Turning cheap daytime solar electricity into a dispatchable profile results in a total electricity cost of USD 76/MWh, according to the latest analysis by Ember.

Ember’s assessment of storage costs is based on recent auctions in Italy, Saudi Arabia and India and on expert interviews.

Across global markets outside China and the United States, the total capex to build a long-duration (four hours or more) utility-scale battery energy storage system (BESS) project is around USD 125/kWh, the study reads.

The price combines USD 75/kWh for the core equipment shipped from China and USD 50/kWh to install and connect the battery.

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