Under the terms of its Transmission Licence, National Grid is required to keep its Charging Methodologies under review at all times and to make modifications to the methodologies that would better achieve the relevant objectives laid down in Licence Conditions C7A & B.

From 1st January 2011 the charging methodologies form Section of 14 of the CUSC and therefore modifications to the methodologies are taken forward through the CUSC Amendments process.

This section of the Charging website details proposed changes to the Charging Methodologies that were raised prior to 1st January 2011.