Does battery storage lead to lower GHG emissions?

A study of the Australian National Electricity Market shows that using battery storage in the Australian national electricity grid reduces CO2 emissions by providing further flexibility for the operation of conventional generators and also by decreasing the amount of unused renewable energy. Interestingly, energy storage is more efficient at reducing carbon emissions in the context of higher carbon and/or fuel prices. In addition to reducing emissions, battery storage can decrease the cost of delivered energy.