Haishan Tidal Power Station

Haishan Tidal Power Station

The Haishan Tidal Power Station is a Zhejiang Provincial Cultural Heritage Site.

The Haishan Tidal Power Station is located in Haishan Township, Yuhuan County, dating back to the People's Republic of China era.

The Haishan Tidal Power Station is China’s only small-scale tidal power station featuring dual reservoirs, unidirectional flow, full-tide freshwater storage, energy storage power generation, and comprehensive aquaculture development in the reservoir area. Located on Maoyan Island in Haishan Township, Yuhuan County, Zhejiang Province, it is a serial-type power station, composed of hydraulic structures such as an upper reservoir, a lower reservoir, intake sluices, discharge sluices, control sluices, and the main powerhouse. Construction began in 1972. In 1988, it generated 250,000 kWh of electricity, with an average daily operation of 20.5 hours.

The Haishan Tidal Power Station is a serial-type facility located on Maoyan Island in Haishan Township, Yuhuan County, Zhejiang Province. It consists of an upper reservoir, a lower reservoir, intake sluices, discharge sluices, control sluices, and the main powerhouse. The upper reservoir has a capacity of 280,000 cubic meters, while the lower reservoir holds 58,700 cubic meters. It has an installed capacity of 2×75 kW and an annual power generation of 310,000 kWh. A high-voltage power line stretching 3.5 km and a low-voltage line of 7.1 km were installed. The station was completed in 1975, making it one of the earliest tidal power stations in China. The project mobilized 190,000 labor-days and required a total investment of 681,200 yuan. In 1988, it produced 250,000 kWh of electricity, operating an average of 20.5 hours per day.

Over the 30-plus years of operation, the power station has delivered significant social and economic benefits. The tidal power generation process includes pumping and storing freshwater, effectively conserving the island’s freshwater resources and ensuring the daily life and production water needs of residents. During dry seasons, the stored freshwater can supply the island’s residents for over 70 days, while also enabling over 1,000 acres of farmland to achieve stable yields despite drought or flood. Additionally, during typhoon seasons, the power station’s reservoir area serves as a shelter for local fishing boats.

On January 7, 2011, it was designated as part of the sixth batch of Zhejiang Provincial Cultural Heritage Sites.

Further Reading:

· Sixth Batch of Zhejiang Provincial Cultural Heritage Sites