| Term |
Acronym |
Definition |
Source |
| Contingency |
|
The unexpected failure or outage of a system component, such as a generator,
transmission line, or other electrical element. |
IMP Glossary |
| Contingency Reserve Deployment Instruction |
CRD Instruction |
An instruction issued by SPP to resources cleared for Contingency Reserve in the Real-Time Balancing Market to deploy a specific MW quantity of Contingency Reserve as communicated as a component of the Setpoint Instructions. |
IMP Glossary |
| Contingency Reserve Deployment Period |
CRD Period |
The time period following the issuance of a Contingency Reserve Deployment
Instruction within which a Resource has to deploy Contingency Reserve which is set at
ten (10) minutes. |
IMP Protocols |
| Contingency Reserve Ramp Rate |
|
A curve specifying MW/minute ramp rates that are used to determine a resource’s
maximum Spinning Reserve quantities or Online Supplemental Reserve quantities. |
IMP Glossary |
| External Contingency Reserve |
|
The sum of the external Spinning Reserve and external Supplemental Reserve. |
IMP Glossary |