South Korean battery producer Samsung SDI has agreed to supply its battery products to German battery energy storage systems (BESS) manufacturer Tesvolt, with the potential for further negotiations for possible additional supply.
Samsung SDI will begin with supplying its battery box 1.0 to Tesvolt from this month onwards, before switching the model to its upgraded battery box 1.5 in April-June 2026, said Samsung SDI on 11 June. Details such as supply volumes were undisclosed.
Tesvolt last year secured an order for its BESS products and services to be used in a 65MWh battery storage park in Germany's Worms city. The order — Tesvolt's largest order ever — will see it supporting the project's development, supplying and installing the large-scale storage system, as well as providing service and maintenance for the storage power plant.
Tesvolt uses Samsung SDI's lithium nickel-cobalt-aluminum cells in its storage systems. The lithium nickel-cobalt-aluminum cells have a higher energy density and an above-average efficiency when compared to lithium-iron-phosphate cells, said Tesvolt.
Tesvolt started building a 4 GWh/yr BESS gigafactory in Germany in April last year, and it expects the factory to be able to produce up to 80,000 units/yr of BESS. The €30mn ($34mn) plant is expected to begin its commissioning this year.
Tesvolt has been tasked with commissioning storage power plants with more than 40MWh of capacity across Germany and Sweden, it said in July last year.
Samsung SDI has been competing head-to-head with fellow battery producer LG Energy Solutions in the US ESS market. It has secured orders for 90pc of its planned ESS battery production capacity this year, according to the firm.