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Sand-Based Carnot Battery Prototype Tests a Different Path for Long-Duration Storage
Key Takeaways
- Aalto University researchers tested a Stirling engine-based Carnot battery using sand as thermal storage.
- Higher engine temperatures improved power output and run time.
- Round-trip efficiency remained low because of thermal losses and limited heat transfer.
- The work offers a practical data point for long-duration thermal electricity storage.
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DT Editorial Team··via pv-magazine.com