Recently, the 195.5MW solar power station Hickory Park invested and constructed by German power giant RWE Renewables in Georgia, USA, was officially put into use.
SMA has deployed a 40MW/80MWh DC-coupled solar energy + energy storage system for the power station, so that the power of the solar power station can be flexibly dispatched. When the solar power generation exceeds the allowable range of the grid connection, the battery energy storage system directly stores the power, and when the grid can accept the power , output it to the grid.
Different from the AC-Coupling AC-coupling scheme in which the photovoltaic system and the energy storage system operate independently of each other, the DC-Coupling DC-coupling scheme can effectively integrate the solar power generation system and the energy storage battery through the photovoltaic inverter and the DC-coupled converter. , improve the power generation efficiency and reduce the system cost.
"This is RWE's first solar power project in Georgia and the largest solar-plus-storage project to date in the United States," RWE Renewables said when construction began.
Although this is an early example of hybrid deployment of energy, in the future, tens of gigawatts of hybrid energy projects will be deployed in the United States, and the deployment of DC-coupled solar + storage projects is expected to become more common. "
