|Operational Security Limits|
|European Union Electricity Market Glossary|
Operational Security Limits within the Network Code on System Operation are the acceptable operating boundaries for the electricity system: thermal limits, voltage limits, short-circuit current limits, frequency and dynamic stability limits.
Article 32(1) of the said Code requires each Transmission System Operator (TSO) to maintain power flows within the operational security limits defined when the system is in normal state and after the occurrence of a contingency from the contingency list.
According to the Response of 19 July 2017 (updated on 31 August) of EFET, EURELECTRIC, NORDENERGI and MPP to the TSOs’ consultation on Capacity Calculation Methodologies the capacity calculation methodology should provide explanation and transparency on how the power factor is computed and impacts critical network elements.
The starting case/general rule should be that it is set at a sufficiently high value that could only be reduced in case this would create security problem, with appropriate justification.
It should be backed by a statistical calculation and measurement of actual power factors on relevant network elements.
There should be no double counting. The power factor should also be monitored by National Competent Authorities.
Network Code on System Operation, Article 25, 32
|Last Updated on Wednesday, 20 September 2017 22:19|