Category: 📘 Glossary & Acronyms
Unforced Capacity (UCAP)
The amount of electricity generation capacity that is expected to be available after accounting for forced outages.
UCAP adjusts a generator’s installed capacity to reflect its expected availability.
The value is calculated by reducing installed capacity based on the generator’s historical forced outage rate.
This provides a more realistic measure of how much generation capacity can reliably contribute to meeting electricity demand.
UCAP is often used in electricity markets with capacity mechanisms to determine how much capacity a resource contributes to system reliability.
If a generator has an installed capacity of 500 MW but experiences outages 10% of the time, its unforced capacity may be approximately 450 MW.
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