The purpose of the PJM Transmission Owner/Transmission Operator (TO/TOP) matrix is to clearly delineate the tasks that PJM is responsible for, but are shared with or assigned to the Transmission Owners by PJM. These reliability tasks include implementation of Directives issued by PJM as the Transmission Operator (TOP), Balancing Authority (BA), and Reliability Coordinator (RC). The reliability tasks also include adherence to processes defined in the PJM Manuals, the PJM Operating Agreement, the PJM
Consolidated Transmission Owners’ Agreement, and the PJM Reliability Assurance Agreement.
The document that memorializes this agreement is referred to as the TO/TOP Matrix. Links to the more recent versions can be found below.
Early versions of the Matrix were written and maintained by the Compliance Staff at PJM. Today, the construction of the matrix is a collaborative effort between PJM and the Transmission Owners. This work is performed by TO/TOP Matrix Subcommittee, under PJM’s Transmission Owner’s Agreement Administrative Committee (TOA-AC).
In order to assure itself of compliance, PJM conducts regular audits of its Transmission Owners to review their evidence that they are meeting their assigned task in the Matrix. The guidelines for conducting these audits can be found in the
TO/TOP Reliability Audit Procedure . This document describes and defines the process that PJM will use to conduct PJM Transmission Owner/Transmission Operator Reliability Audits. The procedure is designed to validate the PJM Member TO’s performance of assigned or shared tasks identified in the PJM TO/TOP Matrix that evaluate a Member TO’s ability to comply with the applicable reliability standards and PJM-specific TOP requirements.