How cheap is battery storage? | Ember
This report provides the latest, real-world evidence on the cost of large, long-duration utility-scale Battery Energy Storage System (BESS) projects. Drawing on recent auction results from
Ember provides the latest capex and Levelised Cost of Storage (LCOS) for large, long-duration utility-scale Battery Energy Storage Systems (BESS) across global markets outside China and the US, based on recent auction results and expert interviews. 1. All-in BESS projects now cost just $125/kWh as of October 2025 2.
Manufacturers typically oversize the installed capacity by at least 10%, allowing them to guarantee a 0–100% state of charge operating range. The price of Lithium Iron Phosphate (LFP) battery cells for stationary energy storage applications has dropped to around $40/kWh in Chinese domestic markets as of November 2025.
The analysis focuses on markets outside China and the United States, where competitive procurement of Chinese-manufactured equipment is reshaping global storage economics. Ember's assessment of storage costs as of October 2025, based on recent auctions in Italy, Saudi Arabia and India and on expert interviews, shows:
A levelised cost of storage (LCOS) of $65/MWh. An all-in capex of $125/KWh leads to a cost of $65/MWh to move electricity, based on the latest real-world project parameters.
This report provides the latest, real-world evidence on the cost of large, long-duration utility-scale Battery Energy Storage System (BESS) projects. Drawing on recent auction results from
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