fully automate the key production processes of energy storage equipment and help the transformation of the paddock energy storage equipment industry to intelligent manufacturing. Wen Zhixing, director of the company's key accounts, said.
The electrochemical energy storage industry, represented by the manufacturing of vanadium lithium battery products, is only one direction for the development of the energy storage industry system in the paddock. In addition, pumped storage and hydrogen energy storage projects are also advancing simultaneously.
The Weichang Miaogong Pumped Storage Power Station Project, with a planned total installed capacity of 1 million kilowatts, has completed the preparation of the first version of the pre-feasibility study report, and has been successfully included in the list of pumped storage project reserves in Hebei Province.
Pumped storage power stations can regulate peak and valley, frequency and phase regulation, and their operation is flexible, and the start and stop are fast, which can improve the power system's ability to accept renewable energy resources and resource utilization. After the project is put into operation, it is expected to save about 400,000 tons of standard coal per year, which is equivalent to reducing carbon dioxide emissions by about 1 million tons per year.
The two hydrogen energy storage projects in the paddock, Shanghai Hangrong Centralized Hydrogen Production and Daxigou Wind Power Hydrogen Production Project, will also make breakthroughs this year.
The Shanghai Hangrong centralized hydrogen production project is expected to be completed and put into operation in June 2024. The project is a hydrogen production station with a production scale of about 5,000 standard cubic meters per hour, equipped with two sets of hydrogen production equipment of 900 standard cubic meters per hour and two sets of hydrogen production equipment of 1,500 standard cubic meters per hour.
The Daxigou Wind Power Hydrogen Production Project will build a total of 10 MW water electrolysis hydrogen production system, and the project is expected to be put into operation within this year.
"After the two projects are put into operation, the local capacity of the paddock for clean electricity consumption will be greatly improved. The hydrogen production capacity of the paddock is expected to reach 7,000 standard cubic meters per hour, with an annual output of 5,400 tons of green hydrogen and an annual consumption of 270 million kWh of green electricity, laying the foundation for the paddock to build a leading green hydrogen production base in Beijing, Tianjin and Hebei. Ren Yong said.
CGNPC's 30 MW PV power plant at the Zhangjiawan Township in the paddock (taken in August 2023). Photo by Zhang Dan
Solve the problem of transportation - let clean electric energy be consumed near and far away
In accordance with the requirements of the Notice on Announcing the List of Rural Energy Revolution Pilot Counties (First Batch), the construction of rural energy revolution pilot counties will be based on accelerating the clean and low-carbon transformation of rural energy, helping to achieve rural revitalization, innovating the development and utilization mode of rural renewable energy according to local conditions, and exploring and promoting the improvement of energy security and clean substitution in rural areas.
When he saw this news, Huang Qianfei happened to plan to go to the paddock village to carry out the company's own clean heating pilot.
On December 31, 2023, Chengde Sinnoh New Energy Technology Co., Ltd. formulated and launched the "Pilot Program for Solving the Winter Heating Problem of Residents in Alpine Areas", which plans to solicit rural families in the paddock to participate in the pilot.
"Six pilot households form a group of residents, and we equip them with an air energy system free of charge, and install distributed photovoltaic panels and energy storage equipment, and then connect the system to the mains and distributed green electricity to continuously monitor the heating effect and energy consumption parameters. Huang Qianfei said.
The analysis of the scheme predicts that the cost of heating in the form of "air energy + municipal electricity" is about 25 yuan per square meter, while the cost of heating in the form of "air energy + green electricity" is about 20 yuan per square meter.
The company's clean heating pilot in the paddock is the result of the paddock's active cooperation with new energy companies to explore a new model of clean heating in the countryside in recent years.
The paddock has a large area and a large rural population, and there are still 1 million kilowatts of distributed wind and photovoltaic resources and 200,000 kilowatts of distributed photovoltaic resources on the roof. In accordance with the basic policy of "government promotion, village-by-village implementation, affordable for residents, and separate household charges", the paddock plan will gradually achieve a rural clean heating coverage rate of more than 50%.
In addition to the local consumption, a larger proportion of the green electricity in the paddock needs to be transmitted outward.
However, for a long time, due to insufficient capital investment and aging power grid, the construction of green power transmission channels in the paddock has lagged behind, which directly affects the safety of power supply and transmission and the normal delivery of clean energy.
Focusing on breaking the key constraints, this year's paddock will take the Chengde Pailou 500 thousand volt transmission and substation project as an important breakthrough point.
"The county has sent a special person to monitor the project, and through many times with the Provincial Energy Bureau and the Hebei Power Grid Company, the overall progress is 40 days ahead of the original plan, and it was originally planned to be completed by the end of 2024, and strive to be completed and put into use 4 months ahead of schedule. Ren Yong said.
