CIL/CEL Values and Study Timeline

Transcription

1 CIL/CEL Values and Study Timeline LOLEWG 9/11/2018 Updated 10/3/2018 1

2 Purpose and Key Takeaways Purpose Inform stakeholders of Draft Capacity Import and Export Limits. Key Takeaways (Limit changes) Limits have been impacted by the FERC Locational filing changes (MISO process change). Limits have been impacted by MISO system changes including transmission topology and generation dispatch. 2

3 Introduction Capacity Import and Export Limits (CIL and CEL) in this presentation are calculated based on the FERC Locational filing. The CIL and CEL results have been adjusted for exports to non- MISO load. Coordinating Owner Resources and Border External Resources are no longer treated as imports and instead treated as internal to the zone which impacts base area interchange. CIL/ZIA for LRZs 1, 2, 3 and 4 along with CEL/ZEA for LRZs 4 and 5 have all been updated as of 10/03/18. 3

4 Capacity Import Limits Zone ZIA 1 (MW) CIL 1 (MW) CIL 2 (MW) Import in Auction 1 3,747 4,078 4,546 Export 2 1,713 1,713 2, ,813 3,037 2,812 Export 4 3 5,210 6,845 6,278 1, ,013 5,013 3, ,924 7,066 7,375 Export 7 3 3,211 3,211 3, ,185 4,424 4,778 Export 9 3,631 3,950 3,679 1, ,792 3,906 2, Limits based on revisions made to the new Locational Tariff filing 2 Limits after applying changes due to December 31, 2015 FERC Order on exports 3 Denotes voltage limited transfers 4

5 Planning Year ( ) CIL Results

6 Capacity Import Limits Zone 1: MN and ND Limit: 4,078 MW Colby to North Iowa Wind 161 kv Line Adams to Barton 161 kv Line Re-dispatch of 1,992 MW applied 10/3 update: Added two expedited ComEd projects that we not included in the regional model Final Limiting Element: Sherman Street to Sunnyvale 115 kv Final Contingency: Arpin to Rocky Run 345 kv 6

7 Capacity Import Limits Zone 2: WI and MI Limit: 1,713 MW University Park to East Frankfort 345 kv Line Dumont to Wilton 765 kv Line Re-dispatch of 2,000 MW applied 10/3 update: Added two expedited ComEd projects that we not included in the regional model No change in limiting element or contingency 735 kv 345 kv Limiting Element 7

8 Capacity Import Limits Zone 3: IA Limit: 3,037 MW Sub 3458 to Sub kv Line Sub 3455 to Sub kv Line Mitigation of the initial limiting element as an RCF flowgate 10/3 update: Added two expedited ComEd projects that we not included in the regional model Re-dispatch of 2,000 MW applied No change in limiting element or contingency 8

9 Capacity Import Limits Zone 4 IL: Voltage Constraint Limit: 5,489 MW Limiting Voltage Element: Hallock138 kv Bus Limiting Contingency: Clinton unit Voltage constraint is more limiting than thermal constraint 10/3 update: A TO submitted a model correction that was applied after the 9/11/18 meeting that impacted this limit 345 kv Limiting Element 9

10 Capacity Import Limits Zone 5: MO Limit: 5,013 MW Heritage to Fredtown 161 kv Line Lutesville to St. Francois 345 kv line Redispatch of 1,820 MW applied Final Limiting Element: Joppa TS 345/161 kv Autotransformer Final Contingency: Shawnee 500/345 kv Auto- Transformer Line 500 kv 345 kv 230 kv Limiting Element 10

11 Capacity Import Limits Zone 6: IN and KY Limit: 7,066 MW Benton 345/138 kv Auto Transformer ckt. 1 Benton to Cook 345 kv Auto- Transformer Re-dispatch of 2,000 MW applied Final Limiting Element: Paradise to BRTAP 161 kv Final Contingency: Volunteer to Phillips B 500 kv Line 500 kv 345 kv Limiting Element 11

12 Capacity Import Limits Zone 7 MI: Voltage Constraint Limit: 3,211 MW Limiting Voltage Element: Pioneer 120 kv Bus Limiting Contingency: Wayne to Monroe 345 kv Line Voltage constraint is more limiting than thermal constraint 345 kv Limiting Element 12

13 Capacity Import Limits Zone 8: AR Limit: 4,424 MW Colonial Orange to Cow 138 kv Line Sabine to Cow 138 kv Line Re-dispatch of 2,000 MW applied Final Limiting Element: Moonlake to Ritchie 230 kv Line Final Contingency: Cordova TN to Benton MS 500 kv Line 500 kv Limiting Element 13

14 Capacity Import Limits Zone 9: TX and LA Limit: 3,950 MW Ray Braswell to Franklin 500 kv Line Franklin to Grand Gulf 500 kv Line Re-dispatch of 2,000 MW applied Final Limiting Element: Sterlington to Downsville 115 kv Line Final Contingency: Mt. Olive to El Dorado 500 kv Line 500 kv Limiting Element 14

