Within how many calendar days must a Transmission Operator provide a copy of voltage schedules to its Reliability Coordinator and adjacent Transmission Operators after a request?

• A. 30 calendar days
• B. 7 calendar days
• C. 14 calendar days
• D. 60 calendar days

Answer: (A)

Voltage schedules are operating data that tell how the network should be maintained in terms of voltage levels across key points, so the Reliability Coordinator and adjacent Transmission Operators can understand and coordinate with the TO’s plan for voltage control.

When a RC or an adjacent TO requests a copy of these schedules, the Transmission Operator must provide them within 30 calendar days. This timeframe gives enough time to gather and verify the schedules, while still ensuring the RC and neighboring TOs have timely information for reliability analyses and real-time coordination. Shorter windows like 7 or 14 days can be impractical given data volume and potential sensitivities, and waiting 60 days would delay critical coordination.