CMP281: Removal of BSUoS Charges From Energy Taken From the National Grid System by Storage Facilities

The modification aims to remove liability from storage facilities for Balancing Services Use of System (BSUoS) charges on imports.

CMP281 was withdrawn by the original Proposer and in line with Section 8.16.10 of the CUSC the Modification has been adopted by First Hydro Company. 

Modification status: Concluded

Last updated: 7 April 2021

Code Administrator Contact: [email protected] 

Governance Route: Standard 


* Low: National Grid: Changes will be required to the BSUoS billing systems to tag out the appropriate metered import volumes for the purpose of the BSUoS charging base. Suppliers: The reduced recovery of BSUoS charges from storage operators will need to be recovered from the balance of parties liable to BSUoS. We estimate the impact to be small: circa 3.5TWh of pumping = circa1.5% of supply liable for BSUoS = circa 0.75% of total BSUoS bill.

 Implemented: 1 April 2021


Workgroup Report

Workgroup Consultation

Draft/Final Modification Report

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Draft Final Modification Report

Final Modification Report