Following on from discussions at the Mod Panel, CER has decided that NQH consumption should be
resettled on a half hourly basis for the time since January 2005 until the SEM arrangements are fully
phased in. To carry out the resettlement, they require 15 minute reaggregation difference information
rather than at rolled up single day and night difference as currently. There is also a requirement for ESB
Networks to provide historical data back to Jan 2005.