1.0 Introduction. 2.0 General Inquiries. 3.0 Coordination of the Manitoba Hydro OATT

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1 1.0 Introduction This document contains the business practices for scheduling under the Manitoba Hydro Open Access Transmission Tariff (OATT). These practices are intended to supplement the Manitoba Hydro OATT and to the extent that there is a conflict between the Manitoba Hydro OATT and these practices, the OATT will apply. 2.0 General Inquiries For general inquiries regarding the OATT contact: Michael Fones, CET Tariff Administration Officer Transmission Services & Compliance Department Manitoba Hydro Phone (204) mfones@hydro.mb.ca Or Robin Rebillard, P.Eng., M.Sc.E.E. Tariff Administration & Rates Engineer Transmission Services & Compliance Department Manitoba Hydro Phone (204) rrebillard@hydro.mb.ca 3.0 Coordination of the Manitoba Hydro OATT Manitoba Hydro is a coordinating member of the Midcontinent Independent System Operator (Midcontinent ISO or MISO). Transmission customers should be aware that Manitoba Hydro has not implemented an energy market within Manitoba and that MISO provides some tariff coordination services for the Manitoba Hydro Open Access Transmission Tariff (Manitoba Hydro Tariff or MH OATT) for transmission service across Manitoba Hydro as defined by the coordination agreement between Manitoba Hydro and the Midcontinent ISO. Transmission customers will be charged as per the MH OATT. Page 1 of 24

2 4.0 Scheduling Manitoba Hydro scheduling and interchange is controlled by the Manitoba Hydro Electric Board (MHEB) System Operator. The MHEB System Operator uses an electronic scheduler that is driven by the interchange transaction system specified by North American Electric Reliability Corporation (NERC). The electronic scheduler screens the tags and creates schedules for the three MHEB interfaces. It has several automatic validations that it uses to ensure each tag follows the various rules for interchange specified by the Canadian Energy Board and NERC. 4.1 Transmission Service Needed for Dynamic Schedules Transmission Service is needed for the maximum amount of the dynamic schedule that will be used in any hour. Bi-directional services (such as regulation which is expected to flow in both directions) require two reservations, one for the expected utilization amount in each direction). Non-Firm Transmission Service may be used if the dynamic scheduling service is interruptible. 4.2 Scheduling Rules The following is a list of scheduling rules: a) All MHEB transmission service is sold in Eastern Standard Time (EST). b) When a transaction leaves Canada and enters the United States, a National Energy Board (NEB) license/permit number is required in the Contract field on the Generator Balance Authority (GCA) line in the physical path table of the tag. c) A loss calculator is posted on the MHEB Open Access Same-Time Information System (OASIS) page. Transmission Customers scheduling Transmission Service through MHEB shall use the loss calculator to determine the loss repayment required. Losses shall appear on the MHEB column of the Energy and Transmission profile table for each hour of Page 2 of 24

3 4.3 Scheduling Validation The MHEB electronic scheduler performs the following automatic validations on tag elements: a) Energy Profile checks that the Trans MW value on the MHEB OASIS reservation is greater than or equal to the Gen MW on b) Timing checks the tag Pre-confirmed, Queued Time, Start Time and Stop Time parameters. c) Status checks that the Status is Confirmed on the MHEB OASIS reservation corresponding to d) MW checks that MW value on the tag does not exceed the MHEB OASIS reservation MW value. e) Losses for transactions that do not source or sink within Manitoba, this validation checks that the hourly losses identified on the tag are sufficient. Manitoba Hydro posts a loss calculator on their MHEB OASIS site. f) Owner checks that the owner listed on the tag matches the Transmission Customer on the corresponding MHEB TSR. g) NERC Priority checks that the NERC Priority on the tag matches the NERC Priority on the corresponding MHEB OASIS reservation. i) Customer Code checks that the Purchasing/Selling Entities (PSE) listed on same rows as the Transmission Provider (TP) in the physical path on the tag matches the customer code on the corresponding MHEB OASIS reservation. j) Point of Receipt (POR)/Point of Delivery (POD) checks that the initial POR and final POD on the tag match the POR and POD on the corresponding MHEB OASIS reservation. Page 3 of 24

4 k) Recall/Resale verifies that the request type of the corresponding MHEB OASIS reservation is not recall or resale. l) NEB License/Permit checks that the tag contains a valid NEB License/Permit Number in the Contract field on the GCA line in the physical path table of the tag. The PSE listed on the tag must be a NERC registered PSE affiliated with the entity holding the license/permit. m) GCA/Load Balance Authority (LBA) Association checks that MHEB is listed in the correct position in the physical path table on the tag when MHEB is the GCA or LCA. MHEB should be listed first when MHEB is the GCA and last when MHEB is the LCA. n) TP/SE Match checks that MHEB is listed as the SE only on the MHEB TP line in the physical path table of Page 4 of 24

