VoltStorage says its new 50 kWh vanadium redox flow battery solution can be scaled up to 500 kWh and is intended as a stationary storage solution especially for customers from industry, agriculture and commercial sectors.
The VoltStorage VDIUM C50 is an AC-coupled battery with a system voltage of 48 V. The manufacturer offers a 20-year guarantee on the electrolyte and promises that it will degrade less than 0.3% per year.
It also offers a five-year guarantee on the power electronics. The new product comes in a common container and weighs 2 tons without the electrolyte. When fully filled, it weighs 6.5 tons. The electrolyte pumps and power electronics consume 40 W in standby mode.
The system can be cascaded in a 10-unit configuration and reach a total capacity of 500 kWh. The discharge capacity is 9 kW. At full power, the system is empty after six hours.
The manufacturer said that the system, thanks to the redox technology, can achieve a depth of discharge of 100%. When charging the system, operators should plan six hours for 80% and nine hours for 100%. At 10 kW, the charging power is slightly higher than the discharging power.
VoltStorage also said the system features an IP54 protection rating. It recommends installing it in an outdoor environment.
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