Integrated Systems Market Trials July 10 2015 1

Integrated Systems Market Trials July 10, 2015 1

Call Etiquette • Mute your phones • Do not put the call on hold (even if you are on mute) • No roll will be taken – please include company name when signing into Web-Ex so that your attendance will be noted • Please be courteous of everyone’s time • Identify yourself and company when speaking 2

Agenda • Weekly Activity Review • Tagging Exercise • Training Opportunities • Reminders • Look Ahead at Next Week’s Schedule • Questions 3

Weekly Activity Review 4

Day-Ahead Market Update • Results Posted by 4: 00 pm CST (6/29 – 7/3) • IS Commitments Out of DAMKT • General Questions About Results Bryan Clark 5

IS DAMKT Total Gen MW (7/1) 6000 5000 4000 Total Capacity Total Dispatched MWs 3000 Dispatched MWs(Self) Dispatched MWs(Market) 2000 1000 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Bryan Clark 6

Day-Ahead RUC Update • • DA RUC cases completed by 20: 00 OD -1 for each Operating Day – No Emergency Conditions – No Breached Constraints DA RUC Market Commitments for IS occurred on 6/30 through 7/2 only Raleigh Mohr 7

Day-Ahead RUC Commitments (6/29) • No IS DA RUC commitments DA RUC 06/29/2015 2000 1800 1600 1400 1200 1000 800 600 400 200 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MARKET OUTAGE Net DA RUC SELF Raleigh Mohr 8

Day-Ahead RUC vs DAMKT (6/29) OPERATING HOUR ENDING 1: 00 2: 00 3: 00 4: 00 5: 00 6: 00 7: 00 8: 00 9: 00 10: 00 11: 00 12: 00 13: 00 14: 00 15: 00 16: 00 17: 00 18: 00 19: 00 20: 00 21: 00 22: 00 23: 00 24: 00 DAMKT BID vs MTLF PCT DAMKT MTLF - BID 99 100 99 97 94 90 87 88 88 86 85 84 83 83 84 84 84 87 89 151 -6 31 146 639 1409 2720 3608 3761 4094 4813 5580 6137 6898 7151 7237 7440 7017 6807 6553 6235 5961 4631 3559 DAMKT VER MTWF 1069 997 1243 1480 1783 2009 2265 2693 2911 3047 3196 3285 3299 3331 3493 3556 3599 3596 3517 3470 3452 3425 3245 3012 VIRTUAL OFFER – VIRTUAL BID -666 -718 -738 -738 -713 -690 -667 -580 -528 -402 -387 -338 -207. 233 -356 -433 -638. 879 -650 -680 -698 TOTAL DAMKT SHORTAGE 554 273 536 888 1684 2680 4247 5563 5959 6451 7342 8285 8908 9827 10257 10406 10701 10405 9968 9590 9048 8736 7196 5873 Raleigh Mohr 9

Day-Ahead RUC Commitments (6/30) DA RUC 06/30/2015 WAUE Market Committed Capacity 3500 100 3000 90 2500 80 2000 70 1500 60 1000 50 500 40 0 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 -500 20 10 -1000 MARKET OUTAGE Net DA RUC SELF 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Raleigh Mohr 10

Day-Ahead RUC vs DAMKT (6/30) OPERATING HOUR ENDING 1: 00 2: 00 3: 00 4: 00 5: 00 6: 00 7: 00 8: 00 9: 00 10: 00 11: 00 12: 00 13: 00 14: 00 15: 00 16: 00 17: 00 18: 00 19: 00 20: 00 21: 00 22: 00 23: 00 24: 00 DAMKT BID vs MTLF PCT DAMKT MTLF - BID 100 101 101 101 100 100 99 99 99 100 100 101 31 -97 -143 -313 -336 -284 -294 -166 -130 7 143 253 260 314 264 141 427 288 255 138 77 14 -62 -224 DAMKT VER MTWF 2848 2578 2561 2504 2244 2343 2227 2345 2532 2739 2799 2900 2993 3040 3108 3067 2915 2718 2551 2286 1808 1262 654 164 VIRTUAL OFFER – VIRTUAL BID -698 -713 -738 -733 -738 -708 -689 -618. 823 -539 -445 -420 -199. 184 -43. 88 17. 231 170. 297 100. 506 -36. 947 -281 -420 -479 -597 -660 TOTAL DAMKT SHORTAGE 2181 1768 1685 1453 1170 1326 1195 1471 1713 2127 2403 2708 2833 3155 3328 3225 3512 3106 2769 2143 1465 797 -5 -720 Raleigh Mohr 11

