Grid Interconnections

Where this fits

How neighbouring power systems exchange power and support reliability.

Core system ideas

Interconnections allow regions to share generation and reserves over transmission links.

Flows are governed by network physics and operating agreements rather than by a single transaction path.

A strong interconnection can improve flexibility while also transmitting disturbances if protection and coordination are inadequate.

Interfaces and tradeoffs

Transmission is a network problem: removing or loading one element can redistribute flows across many others. Planning and operation therefore rely on coordinated models, protection and utility procedures.

What organizations measure

Transfer capability, scheduled/actual interchange, congestion, frequency and contingency performance.