The German Federal Ministry of the Environment recently announced a $67 million budget to subsidise its photovoltaic (PV)-tied energy storage (ESS) for PV systems with under 30kW of generation capacity.
This new incentive will make energy storage technology that can integrate with a PV array cost-effective.
Subsidising the energy capacity of the system rather than its power capacity is a more logical solution because the solar shifting application requires more energy than power. However, lithium-ion batteries will not benefit from the subsidies as much as other storage systems with longer discharge durations, like molten salt and flow batteries.
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