Ningdong- Shandong ±660 kV DC transmission demonstration project starts from Yinchuan East Converter Station in Ningxia to the east and Qingdao Converter Station in the east to Ningxia, Shaanxi, Shanxi, Hebei, and Shandong. The rated transmission capacity is 4 million kilowatts. The total investment is nearly 10.4 billion yuan.

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