5 4.4 Scheduling Examples Drive-out from MHEB to MISO Transmission Reservations are required under both the MHEB OATT (MHEB Tariff) and the MISO Open Access MISO Open Access Transmission, Energy and Operating Reserve Markets Tariff (TEMT or MISO Tariff). Field MHEB Tariff MISO Tariff TP MHEB MISO POR MHEB MHEB POD MHEB.MISO MISO Source * * Sink * * CA TP PSE POR POD Sched Entities MHEB MHEMA1 MHEB MHEB MHEMA1 MHEB MHEB.MISO MHEB MISO MHEMA1 MHEB MISO MISO MISO MISO MISO Contract Misc Page 5 of 24

6 4.4.2 Drive-In to MHEB from MISO Transmission Reservations are required under both the MHEB and MISO Tariffs. Field MHEB Tariff MISO Tariff TP MHEB MISO POR MHEB.MISO MISO POD MHEB MHEB Source * * Sink * *. CA TP PSE POR POD Sched Entities Contract Misc MISO MISO MISO** MISO MHEMA1 MISO MHEB MISO MHEB MHEMA1 MHEB.MISO MHEB MHEB MHEB MHEMA1 MHEB ** MISO requires a unit specific source. Page 6 of 24

7 4.4.3 Drive-Out from MHEB to Ontario Transmission Reservations are required only under the MHEB Tariff. Field MHEB Tariff TP MHEB POR MHEB POD MHEB.IMO Source * Sink * CA TP PSE POR POD Sched Entities MHEB MHEMA1 MHEB MHEB MHEMA1 MHEB MHEB.IMO MHEB MISO MHEMA1 MHEB MH-ONT MISO ONT MHEMA1 ONT.IMPORT.WHITESHELL.PS ONT ONT ONT MHEMA1 ONT Contract Misc Page 7 of 24

8 4.4.4 Drive-out from MHEB to Saskatchewan on southern interface Transmission Reservations are required under the MHEB Tariff and the Saskatchewan Power Corporation () Tariff. Field MHEB Tariff Tariff TP MHEB POR MHEB See Tariff POD See Tariff Source * * Sink * * CA TP PSE POR POD Sched Entities Contract Misc MHEB MHEMA1 MHEB MHEB MHEMA1 MHEB MHEB MISO MHEMA1 MHEB MISO MHEMA1 MH.230kV MHEMA1 Page 8 of 24

9 4.4.5 Drive-In to MHEB from Saskatchewan on southern interface Transmission Reservations are required under the MHEB Tariff and the Tariff. Field MHEB Tariff Tariff TP MHEB POR Tariff POD MHEB Tariff Source * * Sink * * CA TP PSE POR POD Sched Entities NRTPNT External POR ** MH.230 MISO MHEMA1 MHEB MISO MHEB MHEMA1 MHEB MHEB MHEB MHEMA1 MHEB ** External POR - correct POR from the external system Contract Misc Page 9 of 24

10 4.4.6 Drive-through MHEB Island Falls Agreement Transmission Reservations are required under both the MHEB and Tariffs. Field MHEB Tariff TP MHEB POR MH- POD MH- Source * Sink * The Island Falls Agreement is a pre-oatt agreement (sometimes referred to as a grandfathered agreement) thus no MISO losses are required on MISO must be included as a Transmission Provider in the transmission path as in the physical path below. The pseudo TSR number MISO S/A must be included in the transmission profile. CA TP PSE POR POD Sched Entities Contract Misc NRPTRT(1) Source: MISO MHEB MISO MHEB MHEB MH- MH- MHEB MISO MHEB MISO MH.230 Sink: Page 10 of 24

11 4.4.7 Saskatchewan southern interface Drive-In to MHEB/MISO Footprint - Wheel for MHEB Transmission Reservations are required under the MHEB, MISO and Tariffs. Field Tariff MHEB Tariff MISO Tariff TP MHEB MISO POR Tariff MHEB POD Tariff MHEB.MISO MISO Source * * * Sink * * * CA TP PSE POR POD Sched Entities Contract NRPTRT EPE-XX NRPTRT QEPS MH.230 MHEB NRPTRT MHEB.MISO MHEB MISO NRPTRT MHEB MISO MISO MISO MISO MISO Misc Page 11 of 24

