It is a requirement of CRU’s ECP 2 decision, CRU/20/0603, that the Transmission System Operator (TSO) carry out system studies to inform applicants about possible generation constraint levels in Ireland. EirGrid will complete this requirement across twelve regional reports. The purpose of these reports is to provide generation developers with information on possible levels of generation output reduction for a range of scenarios. The reports present results for a range of generation scenarios and indicate the levels of Total Dispatch Down that solar and wind generation might experience in the future.