Solution section
Scarcity & Reliability
How scarcity, reliability and constrained access are managed.
Scarcity & Reliability
Operational scarcity is represented through market prices and security-constrained dispatch.
PJM also procures ancillary services and operates a separate capacity market.
Reliability is therefore produced through a combination of:
- energy dispatch;
- reserves;
- ancillary services;
- transmission-security constraints;
- capacity procurement.
Historical exposure to poor service is not carried forward as an explicit fairness state in standard LMP clearing.