ERCOT Frequency Control Report May 2019 ERCOT Operations Planning PDCWG June 12 th 2019 Summary of May 2019 CPS1 17077 Current CPS1 12Month Rolling Average 17420 2 BAAL Exceedances ID: 771290
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ERCOT Frequency Control Report May 2019 ERCOT Operations Planning PDCWG | June 12 th , 2019
Summary of May 2019 CPS1: 170.77%Current CPS1 12-Month Rolling Average: 174.20%2 BAAL Exceedances1 hourly CPS1 scores below 100%BAAL-003 Events have updated through 20182018 BAAL-003 FRM Performance: -843.17 2 2019 RMS1 Statistics Mean: 15.23 mHz Min: 13.11 mHz Max: 17.86 mHz Energy Statistics Total Energy: 32,055,184 MWh Wind Energy: 7,138,610 MWh Percent Energy from Wind Generation: 22.27% Minimum System Inertia Mean: 210,959 Max: 248,468 on May 31st Min: 184,909 on May 17th
Frequency Control CPS1, BAAL, & RMS1
Hourly CPS1 by Day 4 May-19 CPS1 (%): 174.07
BAAL Exceedances & Violations There were 2 BAAL exceedances in MayMay 31, 2019Unit Trip at 11:56:47Loss of 368 MWLess than 59.91 Hz for 1 minuteMay 31, 2019Unit Trip at 21:06:33Loss of 849 MWLess than 59.91 Hz for 1 minutes5
15-Minute Average CPS1% 6 May-19 CPS1 (%): 174.07
12-Month Rolling Average CPS1 7 Current 12-Month Rolling Average: 174.20%
Daily RMS1 of ERCOT Frequency by Year 8
Daily RMS1 of ERCOT Frequency by Month 9
Daily RMS1 of ERCOT Frequency by Month 10
Frequency Profile Comparison
Frequency Profile Comparison 12
Frequency Profile Comparison 13
Time Error Correction
ERCOT Daily Time Error 15
Time Error Corrections Log Summary 16 There have been no time error corrections since December 2016
BAL-003 Performance
Op. Year 2018 BAL-003 Selected Events 18
Op. Year 2018 BAL-003 FRM Performance 19
Op. Year 2018 BAL-003 Selected Events – Update 20
Op. Year 2018 BAL-003 FRM Performance - Update 21
ERCOT Energy Statistics
Total Energy 23
Total Energy from Wind Generation 24
% Energy from Wind Generation 25
ERCOT System Inertia
Daily Minimum System Inertia 27
Questions? Thank you!