The conventional lithium-ion batteries store large amounts of energy in a small space.... If regulatory approvals are obtained, it will build the underground infrastructure and the ESS. Posh Electric specialises in developing ESS that run on sodium-ion batteries.... With the grant, the company will study the viability of this newer type of battery for energy storage in Singapore. Sodium is 1, 000 times more abundant on earth compared with lithium, which has to be mined in specific areas, such