Not true. A battery stores kWh. kW is practically unlimited for utility-scale batteries. By contrast, many other storage methods have limits on kW, but may offe

Not true. A battery stores kWh. kW is practically unlimited for utility-scale batteries. By contrast, many other storage methods have limits on kW, but may offer practically unlimited kWh. Some limit charging kW, but may be discharged at a higher rate. Short-term storage wants high charge and discharge rate, efficiency and durability. Longer-term storage mainly favors cheap capacity, and tolerates low charging rate and low efficiency.