SEM-23-049 - Constraints Costs (Imperfections Charges) 2023/24 Consultation Paper Published 30 June 2023
SEM-19-031 - Imperfections Charge 2019/20 and Incentive Outturn 2017/18 consultation paper Published 01 July 2019
SEM-16-031 Imperfections Charge 2016-17 and Incentive Outturn 2014-15 Consultation Paper Published 23 June 2016
Consultation on TSO's changes to existing Testing Tariffs Recommendations Paper Published 18 February 2014
Harmonised Ancillary Services (HAS) and Other System Charges (OSC) for the Tariff Year 2013-2014 Published 16 April 2013
Harmonised Ancillary Services (HAS) and Other System Charges (OSC) for the Tariff Year 2012-2013 consultation Published 04 April 2012