NTPC rolls out state-of-the-art CO2 (Carbon Dioxide) Battery at Kudgi, Karnataka | Current Affairs | Vision IAS
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NTPC rolls out state-of-the-art CO2 (Carbon Dioxide) Battery at Kudgi, Karnataka

Posted 06 Feb 2025

2 min read

The 160MWh (megawatt hours) plant, installed in collaboration with Triveni Turbine Ltd and Energy Dome, Italy marks a landmark development in the domain of Long Duration Energy Storage  (LDES).

  • LDES store energy for extended periods of time ranging from 8 hours, to days, weeks, or seasons. 

CO2 Battery Storage System

  • About: It works by compressing and liquefying CO2 when energy is plentiful (charging phase) and expanding it back into gas to drive a turbine when energy is needed (discharging phase).
  • Functioning: It functions on a ‘Closed Brayton Thermodynamic Cycle’, where the charging and discharging of electricity occur by manipulating the physical parameters of CO2 from vapor to liquid state. 
  • Comparison with other Battery Energy Storage Systems (BESS): Unlike BESS based on electrochemistry, it operates on specialized electro-mechanical turbomachinery.
    • Hence having minimal performance degradation. 

Energy Storge Systems

  • About: They are used for storing excess energy during periods of low demand and releasing it when demand peaks.
  • Significance: Provide a greener and sustainable energy environment, uphold the stability and reliability of grid. 
  • Major types of Energy Storage Systems
    • Chemical Energy Storage Systems: Store chemical energy and convert it to electrical energy using electrochemical reactions. E.g., Lithium- Ion Batteries, Sodium- Ion Batteries, etc. 
    • Advanced Chemical Energy Storage System: New generation of chemical batteries that are more efficient, durable, and environmentally friendly than traditional batteries. E.g., Co2 Batteries, etc. 
    • Thermal Energy Storage System: They store thermal energy by heating or cooling a storage medium to be used at a later time. E.g., Electric Thermal Energy Storage, etc. 
  • Tags :
  • CO2 Battery Energy Storage
  • Energy Storge Systems
  • Long Duration Energy Storage
  • Chemical Energy Storage Systems
  • Thermal Energy Storage System
  • Advanced Chemical Energy Storage System
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