CMP331: Option to replace generic Annual Load Factors (ALFs) with site specific ALFs

The purpose of this modification is to provide new generators with the option to replace the generic Annual Load Factors (ALFs) used to determine their TNUoS charges with a site-specific ALF. The site-specific ALF will be based on the generators expected output and require approval from the ESO.

Modification status: Current - Workgroup Consultation

Last updated: 24 January 2021

Code Administrator Contact: Paul J Mullen - [email protected]

Governance Route: Standard 


* Medium: New Transmission connected generators

* Low: Existing Transmission connected generators; National Grid ESO



Workgroup Terms of Reference

Workgroup meetings and summary papers

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Workgroup Consultation

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Code Administrator Consultation

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Draft/Final Modification report

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