Lessons

TOPIC 25 · CONCISE WORKBOOK

Connections, system strength and curtailment

Diagnose connection and operational constraints.

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Diagnose a connection bottleneck

A connection assessment tests the plant in its network context. Power flow, stability, system strength and performance standards answer different questions. A technically connected plant may still face operational constraints and curtailment.

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Working relationship

Export capability = minimum of applicable plant and network limits

What to keep separate

Do not infer unconstrained market access from a signed connection agreement.

Your task

Create a constraints register separating connection conditions from market-dispatch constraints and planned outages.

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Key terms in plain English
MW
Megawatt: a measure of power, or how quickly energy is transferred. A plant's maximum MW is not its actual output in every interval.
Curtailment
A reduction in generation below what could otherwise have been produced. Network limits, system security and commercial decisions can have different causes.