China-based Sofar has released PowerMaster, a fully integrated, modular utility-scale battery energy storage system. One version is equipped with 280 Ah LFP cells and has a capacity of 3.44 MWh, while the other features 329 Ah LFP battery cells with 3.93 MWh of storage capacity.
PowerMaster has an operating voltage range from 960 V to 140.6 V. It measures 6,058 mm x 2,438 mm x 2,896 mm and weighs around 34 tons. The 329 Ah LFP configuration weighs 35 tons.
Its operating temperature range goes from -30 C to 55 C. It can be installed at altitudes of up to 4,000 meters. The product features an IP55 protection level.
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The system combines air and liquid cooling system, which according to Sofar, can reduce heat dissipation loss by about 30%. Maximum temperature difference between cells is lower or equal to 2.5 C, which in turn helps extend the battery lifetime by 14%, says the manufacturer.
Sofar PowerMaster’s safety systems include triple fire suppression system, flammable gas emission, and explosion-proof design to prevent secondary combustion. Its smart rack-level management increases system discharge capacity by 7%. 99% maximum conversion efficiency, The system is capable of power grid adaptability and can be connected to both 50Hz and 60Hz networks.
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