Georgia DC energy storage equipment prices

How much does gravity based energy storage cost?

Looking at 100 MW systems, at a 2-hour duration, gravity-based energy storage is estimated to be over $1,100/kWh but drops to approximately $200/kWh at 100 hours. Li-ion LFP offers the lowest installed cost ($/kWh) for battery systems across many of the power capacity and energy duration combinations.

What are the different types of energy storage costs?

The cost categories used in the report extend across all energy storage technologies to allow ease of data comparison. Direct costs correspond to equipment capital and installation, while indirect costs include EPC fee and project development, which include permitting, preliminary engineering design, and the owner’s engineer and financing costs.

What are energy storage cost metrics?

Cost metrics are approached from the viewpoint of the final downstream entity in the energy storage project, ultimately representing the final project cost. This framework helps eliminate current inconsistencies associated with specific cost categories (e.g., energy storage racks vs. energy storage modules).

How much does a Diabatic storage system cost?

Diabatic CAES is estimated to be the lowest cost storage technology on an installed cost basis at durations ≥ 4 hours ($295/kWh for a 100 MW, 4 hour system, $122/kWh for a 100 MW, 10 hour system). At 100 MW, 4 hours, LFP has the second lowest installed cost at $385/kWh, followed by NMC ($435/kWh) and lead-acid ($447/kWh).