12 4.4.8 Saskatchewan southern interface Drive-Out of MHEB/MISO Footprint - Wheel for MHEB Transmission Reservations are required under the MHEB, MISO and Tariffs. Field Tariff MHEB Tariff MISO Tariff TP MHEB MISO POR Tariff MHEB.MISO MISO POD Tariff MHEB Source * * * Sink * * * CA TP PSE POR POD Sched Entities MISO MISO MISO** MISO NRPTRT MISO MHEB MISO MHEB NRPTRT MHEB.MISO MHEB NRPTRT MH.230 NRPTRT ** MISO requires a unit specific source. Contract Misc Page 12 of 24

13 4.4.9 Ontario Drive-In MHEB/MISO Footprint - Wheel for MHEB Transmission Reservations are required under both the MHEB and MISO Tariffs. OASIS requests Field MHEB Tariff MISO Tariff TP MHEB MISO POR MHEB.IMO MH-ONT POD MHEB.MISO MISO Source * * Sink * * ** Source & Sink on Transmission Reservations shall match the source and sink on Above and below the MHEB TP row, MISO is entered as the TP and in the Sched Entities column in the physical path table of The MISO POR MH-ONT can be on the tag only once, so as not to double the energy MW value of the tag from MISO s perspective. Only MHEB losses are required on CA TP PSE POR POD Sched Entities Contract ONT ONT EPE-XX ONT ONT ONT.EXPORT.WHITESHELL.PS ONT MISO MH-ONT MHEB MISO MHEB MHEB.IMO MHEB.MISO MHEB MISO MHEB MISO MISO MISO MISO MISO Misc Page 13 of 24

14 Drive-Through from Saskatchewan (southern interface) to Ontario - Wheel for MHEB Transmission Reservations are required under the MHEB, MISO and Tariffs. Field Tariff MHEB Tariff MISO Tariff TP MHEB MISO POR Tariff POD Tariff MHEB.IMO MH-ONT Source * * * Sink * * * CA TP PSE POR POD Sched Entities NRPTRT NRPTRT QEPS MH.230 MHEB NRPTRT MHEB.IMO MHEB MISO NRPTRT MH-ONT MISO ONT NRPTRT ONT.IMPORT.WHITESHELL.PS ONT ONT ONT NRPTRT ONT Contract Misc Page 14 of 24

15 MISO Spot Market Sourcing in Manitoba A Transmission Reservation is required under the MHEB and MISO Tariffs, and a spot market reservation is required under the MISO Tariff. Field MHEB Tariff MISO Tariff TP MHEB MISO POR MHEB MHEB POD MHEB.MISO MISO Source * * Sink * * CA TP PSE POR POD Sched Entities Contract Misc MHEB MHEMA1 MHEB MHEB MHEMA1 MHEB MHEB.MISO MHEB EPE-XX MISO MHEMA1 MHEB MISO MISO MISO MISO MISO Page 15 of 24

16 MISO Spot Market Sourcing in Saskatchewan (southern interface) Transmission Reservations are required under the MHEB, MISO and Tariffs, and a spot market reservation is required under the MISO Tariff. Field MHEB Tariff MISO Tariff TP MHEB MISO POR POD MHEB.MISO MISO Source * * Sink * * CA TP PSE POR POD Sched Entities MISO MHEB MHEB MHEB.MISO MHEB MISO MISO MISO MISO Contract Misc Page 16 of 24

17 Drive-out from MHEB to Saskatchewan on northern interface Transmission Reservations are required under the MHEB Tariff and the Saskatchewan Power Corporation () Tariff. Field MHEB Tariff Tariff TP MHEB POR MHEB See Tariff POD MHEB.IF See Tariff Source * * Sink * * CA TP PSE POR POD Sched Entities Contract Misc MHEB SOURCE: MHEB MHEB MHEB MHEB.IF MHEB MISO MHEB MISO MH.115 IFSS SINK: -N Page 17 of 24

18 Drive-In to MHEB from Saskatchewan on northern interface Transmission Reservations are required under the MHEB Tariff and the Tariff. Field MHEB Tariff Tariff TP MHEB POR MHEB.IF Tariff POD MHEB Tariff Source * * Sink * * CA TP PSE POR POD Sched Entities Contract Misc MHEB SOURCE: -N IFHS MH.115 MISO MHEB MISO MHEB MHEB.IF MHEB MHEB SINK: MHEB Page 18 of 24

19 Drive-through MHEB from Saskatchewan on southern interface to Saskatchewan on northern interface Transmission Reservations are required under both the MHEB and Tariffs. Field MHEB Tariff TP MHEB POR POD MHEB.IF Source * Sink * Above and below the MHEB TP row, MISO is entered as the TP and in the Sched Entities column in the physical path table of the tag, with non-tsr reference MISO S/A listed for MISO s Transmission Allocation. The pseudo TSR number MISO S/A must be included in the transmission profile. CA TP PSE POR POD Sched Entities Contract Misc SOURCE: QEPS** MH.230 MISO MHEB MISO MHEB MHEB.IF MHEB MISO MHEB MISO MH.115 IFSS SINK: -N ** - The POR from may be other PORS, not just QEPS. Page 19 of 24

