Major projects now deploy clusters of 20+ containers creating storage farms with 100+MWh capacity at costs below $280/kWh. Technological advancements are dramatically improving solar storage container performance while reducing costs.
[pdf] The key global companies of Solar Container include BoxPower Inc., Greenergy A&D, Renewable Future (PTY) Ltd., Multicon AG & Co. KG, ERM Énergies, Tiger Power, Ecosun Expert, SOLARDRIVE CONTAINER POWER ApS and Vollmer-Group (Intech Clean Energy Inc.), etc.
[pdf]