Day-Ahead RUC Commitments (7/1) WAUE Market Committed Capacity DA RUC 07/01/2015 4000 350 300 2500 250 2000 1500 200 1000 150 500 100 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 -500 50 -1000 MARKET OUTAGE Net DA RUC SELF 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Raleigh Mohr 12

Day-Ahead RUC vs DAMKT (7/1) OPERATING HOUR ENDING 1: 00 2: 00 3: 00 4: 00 5: 00 6: 00 7: 00 8: 00 9: 00 10: 00 11: 00 12: 00 13: 00 14: 00 15: 00 16: 00 17: 00 18: 00 19: 00 20: 00 21: 00 22: 00 23: 00 24: 00 DAMKT BID vs MTLF PCT DAMKT MTLF - BID 103 104 104 104 103 102 101 101 100 100 101 101 102 -934 -1052 -1038 -1055 -1006 -1065 -928 -814 -680 -483 -318 -196 -156 -99 44 57 60 -44 -94 -180 -228 -278 -368 -510 DAMKT VER MTWF -736 -998 -934 -973 -937 -724 -534 -239 49 450 657 1159 1399 1482 1546 1485 1498 1482 1513 1626 1673 1858 1821 1582 VIRTUAL OFFER – VIRTUAL BID -667 -698 -713 -698 -666. 666 -627 -564 -462 -397 -307 -174. 34 75. 324 315. 428 512 535. 945 245. 867 58 -115. 944 -173. 877 -344 -465. 383 -660 TOTAL DAMKT SHORTAGE -2337 -2748 -2670 -2741 -2656 -2487 -2128 -1680 -1195 -495 -58 656 1069 1458 1905 2054 2094 1684 1477 1330 1271 1236 987 412 Raleigh Mohr 13

Day-Ahead RUC Commitments (7/2) WAUE Market Committed Capacity DA RUC 07/02/2015 4000 3500 250 3000 2500 2000 1500 100 500 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 50 -500 -1000 MARKET OUTAGE Net DA RUC SELF 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Raleigh Mohr 14

Day-Ahead RUC vs DAMKT (7/2) OPERATING HOUR ENDING 1: 00 2: 00 3: 00 4: 00 5: 00 6: 00 7: 00 8: 00 9: 00 10: 00 11: 00 12: 00 13: 00 14: 00 15: 00 16: 00 17: 00 18: 00 19: 00 20: 00 21: 00 22: 00 23: 00 24: 00 DAMKT BID vs MTLF PCT DAMKT MTLF - BID 102 102 102 101 101 101 102 102 101 102 -487 -609 -543 -529 -470 -478 -408 -343 -422 -498 -497 -558 -580 -566 -541 -426 -559 -688 -658 -691 -634 -450 -503 -709 DAMKT VER MTWF 946 894 1017 1172 1042 1385 1523 1571 1707 1829 1807 2003 2153 2543 2901 2989 2828 2755 2913 3309 3730 3934 4136 4275 VIRTUAL OFFER – VIRTUAL BID -441 -672. 105 -697. 656 -705 -697 -696 -609 -470. 73 -422. 529 -96 -99. 545 -37 157. 45 190. 409 240. 268 123. 304 22. 254 -79. 945 -385 -428 -363 -611. 712 -697 TOTAL DAMKT SHORTAGE 18 -387 -224 -62 -133 210 419 619 815 909 1214 1346 1536 2134 2550 2803 2393 2089 2175 2233 2668 3121 3021 2869 Raleigh Mohr 15

RTBM Analysis • Reminder to submit an RMS Ticket for any questions • June 29 th – July 1 st MCP and LMP prices strayed due to the regulation selection process in the test environment. Enough resources were selected to regulate but CMODES didn’t change on those resources since this is a test environment. Therefore RTBM wasn’t able to regulate with the resources selected and shortages occurred. SPP did true up the CMODES to reflect production but there were multiple uploads that effected SPPs process for trueing up CMODES. • July 2 nd LMPs and MCPs closely correlated with production prices Gentry Crowson 16

Settlements (6/28 – 7/4) • Meter Submittals – Reviewed OD 7/1 meter submittal and seeing an increase in the past week of exports and load but generation remains steady – Big jump in negative calibration • BSS Submittals continue to look great! • Everything is up to date and posted on schedule. • Posted Invoice 7/9: Included 14 Operating Days 7 Initials, 7 Finals. Please review! David Daniels 17

