The current Interim Deliverability Study (IDS) process allocates available system headroom on constrained
flowgates based on a sequential and project-by-project approach, where projects that first load a facility up
to its limit are granted full or partial deliverability. While this methodology has been effective in the context
of PJM’s previous serial-based interconnection process, the transition to a Cycle-based interconnection
process, System Reliability concerns, evolving system conditions and increased participation in interim
deliverability studies have signaled a need to evolve the current methodology. The goal is to enhance the
Cluster-Based Interim Deliverability Study methodology.