The 500 kV E’huang Substation and related line upgrade project in Guangdong, known as the " E’huang Series Project," has recently been commissioned.
Source: China Electric Power News
The 500 kV E’huang Substation and related line upgrade project in Guangdong, known as the " E’huang Series Project," has recently been commissioned. This marks the launch of China’s largest offshore wind power integration project. The substation consolidates energy from six massive offshore wind farms in western Guangdong, as well as two conventional coal-fired power plants. Currently, the project has a connected capacity of 6.95 million kilowatts, with plans to increase this to 10.92 million kilowatts by 2026—close to half the installed capacity of the Three Gorges Dam. The project is expected to deliver more than 30 billion kWh of electricity annually to the Guangdong-Hong Kong-Macau Greater Bay Area.
Yangjiang, the first city in Guangdong to exceed 20 million kilowatts in total power generation capacity, exports much of this power to the Greater Bay Area. The E’huang Series Project includes five key initiatives across the cities of Yangjiang, Yunfu, Maoming, Foshan, and Jiangmen. With a total investment of over 10 billion yuan, the project will see the construction of two substations and the addition of more than 1,000 kilometers of new transmission lines.
Jiang Tuo, Director of the Power Dispatch and Control Center at Southern Power Grid, explained that renewable energy generation, due to its inherent randomness, intermittency, and volatility, cannot provide stable power by itself. However, by integrating renewable energy with conventional power sources, the stability of the latter helps compensate for the fluctuations of renewable generation, ensuring a reliable and stable power supply. There are three primary models for combining renewable and conventional energy: renewable with thermal power, renewable with nuclear power, and renewable with hydroelectric power.
Liu Junlei, Strategic Planning Manager at Guangdong Power Grid, Southern Power Grid, said, “By using a ‘wind-thermal integration’ approach, we’ve achieved a multi-energy system that combines offshore wind with thermal power, maximizing the use of offshore wind energy and ensuring its effective integration.”
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