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Energy & Renewables vocabulary · Energy Storage

Energy storage

Meaning in energy & renewables, with examples

nounCore term

In energy & renewables, energy storage means: Technologies that capture energy when it is available and release it later when it is needed, such as batteries, pumped hydro and thermal storage.

In Turkish: enerji depolama

How it is used

A fast-growing topic in projects, regulation and investment. Storage is deployed, paired with solar or wind, and sized in MW (power) and MWh (energy). People talk about storage capacity, storage duration (for example four-hour storage) and long-duration storage.

Example sentences

  1. Energy storage lets us shift solar power from noon to the evening peak.

  2. The tender requires a 50 MW / 200 MWh energy storage system.

Common collocations

  • energy storage system
  • storage capacity
  • long-duration storage
  • pair with storage
  • battery storageStoring electricity in large rechargeable batteries so it can be released later, for example during the evening peak or when the grid needs fast support.
  • pumped hydro storageStoring energy by pumping water up to a higher reservoir when electricity is cheap or plentiful, then releasing it through turbines to generate power when needed.
  • state of chargeHow full a battery is at a given moment, shown as a percentage of its usable capacity, from 0 percent (empty) to 100 percent (full).
  • round-trip efficiencyThe share of the energy put into a storage system that can be taken out again after losses in charging, storing and discharging, shown as a percentage.
  • intermittencyThe way the output of solar and wind changes with the weather and the time of day, so it cannot be fully controlled or guaranteed at every moment.

More terms: Energy Storage

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