Interchange Coordination and Scheduling - A

Question 1

Balancing Authority “A” has a 100 MW schedule export to Balancing Authority “B”, a 50 MW schedule export to Balancing Authority “C”, and a 250 MW schedule import from Balancing Authority “D”. What is the net scheduled interchange for Balancing Authority “A”?

A. -150 MW
B. 100 MW
C. 0 MW
D. -100 MW

Answer 1

D. -100 MW

Question 2

At 1105 a unit trips offline outside of your Balancing Authority’s area. The frequency dips to 59.91. Your Balancing Authority’s ACE was zero for the hour. Assuming no metering error or time error corrections, what could be said about the inadvertent for your Balancing Authority area for HE 1200?

A. Near zero inadvertent
B. Inadvertent accumulation coming into your area
C. Inadvertent accumulation leaving your area
D. Not enough information given

Answer 2

C. Inadvertent accumulation leaving your area

Question 3

A Transmission Service Provider has studied their system and determined that its ATC is 1000 MW from area “A” to area “B”. Assume that this Transmission Service Provider sells 500 MW of this ATC as non-firm. No other ATC is sold. What amount of firm ATC does this Transmission Service Provider have from area “A” to “A” after this 500 MW non-firm ATC sale is completed?

A. 1000
B. 0
C. 250
D. 500

Answer 3

A. 1000

Question 4

A. Condition when a Balancing Authority, Reserve Sharing Group, or Load Serving Entity does not have adequate energy resources to provide its customers’ expected energy requirement is called:

A. An energy emergency
B. A capacity deficiency
C. A generation emergency
D. An energy deficiency

Answer 4

A. Energy emergency

Question 5

A PSE has one of its transactions curtailed via procedure at 2100. Assuming that the curtailment is subsequently lifted, when can the PSE expect the energy profile of the transaction to return to its original value?

A. When the Transmission Provider submits a new tag
B. When the PSE chooses
C. When the Reliability Coordinator chooses
D. When the Balancing Authority submits a new or revised tag

Answer 5

B. When the PSE chooses

Question 6

A PSE’s “Tag correction” is…

A. A change to an existing Tag that does not affect the reliability impact of the transaction

B. A change to an existing Tag that corrects the energy profile of the Tag

C. A change to an existing Tag that corrects the name of the entity who holds title to the energy

D. A change to an existing Tag that does affect the reliability impact of the transaction

Answer 6

A. A change to an existing Tag that does not affect the reliability impact of the transaction

Question 7

An appropriate use of a pseudo-tie is to ____.

A. Pay back inadvertent
B. Off-set meter
C. Determine ATC
D. Account for joint owned generation

Answer 7

D. Account for joint owned generation

Question 8

A PSE wants to modify an Interchange Transaction’s POD while the Transaction is in progress. What action is required?

A. The Interchange Transaction must be revised
B. No changed are required
C. The Tag must be modified when the opportunity presents itself
D. The Interchange Transaction must be terminated and a new Tag must be submitted

Answer 8

D. The Interchange Transaction must be terminated and a new Tag must be submitted

Question 9

A Balancing Authority has two Interchange Transactions in place for the period from HE 1100 to HE 1800.. Transaction #1 is a 1000 MW import that uses a 20 minute ramp. Transaction #2 is a 400 MW import that uses a 10 minute ramp. If Transaction #1 is curtailed at 1530 with a 10 minute ramp, what is the billed MWh of the two Transactions for HE 1600.

A. 1000 MWh
B. 1100 MWh
C. 1200 MWh
D. 1400 MWh

Answer 9

C. 1200 MWh

Question 10

Balancing Authorities Transmission Operators, and the ____ are responsible for tagged transactions and shall have facilities to receive unsolicited notification from the Tag Authority

A. IDC
B. Reliability Authorities
C. Purchase Selling Entities
D. Load Serving Entities

Answer 10

C. Purchase Selling Entities

Question 11

An interconnection has four Balancing Authorities. The schedules for each Balancing Authority are listed below. What is the net scheduled interchange of Balancing Authority “A”?

