Category: 📘 Glossary & Acronyms
Operating Reserve (OR)
Backup electricity generation capacity that can be activated quickly to maintain system reliability when unexpected changes occur.
Operating reserves help maintain system stability when:
Operating reserves typically include:
Operating reserves are coordinated by the Independent Electricity System Operator (IESO) as part of real-time electricity system operations.
Operating reserve services are a type of Ancillary Service.
If a large generating unit suddenly shuts down, operating reserve generators may rapidly increase output to maintain system balance.
Last Updated: YYYY-MM-DD