The Huadian Haijing Salt-PV Complementary Power Station, built on a 3294 acre (1,333 hectare) salt field with a total capacity of 1 GW, was recently connected to the grid in Tianjin, China. It is expected to generate around 1,500 GWh of solar energy per year, enough to meet the electricity needs of 1.5 million homes. Its operation is also expected to reduce carbon dioxide emissions by 1.25 million tons annually.
Once commissioned, the project will become the largest salt PV backup power plant in the world, contributing to both power improvement and greening of the power grid in North China. More importantly, this project examines a “three-in-one” composite industry model combining solar power generation, salt production through water evaporation and subsea aquaculture to push the modern development and innovation of traditional industries in China, and open a new channel of solar applications right after the current one widespread agricultural PV.

Due to the unique environment of this website, all electronic devices used must meet strict requirements. The project installed 2,190 units of Sungrow’s SG320HX high-power string inverter. Reaching the trend level of 300kW+, these inverters are compatible with a range of module technologies such as: B. bifacial modules. They also help reduce Balance of System (BOS) costs while providing greater security protection, more reliable power generation, and faster service response.
In addition to the above benefits, these SG320HX inverters are equipped with the industry’s highest level of protection IP66 and C5 anti-corrosion capacity, making them ideal for the high humidity and high corrosion environment of salt fields near the sea.
In addition, these inverters are equipped with Sungrow’s unique 24-hour AC/DC insulation monitoring function, which monitors impedance in real time, quickly identifies damaged cables and reduces the risk of electric shock and fire due to cable erosion.