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Energy & Renewables vocabulary · Grid, Transmission and Distribution

Frequency

Meaning in energy & renewables, with examples

/ˈfriːkwənsi/nounCommon term

In energy & renewables, frequency means: The number of times per second that alternating current changes direction, measured in hertz (Hz). It is 50 Hz in Europe and Turkey and 60 Hz in North America.

In Turkish: frekans, şebeke frekansı

How it is used

Grid operators watch frequency second by second. When demand exceeds supply, frequency drops; when supply exceeds demand, it rises. Plants and batteries provide frequency response to keep it stable. Too large a deviation can lead to load shedding or a blackout.

Example sentences

  1. Grid frequency fell to 49.8 Hz when the large unit tripped.

  2. The battery earns most of its revenue from frequency response services.

Common collocations

  • grid frequency
  • frequency response
  • frequency control
  • frequency drop
  • frequency deviation
  • grid operatorThe organisation that runs the power system in real time, balancing supply and demand and keeping voltage and frequency stable across the network.
  • blackoutA total loss of electricity over a large area, often caused when a major fault spreads through the grid faster than operators can contain it.
  • 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.
  • load sheddingDeliberately cutting power to some areas or customers for a period, usually in rotation, to protect the grid when supply cannot meet demand.

This word in other fields

The same English word can have a different meaning in another field:

More terms: Grid, Transmission and Distribution

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