Settlements – Daily Calibration Operating Day Total Gen Total Interchange 3, 158 6/26/2015 -75, 159 7, 471 6/27/2015 -76, 150 Total Load Total Losses Calibration 66, 559 2, 453 2, 989 Load submittal decrease 65, 369 2, 589 Notes 721 6/28/2015 -73, 660 12, 087 64, 166 2, 211 -4, 804 Started seeing jump in Export Qty's 6/29/2015 -77, 810 11, 760 69, 041 2, 407 -5, 398 Started seeing jump in Export Qty's 6/30/2015 -78, 595 16, 364 65, 861 2, 385 -6, 015 Started seeing jump in Export Qty's 7/1/2015 -77, 071 17, 285 80, 818 2, 317 -23, 350 Load Qty's increased significantly at start of month 7/2/2015 -82, 063 17, 156 80, 460 2, 310 -17, 862 Load Qty's increased significantly at start of month 7/3/2015 -78, 666 14, 569 79, 305 2, 235 -17, 443 Load Qty's increased significantly at start of month 7/4/2015 -75, 163 17, 248 80, 922 2, 277 -25, 283 Load Qty's increased significantly at start of month • Calibration is DAILY calibration and represents the whole Operating Day. • Total Interchange shows increase in net Exports starting 6/28, but have seen in past around that amount • Total load jumped on 7/1 by roughly 15 K MWh with no increase on generation side resulting in large negative calibration amounts. Injection: Import/Generation (-) or Withdrawal: Export/Load (+) David Daniels 18

Settlements – Meter Submittal • Spike in missing meter result of SPP error with Commercial Model • Approximately 130 MDSL’s. This varies as new commercial models are implemented (MDSL’s added/terminated) • Please double check any 7/1 Commercial Model changes – New/terminated Meter Data Submittal Locations (MDSL’s) David Daniels 19

Tagging Exercise Shari Brown 20

Tagging Exercise - Purpose Allow Each MP to ensure that their tagged transactions will be valid beginning October 1 st • Not all transactions were entered during Market Trials • Market Trials tags were not expected to be representative of all Real-Time SPP Business Practices • Numerous Modeling changes have been made during Market Trials causing confusion • Minimize surprises for first Operating Day tag approval processes Shari Brown 21

Tagging Exercise - Overview All MP are expected to participate, regardless of successful tags during Market Trials • Week of August 24 th • Tuesday thru Thursday 8 a. m. to 5 p. m. CST • Pick the best times for your schedulers to participate • MP are not expected to participate every day • SPP staff will evaluate each tag for SPP Business Practice Validations • SPP staff will approve or deny tag • Tag for exercise will not pass to test settlement statements Shari Brown 22

Tagging Exercise - Scenario MP will enter Tags for one operating day in October. SPP ITE will be populated with Real Time TSRs already existing in Production. • Use the same URL as was used for Market Trials • Only one tag of each transaction type is expected • Tag can be for any number of hours. One hour is fine. • No Day Ahead Transaction needed. No Market Section Data • Not necessary to match load expectations • Do not exceed “energy MWs” approved for the TSR Shari Brown 23

Tagging Exercise – Pre-work To allow MP to move through Scenario as easily and quickly as possible, SPP staff will research with each MP any known issues for tags currently entered for Market Trials. Prior to the exercise, SPP staff and MP will work together to: • Verify existence of any and all expected confirmed TSR in ITE • Add and approve any additional TSRs not copied from Production • Determine corrections needed to Market Trial Tags • Determine Physical Path of any transactions not tagged in MT • Determine if MP plans to use any GFA TSR for scheduling Shari Brown 24

SPP Business Practice Validations Verified During Market Trials: • Internal Tags invalid in SPP Integrated Marketplace • Legacy BA invalid if used as GCA/LCA • SPP Market Bid/Offer • SPP Market Entity – Valid customer (MP/AO) on TSR • SPP Market Location – Valid settlement location mapping • Market Loss rules • Market Timing rules Shari Brown 25

SPP Business Practice Validations Ignored Verifications during Market Trials: • Invalid AREF, NERC Priority, Status for TSR used on Tag • Invalid use of Market Import Service • Invalid source/sink, POR/POD, Energy mw relating to TSR • Invalid DC tie Physical Path • Invalid Scheduling Entities • Invalid Tag Physical path connectivity NOTE: These validations will be enforced during Tag Exercise Shari Brown 26

