Blackout State
European Union Electricity Market Glossary

 


 

 

Blackout State means the System State where the operation of part or all of the Transmission System is terminated.

 

Other System States are: 

 

Normal State,

  

Alert State,

 

Emergency State,

 

Restoration.

 

The criteria to be used by the Transmission System Operator (TSO) when classifying the System State of its Transmission System as Blackout State are as follows:

i. loss of more than 50% of load in the TSO Responsibility Area; or

 

ii. total absence of voltage for at least 3 minutes in the TSO Responsibility Area and triggering Restoration plans.

 

 

Article 18(4) of the Network Code on System Operation

 

A transmission system shall be in the blackout state where at least one of the following conditions is fulfilled:

 

(a) loss of more than 50% of demand in the concerned TSO's control area,

 

(b) total absence of voltage for at least three minutes in the concerned TSO's control area, leading to the triggering of restoration plans.

 

The TSOs of GB and IE/NI synchronous areas may develop a proposal specifying the level of demand loss at which the transmission system shall be in the blackout state. The TSOs of GB and IE/NI synchronous areas shall notify this instance to ENTSO for Electricity.

 

 

 

 

Links

 

 

Brownout

 

 

 

 

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Last Updated on Friday, 21 April 2017 20:39
 

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