On the 24th, the Qingyu DC Project, the world's first major energy channel mainly focused on the transmission of new energy, delivered a total of 2 billion kWh of "green power" to Henan, which is equivalent to reducing coal consumption by 900,000 tons.
It is understood that the low-end DC system of the project has been in live operation for 72 days.
The Qingyu DC project starts in Hainan Tibetan Autonomous Prefecture in Qinghai Province and ends in Zhumadian City, Henan Province. It is an important channel for the Central China Power Grid to absorb clean energy outside the region. The Central China Branch of State Grid closely followed the commissioning and commissioning of Qingyu DC, and took multiple measures to increase the utilization rate of cross-regional DC channels to meet the growing demand for clean energy in the region.
The project established Qingyu DC’s trading organization principle of “mainly consumption in Henan and taking into account the power purchase demand of other regions in Central China”, laying a solid foundation for increasing the utilization rate of cross-regional DC channels. From July to August, Hubei and Jiangxi’s economic Henan DC purchased 76 million kWh of electricity. On September 1, Northwest Clean Energy was sent to the Hunan Power Grid via ±800 kV Qingyu UHV DC for the first time. At present, the Qingyu DC project has achieved full coverage of the four provinces in Central China.
2 billion kilowatt-hours of clean energy is equivalent to reducing coal consumption by 900,000 tons and reducing carbon dioxide by 1.48 million tons. It plays an active role in promoting air pollution prevention, energy transformation and development in Central China, and ensuring safe and reliable power supply in Central China. Implementation of the Yellow River Basin ecological protection and high-quality development strategy.
In order to ensure the stable and reliable delivery of the abundant clean energy in Qinghai, State Grid Qinghai Electric Power Company continues to strengthen engineering operation and maintenance management, improve the DC system operation and maintenance guarantee capability and equipment health level, and continue to carry out adjustments and new energy collection stations to the grid. Construction, acceptance and commissioning of supporting projects such as access.
At the same time, orderly promote the acceptance and commissioning of the transmission and transformation projects from Hongqi, Shazhuyu and other photovoltaic collection stations to Qingnan converter station, and directly send photovoltaics from Hainan area to Qingnan converter station to provide a steady stream of new energy from Qingyu DC. Electrical energy.
At present, the first ±800 kV high-end converter transformer of the UHV Qingnan Converter Station has been transported to the station to start on-site installation. The engineering bipolar high-end DC system has entered an important stage of the installation of main electrical equipment, and various construction work is proceeding in an intense and orderly manner. . The project plans to put the ±800 kV bipolar high-end DC system into operation within the year. By then, the project's transmission capacity will be doubled, and 40 billion kilowatt-hours of "green electricity" can be delivered to Henan every year.
Source: Chemical Network
