Which entities are required to perform Real-time Assessments at least every 30 minutes?

• A. Transmission Operator only
• B. Reliability Coordinator only
• C. Transmission Operator and Reliability Coordinator
• D. Balancing Authority

Answer: (C)

Real-time Assessments are ongoing checks of the Bulk Electric System’s current state to catch emerging reliability concerns and guide operational decisions, with a minimum cadence of every 30 minutes. The entities required to perform these assessments are the Transmission Operator and the Reliability Coordinator. The Transmission Operator is responsible for the real-time operation and control of the transmission facilities in its area, so it must continually assess conditions and actions needed to keep the transmission system within operating limits. The Reliability Coordinator has the broader duty to oversee reliability across a region, coordinating among multiple Transmission Operators and Balancing Authorities to maintain regional stability and prevent cross‑area issues; real-time assessments at 30-minute intervals provide the situational awareness needed for timely coordination and risk mitigation. Together, these two roles cover both the local operational perspective and the regional coordination needed to maintain the Bulk Electric System’s reliability.