Balancing Authority A: To Balancing Authority B 100 MW, To Balancing Authority C 50 MW, To Balancing Authority D 250 MW

Balancing Authority B: To Balancing Authority A -100 MW, To Balancing Authority C -200 MW, To Balancing Authority D 300 MW

Balancing Authority C: To Balancing Authority A -50 MW, To Balancing Authority B 200 MW, To Balancing Authority D 150 MW

Balancing Authority D: To Balancing Authority A -250 MW, To Balancing Authority B -300 MW, To Balancing Authority C -150 MW

A. -700 MW
B. 400 MW
C. 300 MW
D. 500 MW

Answer 11

B. 400 MW

Question 12

Balancing Authority A has the following schedules implemented. What is the Balancing Authorities scheduled net interchange? Import from Balancing Authority B 100 MW, Import from Balancing Authority C 200 MW, Export to Balancing Authority D 800 MW

A. 1000 MW Import
B. 1100 MW Export
C. 500 MW Export
D. 500 MW Import

Answer 12

C. 500 MW Export

Question 13

An Interchange Transaction is stopped after it has been implemented. The correct terminology is that this Interchange Transaction is:

A. Cancelled
B. Eliminated
C. Terminated
D. Altered

Answer 13

C. Terminated

Question 14

An Interchange Transaction is not implemented until it is incorporated into

A. The OASIS system
B. The Balancing Authurities net scheduled interchange
C. The ISN
D. The Balancing Authorities net actual interchange

Answer 14

B. The Balancing Authorities net scheduled interchange

Question 15

Balancing Authority A sells 100 MW to adjacent Balancing Authority B. The schedule begins at the top of the hour and is ramped for 10 minutes. How much energy is actually transferred in that hour?

A. 88 MWh
B. 90 MWh
C. 92 MWh
D. 94 MWh

Answer 15

C. 92 MWh

Question 16

All the reasons listed are reasons to notify other systems in your region through predertermined communication paths EXCEPT ____

A. Emergency actions for inability to purchase capacity
B. Insufficient resources
C. Lack of single contingency coverage
D. Market implications

Answer 16

D. Market implications

Question 17

A PSE must have arranged for personnel to be available for notification of Interchange Transaction changes if the PSE…

A. has confirmed the Transaction
B. Has title to the Transaction
C. Has implemented the Transaction
D. Has Arranged the Transaction

Answer 17

B. Has title to the Transaction

Question 18

A Balancing Authorities inadvertent accumulation reflects over-generation during on-peak hours. If your system load were decreasing, what actions could you take to prevent additional on-peak inadvertent accumulation?

(two answers)

A. Decrease generation
B. Increase Generation
C. Increase transactions into your system
D. Decrease Transactions into your system

Answer 18

A. Decrease generation

&

D. Decrease Transactions into your system

Question 19

Assume a Balancing Authority has a large positive non-firm net scheduled interchange component. The Balancing Authority suffers a generation loss, which leads to a large negative ACE. The Balancing Authority does not have enough Operating Reserve to satisfy the DCS. If all of the following options were available, which would be the best action to take?

A. Immediately implement manual load shedding

B. Broadcast a request to neighboring Balancing Authorities to over-generate until frequency is restored

C. Reduce the remaining non-firm net scheduled interchange as needed

D. Rely on the Interconnection’s frequency bias until natural load variation improves the ACE value

Answer 19

C. Reduce the remaining non-firm net scheduled interchange as needed

Question 20

Balancing Authority A had a 100 MW schedule to Balancing Authority B. Balancing Authority B had a 50 MW schedule to Balancing Authority C. Actual Interchange from A to B was 115 MWh and from B to C was 45 MWh. What is the net inadvertent accumulation for Balancing Authority B?

A. 15 MWh into B
B. 5 MWh into B
C. 10 MWh into B
D. 20 MWh into B

Answer 20

D. 20 MWh into B