SOSS, System Control Centre NSSS, System Control Centre

TEMPORARY OPERATING INSTRUCTION No. 15-287

MISO N O.O. File No. 240802 15-13200-MELT o 1-09743365 .

Name of Outage: 115 kV Line MR11 (Brandon Victoria – 115 kV Switch MR11_2) 2015-12-16 from 1300 to 1700 CST Effective Dates: (2015-11-24 from 1200 to 1600 EST) Standing Guide Reference: MH-SPC Standing Guide

System Use "System Intact" values for MH-SP transfer limits (export and import ) during outage of MR11 Posturing section from Brandon Victoria to 115 kV Switch MR11_2.

MR11 performs adequate network support while Raven Lake to Minnedosa sections remain on- line. Further study by System Performance may be required before the line is removed from service.

Description of Work: Ice Melt MR11 from Brandon Victoria to Minnedosa District switch MR11_2. TRANSFER Limits:

MH-SPC West (MH Export) SOL: 225 Schedule Limit 150 TTC Transfer OM Location RM (SOL) Firm Non-Firm Schedule Limit West 225 0 225 75 150 0 150

MH-SPC East (MH Import) SOL: 75 Schedule Limit 0 TTC RM Transfer OM Location (SOL) Firm Non-Firm Schedule Limit East 75 0 75 75 0 0 0

MISO RC T

INFO I T M I I L M

R R C O D L L S

S E T T C

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System Intact D F MH-SPC_West (MH TEMPORARY OPERATING INSTRUCTION No. 15-287

MISO Webtool Manual Override is Required

Non- MISO Webtool Firm Firm Postings TTC TRM TRM Coeff MH_SPC _West (Export) 225 75 75 1.000 MH_SPC_East (Import) 75 75 75 1.000

Special TOI Extensions - This TOI may be extended until 23:59 by performing the following steps: Instructions: 1. Verify system conditions to confirm there are no additional tie line facilities outages, or new internal MH outages. 2. Review RTCA to confirm there are no new contingencies. 3. Contact MISO to confirm there are no new outages, if there are no new outages provide notice to MISO that MH is extending the TOI. 4. Extend the outage in COLA. 5. Update TLAP outage table. 6. Provide notice to affected balancing authorities

Prepared By: P.Mahal Date: 2015.12.16

Copies to: SOSS, System Control Centre NSSS, System Control Centre GSSS, System Control Centre GSO, System Control Centre MHEB OASIS MISO – St. Paul

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