What must be ensured for the interchange schedules between two BAs?

The interchange schedules between two Balancing Authorities (BAs) are crucial for maintaining the reliability and stability of the electric grid. Ensuring that these schedules accurately reflect both negative and positive flows is vital because it represents the actual physical exchange of electricity between the two entities. This accuracy helps in effective grid management, allows for proper balancing of supply and demand, and ensures compliance with reliability standards.

When interchange schedules accurately denote negative and positive flows, they provide a clear understanding of how much electricity is being imported or exported. This supports the overall integrity of the power system by facilitating real-time adjustments and the provision of ancillary services as necessary. It also helps in reducing the risk of imbalances that could lead to instability in the electrical grid.

In contrast, other aspects like mutual agreement without verification, reflecting varying operational conditions, or having confirmed real-time monitoring, while they are essential to the operational framework of the BAs, do not emphasize the critical nature of accurately depicting the exchanges. The focus on precise flow measurements is paramount for operational effectiveness.