China's largest tidal flat photovoltaic storage power station, based in Laizhou City of east China's Shandong Province, went into operation on Tuesday, marking one of the country's latest efforts to promote green energy transition.
According to its operator Huadian Laizhou Power Generation, nearly two million solar panels have been installed across 1,200 hectares of tidal flats under the Huadian Laizhou large-scale saline-alkali tidal flat photovoltaic storage integrated project.
The project is one of China's third batch of large-scale wind power and photovoltaic bases, with an installed capacity of 1,000 megawatts.
In addition to green power generation, the station will become capable of operating salt production too. As it is planned that brine will be filled into containers below the panels to produce salt.
"After the project is put into operation, it can generate 1.442 billion kWh of electricity per year, which can meet the annual electricity consumption demand of about 500,000 households. It can save 444,000 tons of standard coal per year," said Wang Gang, deputy chief engineer of Huadian Laizhou Power Generation.
Tidal flat photovoltaic energy storage power stations are usually built on sandy or silty belts on the coast of oceans and rivers with good sunshine conditions.
Take the natural conditions for the Huadian Laizhou saline-alkali tidal flat photovoltaic storage integrated project as an example. The annual average sunshine time here is more than 2,600 hours, with the average daily sunshine time standing at more than 7 hours per day, which can convert abundant solar energy resources into electricity.
In addition, due to the intermittent and unstable nature of photovoltaic power generation, the power station has also built a supporting energy storage system to store excess solar energy with the battery, so that it can be released when there is insufficient light or peak electricity demand at night.

China's largest tidal flat photovoltaic storage power station starts operation