Administrative Outage - Waiting time, force majeure events, or other outage not inherent to equipment aspects.

Forced Derate - Immediate, delayed, or postponed unplanned derate.

Forced Outage - Immediate, delayed, or postponed unplanned outage.

Maintenance Outage - Outage that can be delayed beyond the next weekend but before the next long-lead planned outage.

Planned Derate - Derate scheduled well in advance and having a predetermined duration.

Planned Outage - Outage scheduled well in advance and having a predetermined duration.

Reserve - Time when the system is available to run but is not utilized/dispatched due to economic or other strategic reasons.