Grid coupled, solar and wind energy
Who is redT?
We develop and supply durable and robust energy storage machines for use in a wide range of on and offgrid industrial, commercial and grid-scale applications.
Unlike conventional batteries, where energy is stored in a cell, our patented energy storage modules store energy in a liquid. This technology does not degrade like conventional batteries and affords exceptionally long life with (100%) discharge functionality, making the system perfectly suited to integration alongside renewables such as wind and solar.
The system is equally well suited to work alongside diesel generators in off-grid applications, improving efficiency and reducing expenditure on fuel and other associated costs.
How does it work
Vanadium Redox Flow Battery (VRFB) technology utilises the flow of vanadium electrolyte across an ion exchange membrane. When this occurs, a reversible electrochemical reaction takes place, allowing electrical energy to be stored and subsequently returned.
The technology relies on the ability of Vanadium to exist in four different oxidation states (V²+; V³+; V4+; and V5+), each of which holds a different electrical charge.
Demonstrated by the diagram above, the electrolyte in the negative half-cell contains v³+and v²-+ions, whilst the electrolyte in the positive half-cell contains v4+and v5+ ions. This represents the machine in its charged state. On discharge, a redox reaction occurs in the central stack, creating a surplus of electrons at the negative terminal, generating an electrical current.
The redT energy storage machine offers numerous advantages when compared to other technologies available on the market today.