The global rise in electricity generation from renewable sources has led to increased demand for advanced batteries that can be used to firm this intermittent supply. This requirement is particularly important in areas where grid connections may be tenuous, unreliable or even non-existent. Additional demand for advanced batteries is presented by grid applications such as peak-shifting and T&D (Transmission & Distribution) deferral. Demand for the more traditional battery backup application is also increasing for reasons such as the desire to replace diesel generators and the increasing reliance of business on a dependable energy source.