15 Capacity Import Limits Zone 10: MS Limit: 3,906 MW Cow to Colonial Orange 138 kv Line Sabine to Cow 138 kv Line Re-dispatch of 2,000 MW applied Final Limiting Element: Freeport to Twinkletown 230 kv Line Final Contingency: Freeport to Hornlake 230 kv Line 500 kv 230 kv Limiting Element 15

16 Capacity Export Limits Zone ZEA 1 (MW) CEL 1 (MW) CEL (MW) Export in Auction 1 3,379 3, ,017 Import 3 4,664 4,440 5, ,332 3,693 4,280 Import 5 2 2,122 2,122 2,122 Import 6 1,577 1,435 3, ,358 1,358 2,578 Import 8 5,328 5,089 2,424 2, ,224 1,905 2,149 Import 10 1,721 1,607 1,824 Import 1 Limits based on revisions made to the new Locational Tariff filing 2 Limits determined as the excess capacity in the zone. It is the difference between maximum available generation in that zones and the total generation dispatched. 16

17 Planning Year ( ) CEL Results

18 Capacity Export Limits Zone 1: MN and ND Limit: 3,048 MW New Ulm South to New Ulm 69 kv Line System Intact Re-dispatch of 400 MW GLT applied Final Limiting Element: Seneca to Gran Grae 161 kv Line Final Contingency: Arpin to Eau Claire 345 kv Line 345 kv Limiting Element 18

19 Capacity Export Limits Zone 2: WI and MI Limit: 979 MW Wempletown 345/138 kv autotransformer Cherry Valley 345/138 kv autotransformer Cherry Valley 138/34.5 kv autotransformer Cherry Valley 2M to Cherry Valley B 138 kv Line Re-dispatch of 1,208.5 MW GLT applied No change in limiting element or contingency post re-dispatch 345 kv 230 kv Limiting Element 19

20 Capacity Export Limits Zone 3: IA Limit: 4,440 MW Sub P Iowa City 161/69 kv auto-transformer Final Contingency: System Intact GLT applied Final Limiting Element: Fargo 345/138 kv Auto- Transformer Final Contingency: Mapleridge to Tazewell 345 kv Line 345 kv Limiting Element 20

21 Capacity Export Limits Zone 4: IL Limit: 3,693 MW Pontiac to Brokaw 345 kv Line Pontiac to Bluemond 345 kv Line Re-dispatch of 350 MW applied GLT applied Implemented two expedited ComEd projects that we not initially submitted No change in limiting element or contingency post re-dispatch 345 kv 230 kv Limiting Element 21

22 Capacity Export Limits Zone 5: MO Limit: 2,122 MW A valid constraint was not found. Initially, Capacity Export Limit was determined as the sum of the Base Area Interchange and the excess capacity in LRZ 5. This was discussed at the 9/11/18 LOLEWG and the 9/12/18 RASC meetings and it was agreed that without any major changes from last year within LRZ 5, the previous limits would be utilized. 22

23 Capacity Export Limits Zone 6: IN and KY Limit: 1,435 MW GLT Applied Final Limiting Element: University Park to East Frankfort 345 kv Line Final Contingency: Dumont to Wilton 765 kv Line 500 kv 345 kv Limiting Element 23

24 Capacity Export Limits Zone 7: MI Limit: 1,358 MW University Park to East Frankfort 345 kv Line Dumont to Wilton 765 kv Line Re-dispatch of 1,400 MW applied No change in limiting element or contingency post re-dispatch 345 kv 230 kv Limiting Element 24

25 Capacity Export Limits Zone 8: AR Limit: 5,089 MW Catherine U4 to Arklahoma 115 kv Line System Intact GLT Applied Final Limiting Element: Russelville South to Dardanelle 161 kv Line Final Contingency: Arkansas Nuclear to Fort Smith 500 kv Line 500 kv Limiting Element 25

26 Capacity Export Limits Zone 9: TX and LA Limit: 1,905 MW Addis to Tiger 230 kv Line Formosa to Enco kv Line Re-dispatch of 800 MW applied Final Limiting Element: Addis to Tiger 230 kv Final Contingency: Dowmeter to Chenango 230 kv 500 kv 230 kv Limiting Element 26

27 Capacity Export Limits Zone 10: MS Limit: 1,607 MW Batesville to Tallahachie 161 kv Line Choctaw to Clay 500 kv Line Re-dispatch of 100 MW applied GLT Applied No change in limiting element or contingency post re-dispatch 230 kv Limiting Element 27

28 Next Steps Next steps These results are final. However, if any updates are deemed necessary, a conference call will be scheduled to discuss the revision. Results will be incorporated into the LOLE report 28