Sektör Trendleri

Recently, the National Energy Administration announced the list of the first batch of pilot cities for improving the construction capacity of new power systems in China, with 10 cities selected nationwide, including Zhangjiakou, which is the only city in Hebei Province to be selected. According to the plan, by 2030, the total installed capacity of renewable energy in Zhangjiakou will reach 86 million kilowatts, and a demonstration model with the core connotation of "low-carbon random coupling power source+strong and flexible smart grid+diverse collaborative interactive load+diversified shared energy storage+full process digital intelligence" will be basically built, helping to create a national new energy industry highland.

Relying on the advantages of pilot projects to accelerate the green transformation of energy

As the only national renewable energy demonstration zone approved by the State Council and a core city of the Beijing Tianjin Hebei computing hub, Zhangjiakou is taking the opportunity of the comprehensive pilot project of the new power system construction to accelerate the construction of a clean, low-carbon, safe and efficient energy system. This pilot application is under the unified leadership of the Municipal Party Committee and Municipal Government, and will be implemented by Zhangjiakou Power Supply Company. Focusing on the core goal of "solving the problem of ultra-high proportion new energy transmission and consumption", relying on the three advantages of location, resource scenarios, and innovative foundation, and focusing on the two scenarios of "large-scale collection and transmission of new energy on the dam+coordinated high proportion on-site utilization of new energy in the source grid and load storage under the dam", we will make every effort to create a new power system demonstration zone to support the clean and low-carbon development of energy and electricity in the Beijing Tianjin Hebei region.

Diversified collaboration to overcome bottlenecks in the development of new energy

On the power side, Zhangjiakou has become the largest city in China for non hydro renewable energy. In the pilot construction, the city focuses on promoting the integrated demonstration project of wind and solar energy storage multi grid mode, renovating and expanding active support wind and solar energy storage projects on the basis of wind and solar energy storage and transmission projects, developing four types of active support equipment, and building the first 100% new energy collection system with a capacity of one million kilowatts supported by grid type equipment, solving problems such as difficulties in the consumption of new energy.

In terms of power grid construction, Zhangjiakou has initially built an AC-DC integrated backbone network with "AC as the main and DC as the auxiliary". New energy is collected and transmitted on a large scale through six channels, including Zhangxiong ultra-high voltage and Zhangbei flexible straight. During the pilot construction period, the focus will be on implementing the grid type flexible DC demonstration project, constructing the Zhangjiakou Hebei South DC project with a capacity of 800 kV and 10 million kW, supporting 18 million kW of new energy, comprehensively enhancing the ability to optimize the allocation of power grid resources, and providing technical demonstrations for the large-scale new energy transmission in Shagehuang. At the same time, through the construction of Huailai Modern Smart Distribution Network and other projects, new and renovated 10 kV lines and low-voltage substations will be built, and a coordinated planning system for source network load storage will be established to enhance the new energy carrying capacity of rural distribution networks.

On the load and consumption side, Zhangjiakou will achieve dual driving of green power supply and new energy consumption through the demonstration of "computing power electricity" synergy, and use hydrogen energy as a leading industry for green transformation to build a green hydrogen production base in the Beijing Tianjin Hebei region. Zhang Chengtang's hydrogen energy region has been selected as one of the first national pilot hydrogen energy regions, the Hongmeng Kangbao renewable energy hydrogen production project has completed the filing, and the construction of the Haitai New Energy hydrogen long-distance pipeline has started.

Innovation leads and escorts the upgrading of the new energy industry

Innovation driven is the core support for pilot construction. Zhangjiakou, relying on the national wind and solar energy storage and transmission demonstration project, has built the first real and large-scale new energy storage comprehensive empirical platform in China, equipped with facilities such as a 17 MW energy storage test and empirical field; Research on collaborative solutions for source load coordination in the end distribution network, and create a highly adaptable and easy to promote development paradigm for the distribution network; Improve the green electricity trading mechanism, expand the scale of cross provincial and cross regional green electricity trading, and by 2025, achieve independent energy storage entities to participate in electricity purchase and sale transactions with dual identities; Explore differentiated support policies such as "green power direct connection" and "integrated wind solar hydrogen storage", and establish a collaborative promotion mechanism of "government led, grid led, and social participation" to safeguard the pilot construction.

The relevant person in charge of State Grid Zhangjiakou Power Supply Company stated that the successful selection for this pilot project is due to Zhangjiakou's profound accumulation in the construction of new power systems. Zhangjiakou is continuously improving its six major capabilities, including new energy collection and transmission, system regulation, and on-site consumption, through pilot construction, providing replicable and promotable experience for the construction of new power systems nationwide, and helping to achieve the "dual carbon" goal.