CellCube Energy Storage Systems Inc. and Immersa Limited announced a strategic partnership to deliver large scale vanadium redox flow battery systems into the UK market. Battery storage has already demonstrated its ability to reduce costs in the Enhanced Frequency Response (EFR) and Firm Frequency Response (FFR) market that was set up to create a route for batteries to bid to be part of the power grid. Now that the peak demands get into multiple hours and the capacity market offers business opportunities the vanadium redox flow system will show its strength with extended performance warranties, dramatically increased battery cycles and near zero capacity degradation. The levelized costs of vanadium storage had dropped dramatically and will continue to do so.