Nodal ICCP Availability Reports

1. Nodal ICCP Availability Reports Ken McIntyre / John Messer

2. Discussion • Focus on ICCP Availability Requirement • Review ERCOT’s interpretation and report examples • ERCOT and TSP/QSE to start revising results at NDSWG Note: Data shown in this presentation is not a true representation of participant Nodal performance.

3. ICCP Availability Requirement • ICCP links must achieve a monthly availability of ninety-eight (98%) percent, excluding approved planned outages. • Availability will be measured based on end-to-end connectivity of the communications path and the passing of Real-Time data. • A link will be considered as available when at least eighty-five (85%) percent of the data defined on that link is successfully transferred to ERCOT with a valid or manual quality code.

4. System Wide Availability Metric 1:% System Wide Availability • Sum(TOTAL ICCP UP SECONDS) / Sum(MAX ICCP UP SECONDS) * 100 • The % of time all points for the ERCOT System were available for the period.

5. ICCP Link Availability ICCP LINK TOTAL UP SECONDS MAX UP SECONDS % ICCP LINK AVAILABILITY TOTAL FAILED POINTS TOTAL POINTS % PASS POINTS PASS/FAIL QSE1 1,009,288,744 1,038,290,400 97.21 13 460 97.17 FAIL TSP1 4,377,089,030 4,472,344,800 97.87 47 2,104 97.77 FAIL QSE2 158,202,876 175,564,800 90.11 7 75 90.67 FAIL TSP2 20,774,489,326 21,729,427,200 95.61 524 10,316 94.92 FAIL QSE3 2,522,567,538 2,770,480,800 91.05 115 1,234 90.68 FAIL QSE4 835,166,792 838,728,000 99.58 4 398 98.99 PASS TSP3 5,646,947,724 5,721,364,800 98.70 28 2,692 98.96 PASS TSP4 23,631,854 23,673,600 99.82 0 11 100.00 PASS ICCP Link Availability Metric 2:% ICCP Link Availability • Sum(TOTAL ICCP LINK UP SECONDS) / Sum(MAX ICCP LINK UP SECONDS) * 100 • The % of time all points for the Link were available for the period.

6. ICCP Point Availability Metric 3:% ICCP Point Availability • Sum(Total Point Up Seconds) / Sum(Max Point Up Seconds) * 100 • The % of time the point was available in the period • (Total Points - Total Failed Points) / (Total Points)*100 • The % of points for the ICCP Link that achieved 85%  ICCP Point Availability for the period

7. Point Availability QSE1 SUB STATION DEVICE TYPE DEVICE MEAS TYPE MEASUREMENT TOTAL UP SECONDS MAX UP SECONDS % POINT AVAILABILITY FREQ ND FREQ ANLG HZ 0 2,052,000 0.00 CB POINT 1 CB CB STAT ST 12,863 2,052,000 0.63 CB POINT 2 CB CB STAT ST 12,863 2,052,000 0.63 CB POINT 3 CB CB STAT ST 12,863 2,052,000 0.63 CB POINT 4 CB CB STAT ST 12,863 2,052,000 0.63 UNIT POINT 1 UN PLANTLOAD ANLG AUX 0 2,419,200 0.00 CB POINT 5 CB CB STAT ST 12,699 2,052,000 0.62 CB POINT 6 CB GT STAT ST 12,699 2,052,000 0.62 CB POINT 7 CB GT STAT ST 12,699 2,052,000 0.62 CB POINT 8 CB GT STAT ST 12,699 2,052,000 0.62 CB POINT 9 CB GT STAT ST 12,699 2,052,000 0.62 CB POINT 10 CB CB STAT ST 12,699 2,052,000 0.62 CB POINT 11 CB CB STAT ST 12,699 2,052,000 0.62 ICCP Link Availability ICCP LINK TOTAL UP SECONDS MAX UP SECONDS % ICCP LINK AVAILABILITY TOTAL FAILED POINTS TOTAL POINTS % PASS POINTS PASS/FAIL QSE1 1,009,288,744 1,038,290,400 97.21 13 460 97.17 FAIL TSP1 4,377,089,030 4,472,344,800 97.87 47 2,104 97.77 FAIL QSE2 158,202,876 175,564,800 90.11 7 75 90.67 FAIL TSP2 20,774,489,326 21,729,427,200 95.61 524 10,316 94.92 FAIL QSE3 2,522,567,538 2,770,480,800 91.05 115 1,234 90.68 FAIL QSE4 835,166,792 838,728,000 99.58 4 398 98.99 PASS TSP3 5,646,947,724 5,721,364,800 98.70 28 2,692 98.96 PASS TSP4 23,631,854 23,673,600 99.82 0 11 100.00 PASS ICCP Point Availability

8. Planned Telemetry Outages • ERCOT has ability to enter planned telemetry outage times • Need process for TSP/QSE to notify ERCOT of outages • Outages should at least be entered before the report is generated, verified and posted to MIS

9. Moving Forward • ERCOT to apply better point filter • NDSWG to help decide which reports to continue/change and post • NSDWG to help develop a process for reporting planned outages to ERCOT • ERCOT and TSP/QSE to start revising results

10. Thank You