20 Drive-through MHEB from Saskatchewan on northern interface to Saskatchewan on southern interface Transmission Reservations are required under both the MHEB and Tariffs. Field MHEB Tariff TP MHEB POR MHEB.IF POD Source * Sink * Above and below the MHEB TP row, MISO is entered as the TP and in the Sched Entities column in the physical path table of the tag, with non-tsr reference MISO S/A listed for MISO s Transmission Allocation. The pseudo TSR number MISO S/A must be included in the transmission profile. CA TP PSE POR POD Sched Entities Contract Misc SOURCE: -N IFHS MH.115 MISO MHEB MISO MHEB MHEB.IF MHEB MISO MHEB MISO MH.230 SINK: Page 20 of 24

21 Saskatchewan northern interface Drive-Out from MHEB/MISO Footprint - Wheel for MHEB Transmission Reservations are required under the MHEB, MISO and Tariffs. Field Tariff MHEB Tariff MISO Tariff TP MHEB MISO POR Tariff MHEB.MISO MHEB POD Tariff MHEB.IF Source * * * Sink * * * Above and below the MHEB TP row, MISO is entered as the TP and in the Sched Entities column in the physical path table of the tag, with non-tsr reference MISO S/A listed for MISO s Transmission Allocation. The pseudo TSR number MISO S/A must be included in the transmission profile. CA TP PSE POR POD Sched Entities MISO MISO** MISO MISO MHEB MISO MHEB MHEB.MISO MHEB.IF MHEB MISO MHEB MISO MH.115 IFSS SINK: -N ** MISO requires a unit specific source. Contract Misc Page 21 of 24

22 Saskatchewan northern interface Drive-In to MHEB/MISO Footprint - Wheel for MHEB Transmission Reservations are required under the MHEB, MISO and Tariffs. Field Tariff MHEB Tariff MISO Tariff TP MHEB MISO POR Tariff MHEB.IF POD Tariff MHEB.MISO MISO Source * * * Sink * * * Above and below the MHEB TP row, MISO is entered as the TP and in the Sched Entities column in the physical path table of the tag, with non-tsr reference MISO S/A listed for MISO s Transmission Allocation. The pseudo TSR number MISO S/A must be included in the transmission profile. CA TP PSE POR POD Sched Entities SOURCE: -N IFHS MH.115 MISO MHEB MISO MHEB MHEB.IF MHEB.MISO MHEB MISO MHEB MISO MISO MISO MISO Contract Misc Page 22 of 24

23 Drive-Through from Ontario to Saskatchewan (northern interface) - Wheel for MHEB Transmission Reservations are required under the MHEB, MISO and Tariffs. Field Tariff MHEB Tariff MISO Tariff TP MHEB MISO POR Tariff MHEB.IMO MH-ONT POD Tariff MHEB.IF Source * * * Sink * * * Above and below the MHEB TP row, MISO is entered as the TP and in the Sched Entities column in the physical path table of the tag, with non-tsr reference MISO S/A listed for MISO s Transmission Allocation. The pseudo TSR number MISO S/A must be included in the transmission profile. CA TP PSE POR POD Sched Entities ONT SOURCE: ONT_W ONT ONT ONT.IMPORT.WHITESHELL.PS ONT MISO MH-ONT MHEB MISO MHEB MHEB.IMO MHEB.IF MHEB MISO MHEB MISO MH.115 IFSS SINK: N Contract Misc Page 23 of 24

24 Drive-Through from Saskatchewan (northern interface) to Ontario - Wheel for MHEB Transmission Reservations are required under the MHEB, MISO and Tariffs. Field Tariff MHEB Tariff MISO Tariff TP MHEB MISO POR Tariff MHEB.IF POD Tariff MHEB.IMO MH-ONT Source * * * Sink * * * Above and below the MHEB TP row, MISO is entered as the TP and in the Sched Entities column in the physical path table of the tag, with non-tsr reference MISO S/A listed for MISO s Transmission Allocation. The pseudo TSR number MISO S/A must be included in the transmission profile. CA TP PSE POR POD Sched Entities SOURCE: -N IFHS MH.115 MISO MHEB MISO MHEB MHEB.IF MHEB.IMO MHEB MISO MHEB MH-ONT MISO ONT ONT.IMPORT.WHITESHELL.PS ONT ONT ONT SINK: ONT_W Contract Misc Page 24 of 24