[Securing a large order of 6.3GWh, Samsung aims to reclaim the throne of energy storage from China!] NextEra Energy, the largest power company in the United States, has signed a large-scale energy storage system supply contract with Samsung SDI in South Korea. It is reported that the contract size reaches 6.3GWh, with a contract value of up to one trillion Korean won (about 5.27 billion yuan), which is considered the largest order in South Korea's history by South Korean media. The supplied product is "Samsung Battery Box" (SBB) 1.5, a 20-foot container energy storage system with a capacity of 5.26MWh. Compared with existing products, its energy density has been increased by 37%. It uses NCA batteries (refers to ternary lithium batteries with ternary materials of NiCoAl), which are claimed to store 20-30% more energy than lithium iron phosphate batteries.