Real time transmission constraints or contingencies may be alleviated with generators operating ______________ - ️️off cost out of merit.
Monitoring ___________ may give insights into system constraints. - ️️Monitoring LMP's
PJM calls for _____________ reserves to recover ace so that ...
Real time transmission constraints or contingencies may be alleviated with generators operating ______________ - ✔ ✔ off cost out of merit. Monitoring ___________ may give insights into system constraints. - ✔ ✔ Monitoring LMP's PJM calls for ___________ __ reserves to recover ace so that tie line schedules are maintained. - ✔ ✔ PJM calls on synchronized reserves If not cancelled by PJM, the minimum generation alert expires at the end of the specified ______________. - ✔ ✔ light load period When PJM decl ares a hot weather alert, the generation dispatcher should determine if maintenance can be deferred and notify all generating stations and key personnel. - ✔ ✔ During system restoration, the two categories of reserves are dynamic and spinning. - ✔ ✔ During system restoration, frequency should be maintained between 59.75 and 61.00 Hertz. - ✔ ✔ PJM issues a heavy load voltage schedule. Member companies who own generation facilities should ensure voltage regulators on generating units are in service & au tomatic. - ✔ ✔ A unit being dispatched economically by PJM should set its megawatt output based on the unit's dispatch rate or desired megawatt level. - ✔ ✔ A fossil steam unit is considered fuel limited when it is not capable of running at its maximum capacity for the next 72 hours - ✔ ✔ During system restoration prior to synchronization of a unit, the dispatcher should ensure sufficient load is available to stabilize unit operation. - ✔ ✔ A large unit in an external control area near PJM/PJM West trips. The PJM operator will see ace remain the same, frequency decrease. - ✔ ✔ LMPs will change when marginal generator output changes - ✔ ✔ The two control signals sent by the PJM E M S are regulation and dispatch rate (desired MW output). - ✔ ✔ An all -call is the one -way communication system used to disseminate information to market operation centers. - ✔ ✔ Real time bus prices may be monitored using data viewer. - ✔ ✔ Not offering an available PJM capacity resource into the day ahead market is a violation of PJMs two settlement market rules. - ✔ ✔ A unit that fails to start when scheduled, would be classified as an unplanned outage. - ✔ ✔ Maximum Generation Emergency is declared by PJM when generation is required above the highest increme ntal economic cost. - ✔ ✔ Maintenance outages are permitted when a unit can be held online until the following Monday, and system reliability is not affected - ✔ ✔ If PJM ace shows over -generation, actual imports are less than scheduled. - ✔ ✔ PJM wi ll request a Supplementary Status Report when a Maximum Generation Emergency Alert is issued. - ✔ ✔ If a fossil steam unit has less than 32 hours of fuel at maximum capacity, it should be bid at maximum emergency. - ✔ ✔ The loss of a large generation u nit on the PJM system can be detected by monitoring frequency and PJM ace. - ✔ ✔ A 1000 megawatt unit has tripped in the PJM control area and the PJM ace now indicates under -
generation of 1050 Megawatt. PJM should request 100% synchronized reserves be lo aded. - ✔ ✔ Alerts are issued in advance of a scheduled load period to allow sufficient time for the generation dispatcher to prepare for the anticipated capacity shortages - ✔ ✔ The amount of synchronized reserves must be large enough to cover the los s of the largest single energy contingency. - ✔ ✔ When preparing a supplementary status report (SSR), a steam unit that has 30 hours of fuel remaining. This unit should be reported as a resource limited unit. - ✔ ✔ PJM responds to capacity shortages by issuing alerts in advance of a scheduled load period to allow sufficient time for members to prepare for anticipated initial capacity shortages. - ✔ ✔ During black start restoration, priority access to cranking power should be given to hot units that can return to service immediately. - ✔ ✔
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