At present, the paddock mainly relies on two transmission and substation stations for clean power transmission, with a total transmission capacity of 2.62 million kilowatts. After the Chengde Pailou 500 thousand volt transmission and substation is put into operation, the new transmission capacity will be 2.4 million kilowatts, and the transmission capacity will almost double.
Although many new energy projects in the paddock have a high starting point, the overall endogenous power of scientific and technological innovation in the county is insufficient, which still restricts the high-quality development of the local clean energy industry.
To this end, the paddock has worked hard to introduce advanced technology and personnel training to enhance innovation in the field of new energy.
Not long ago, Chengde Shenyuan Solar Power Generation Co., Ltd. and other 8 paddock enterprises reached a technical cooperation intention with Hebei University of Technology to introduce advanced technologies in advanced energy storage, virtual power plants, green power direct supply, etc.;
According to the clean energy industry development goals set by the paddock, by 2025, the installed capacity of clean energy power will exceed 9 million kilowatts, including 6.4 million kilowatts of wind power generation and 2.6 million kilowatts of photovoltaic power generation, hydrogen energy production capacity of 7,000 standard cubic meters per hour, annual hydrogen production capacity of 5,400 tons, and energy storage capacity of 610 megawatts/1,100 megawatt hours.
Seizing the opportunity of the pilot county, the new energy picture of the paddock is accelerating the development. (Hebei Daily reporter Li Dongyun)
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How to do the pilot lock three aspects
On December 27, 2023, Weichang Manchu Mongolian Autonomous County was selected into the first batch of pilot counties for rural energy revolution.
In recent years, the paddock has made many explorations and practices in promoting the high-quality development of rural clean energy.
Since 2017, a total of 5 centralized photovoltaic poverty alleviation power station projects have been built in the paddock, with a total installed capacity of 100,000 kilowatts, and 155 village-level photovoltaic poverty alleviation power stations with a total installed capacity of 48,400 kilowatts have been built in the paddock, driving 7,820 poverty alleviation households in 159 poor villages to steadily increase their income by more than 3,000 yuan.
This year, the paddock will focus on three aspects of rural energy supply, consumption, and technology.
Promote the revolution of rural energy supply and establish a diversified energy supply system for renewable energy.
Actively carry out the development of photovoltaic and wind power generation on the idle land of rural collectives and the roofs of rural households, and strive to be listed as a demonstration county of distributed photovoltaic and distributed wind power in the province.
Combined with the design and operation of rural energy stations, focus on promoting clean heating in paddock villages, according to the level of urban and rural economic development, the affordability of the masses, the status of resources and other factors, in accordance with the basic policy of "government promotion, implementation by village, residents can afford, and separate household charges", and gradually achieve a rural clean heating coverage rate of more than 50%.
Promote the revolution of rural energy consumption and realize clean and efficient energy use at the county level.
Efforts should be made to make up for the shortcomings of the development of power grids in rural areas, vigorously promote the consolidation and upgrading of power grids in rural areas, and plan and implement projects such as capacity expansion and transformation of substations in rural areas and surrounding areas. Coordinate with power grid companies to transform rural power grids, improve the power supply capacity of rural power grids, meet the needs of new energy into villages and households, and meet the output needs of rural energy revolution to feed back to industry. Improve the flexible and open access capacity, flexible control ability and anti-disturbance ability of the rural distribution network, and actively serve the diversified load access needs of distributed power generation, energy storage, electric vehicle charging, electric heating, etc.
Promote the integrated development of clean energy and rural characteristic industries. Focusing on the construction of a new pattern of "integrated development of clean energy and rural characteristic industries", relying on characteristic industrial platforms such as China's potato industry demonstration base and the capital's agricultural product emergency supply base, we will make full use of local clean energy resources to achieve local production, local development and local use, improve local consumption capacity, and promote the green and low-carbon development of county-level characteristic and advantageous industries.
Promote the revolution of rural energy technology and improve the level of smart energy use in rural areas.
Promote the application of multi-energy complementary and integrated energy technologies. Integrate a variety of clean energy such as green electricity, geothermal energy, and biomass energy that can be obtained by service objects according to local conditions, improve the level of informatization, digitalization and intelligence of the power grid, realize the coordinated planning and optimized operation of multiple energy subsystems, and build a pilot demonstration of multi-energy complementary comprehensive energy characteristic towns in combination with rural revitalization.
Support pilot applications such as smart microgrids, various new energy storage, environmental protection facilities for small rural domestic waste, and intelligent street lamps with integrated optical charging and storage. (Text/Hebei Daily reporter Li Dongyun)