Shaoyang's Longhui County Launches China's First Township-Level Disaster-Resilient "Wind-Solar-Hydro-Storage" Microgrid

On November 7, construction began on China's first township-level disaster-resilient smart microgrid that integrates wind power, photovoltaics, small hydropower, and energy storage, in Matangshan Township of Longhui County in Shaoyang, Hunan Province.

The project aims to build China's first township-level disaster-resistant demonstration microgrid that integrates wind, solar, hydro, and energy storage in a flexible and coordinated manner. It is designed to improve power-supply reliability in remote, high-altitude mountainous areas, with a core target of enabling seven days of islanded operation and three days of power supply for critical loads.

Matangshan Township lies deep in the Xuefeng Mountains at an average elevation of 1,200 meters. Located at the far end of the power grid, it has long faced pronounced challenges in power-supply reliability and power quality. To address these issues, State Grid Hunan Electric Power Co., Ltd. has proposed an innovative disaster-resilient terminal-supply smart microgrid solution that makes use of local wind, solar, hydro and energy storage resources in a flexible and interactive manner.

The project's greatest innovation is the use of adaptive grid-forming technology for new energy and storage, together with coordinated dispatch and control technology for distribution and microgrids, creating a flexible interaction system among wind, solar, hydro, and energy storage. In the event that extreme disasters disrupt the main grid, the microgrid can seamlessly switch to islanded operation, allowing the entire township to run independently for up to seven days in spring, summer, and autumn, and ensuring three days of power supply for critical loads in winter. This will significantly enhance regional power-supply resilience and the ability to integrate clean energy.