In the race for new energy storage systems NaS batteries (sodium-sulphur chemistry) have made an important step forward. NGK Insulators, the Japanese energy and automotive solutions company, said it received an order for NaS batteries for storing electric energy from MVM Balance, a subsidiary of the Hungarian state-owned energy company MVM Group.
This is the third order for NaS batteries in Hungary, following an order for a demonstration project at the national Centre for Energy Research and an order for use in renewable energy by consumers. NaS batteries will be used for a 4.350kWh storage battery demonstration project for stabilising the electricity grid. The project will verify the use of grid storage batteries for storing energy during times of surplus and discharging it when there is a shortage.
The project involves three container-type battery housings, and the storage is expected to begin operations in May 2025. The MVM Group has adopted a policy of full-scale advancement of storage battery installation as a measure for adjusting renewable energy supply and demand. With this demonstration project, the MVM Group plans to examine the performance standard for grid storage batteries to be introduced in the future.
NaS batteries from NGK Insulators have so far been installed in over 250 locations around the world and they have a stable operational track record of more than 20 years, according to NGK. The German company BASF Stationary Energy Storage and NGK Insulators have recently introduced an advanced container-type NaS battery energy storage system ‘NaS MODEL L24’. Customer deliveries of the latest product is set to commence immediately in this quarter. The system is installed in a standard 20ft container and the current largest system at one site is 50MW with 300MWh capacity.
Photo: NGK Insulators/A NaS battery storage Model L24
