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Batteries and energy storage

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Storing energy for later use: batteries, pumped storage, duration, losses, materials, costs, safety, and end-of-life handling.

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Principles

  • Storage shifts energy through time and loses some energy in the process; it does not create an energy supply.
  • Specify both power output and usable duration, including degradation, safety, and replacement costs.

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Check your understanding

Why specify both storage power and duration?
A power rating alone gives the stored energy in all cases.
Power describes the delivery rate; duration describes how long it can be sustained.
Storage creates unlimited energy once installed.

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Related category: Environment.