Charging guidance

On this page you will find guidance materials to help you understand how, when and what you'll be charged. 

The methodology we use to set tariffs and calculate charges is in the Connection and Use of System Code (CUSC), Section 14. 


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Charging guidance documents and webinars

National Grid ESO - ERSG - People working in modern office

Charging policy developments

Includes open letter consultations and guidance, charging methodology policy decisions, electricity industry information guides, and Triads data.


Charging statements

TNUoS recovers the cost of installing and maintaining the transmission system. These charges apply to suppliers and generators.


The charges for using Great Britain’s electricity system

All users of the electricity transmission system pay to use it. This brief overview looks at who pays, for what, and how the charges are calculated.