
Clean & Sustainable
Independently Scalable
Environmentally Safe
Affordable Solution
How does the battery work?
During the charging phase, the diluted salt water is split into concentrated salt water and fresh water in the membrane stack and stored separately. The separation occurs under due to the applied electric field, a process known as Electrodialysis (ED).
During the discharging phase, these two streams are combined on which energy is released. This energy is then converted to electricity with the help of the membrane stack with a process called as Reverse Electrodialysis (RED).
Pilot demonstrations
Pilot I: BlueBattery
The blue battery system consists of two major elements: the water storage tanks and the membrane stacks. There are three storage tanks, one with fresh water, one with concentrated salt water and one with diluted salt water.
Battery specification:
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Power output: 1 kW
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Energy capacity: 1 kWh

Pilot II: GreenBattery
The membrane stack in the green battery, along with the anion and cation selective membrane, contains bipolar membrane. This special selective membrane, under electric field, separates the hydrogen (H+) and hydroxyl ions (OH-) from the water (H2O).
Battery specification:
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Power output: 1 kW
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Energy capacity: 7 kWh