Special Notes: • Unlike during Market Trials, SPP will enforce ALL necessary Business Practice Validations during the Tag Exercise • SPP cannot verify ATC in the ITE system. Be aware that the ATC verification is turned off in ITE, so TSR are not checked for available Transmission like they will be in the real world • Availability of Ramp cannot accurately be checked with so few tags in the ITE. If MP would like to practice Ramp Reservation, this can be arranged via a special training session during the Exercise Week • Recommended but not required, additional Short Term TSR may be entered to experience timing rules. Including but not limited to MIS Service • MP should review the Interchange Scheduling Reference Manual. This may help determine questions that you may want to ask before Go-Live Shari Brown 27

Training Opportunities Amy Casavechia 28

Daylight Savings Time Training Materials Daylight Savings Time Quick Reference Card Req ues LMS t in • Requesting this Training • Login to the SPP Learning Center using this direct link or use the LMS search to search by Title. • Click the “Request” button on the Training Details page. • The system will return you to your transcript where you view the document by clicking the “Launch” button. 29

Reliability Unit Commitment (RUC) Training Computer-Based Training • Reliability Unit Commitment Process – Self-paced (21 Minutes) Training Materials • RUC Education Session Presentation • RUC Education Session FAQ Req ues LMS t in 30

Reliability Unit Commitment (RUC) Training Virtual Instructor-Led Course Commitment Decisions: How Reliability Unit Commitment Works Ø Scenarios to understand RUC processes and commitment decisions Ø 2 VILT sessions offered Ø September 22 (2 -4 pm) Ø November 4 (2 -4 pm) Reg iste LMS r in

Marketplace Symposium Opportunity, Relationships, Value October 7 - 8 at SPP Corporate Campus in Little Rock • Offer 8 -10 sessions per day on current and relevant Integrated Marketplace topics • Include combination of Customer Trainers and Subject Matter Experts delivering sessions • Host an on-site, after-hours event Day One • Registration now open! – $100 fee for non-members

Reminders Michael Hodges 33

CROW – Outage Scheduler • Submit known outages for both generator and transmission outages in CROW • Update – CROW outages will be ported over from Production into the testing environment. Outages only need to be entered into Prod 34

Scheduling: Submitting Tags • IS MPs will need to submit tags in MTE for the entire IS Integrated Market Trials Testing period – MPs will submit tags each week starting the week of May 11 through the week of July 17 • IS MPs will need to submit their tags each week on Tuesday and Wednesday between 1: 00 – 3: 00 CPT for the next day’s DA Process • IS MPs can submit tags for up to 7 days in the future • Submit tags with source/sinks that have been registered • The link to the ITE e-Tag is https: //demo. spp. oati. com/ 35

Scheduling: TSR Approvals Transmission Service Requests (TSR) are submitted through the SPP OASIS (Open Access Same-Time Information System) so eligible transmission customers can request transmission service. • Long Term TSRs will need to be entered into SPP’s MTE environment prior to submitting tags. • If the customer chooses to test short term point-to-point TSR or Market Import Service (MIS); – They can enter those TSRs between 8: 00 and 10: 00 (CST) on Tuesdays and Wednesdays to be approved and ready for test tagging in the afternoon on those days. – The URL to submit your TSRs is https: //demo. oasis. oati. com/ 36

Look-Ahead Michael Hodges 37

Market Trials Extension • At the request of several MPs and with SPP management approval, IS Market Trials have been extended by one week to July 24 • One-time extension – MPs should make preparations to complete any additional testing prior to Market Trials end • MPs are requested to continue submitting data into/SPP will continue to support MTE environment through 7/24 • Settlement Statements: Last Initial/Final will be for OD 7/24; Last Initial Posted 7/31; Last Final Posted 8/7 • MP Readiness Checkpoint – to be held on 7/24 Market Trials Call 38

Look-Ahead… • Friday (7/10): Enter data today for Saturday and Sunday • Friday (7/17): IS Market Trials Meeting (9: 30 – 11: 00 am CST) 39

Important Dates • IS Market Trials in MTE: May 18 – July 24 (MPs Submit Data in MTE) • Deployment and Regulation Qualification Testing: June 1 – July 24 • MP Readiness Checkpoint: Friday, July 24 • Last Settlement Statements Posted: Friday, August 7 th • Go-Live/Cutover: October 1 40

Questions 41