Interchange Scheduling Reference Manual

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Interchange Scheduling

Reference Manual

Effective October 1, 2015

Version 3.0

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Southwest Power Pool, Inc. Revision History

Revision History

Date or Version

Number Author Change Description

9/12/2012

Version 1.0 Shari Brown Initial Creation of Draft 10/09/2012

Version 1.0 Shari Brown Formal Draft for internal review and comments and edits from staff

10/18/2012 Version 1.0

Shari Brown Completed Internal review and edits from Operations Market staff

1/28/2013 Version 1.0

Shari Brown Added Market Import Service Info added examples for Ramp Reservation System and cleaned up references for publication

2/1/2013 Version 1.0

Shari Brown Official Publication

11/13/2013 Version 1.0

Shari Brown Revised for Protocol and BP changes as well as for EES move to MISO

2/12/2014 Version 1.0

Shari Brown Revised for additional of Marketplace Tagging HUB

5/28/2014 Version 1.0

Shari Brown Revised for helpful hint for OASIS links on Scenario Analyzer and EFFATC reports

9/4/2014 Version 1.1

Shari Brown Revised for changes made since beginning of Marketplace

4/21/2015 Version 2.0

Shari Brown Added (and enhanced) information from the Ramp Reservation User Guide. Added references to Transmission Service

Reference Manual. Made clarifications to tags submitted for time changes.

10/1/2015 Version 3.0

Shari Brown Added change due to Implementation of the IS Integration into SWPP footprint

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Southwest Power Pool, Inc. Table of Contents

1 Introduction

1.1 Purpose of the Interchange Scheduling Reference Manual

The purpose of the Interchange Scheduling Reference Manual is to provide Transmission Customers and Market Participants (TC/MP) information on the business rules that are to be followed when scheduling with the SPP Balancing Authority and the Integrated

Marketplace. Additionally, this document will allow the TC/MP the information necessary to assist them in determining if there are system changes related to Scheduling that they must make within their own companies. This document is a reference manual only and is not an official SPP Governing Document.

1.2 Related/Referenced Documents

• _{SPP Balancing Authority Operations Manual}

• _{SPP Open Access Transmission Tariff Business Practices SPP Criteria}

• _{Integrated Marketplace Protocols}

• _{SPP Open Access Transmission Tariff}

• _{Transmission Service Reference Manual}

NOTE: For Real-Time Scheduling Questions contact the Tariff/Interchange Desk at (501) 614-3358.

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Southwest Power Pool, Inc. Registration for SPP Interchange Scheduling

2 Scheduling Overview

2.1 Interchange Scheduling

Interchange is Energy transfers that cross Balancing Authority boundaries. An Interchange Transaction is an agreement to transfer Energy from a seller to a buyer that crosses one or more Balancing Authority Area boundaries.

Interchange Scheduling in the Integrated Marketplace includes tagged Energy transactions that cross into, out of and through the SPP Balancing Authority Area. The SPP Integrated Marketplace boundary is the same footprint as the SPP BAA.

Interchange Scheduling does not include tagging or scheduling transactions internal to the SPP Balancing Authority. These types of transactions are usually associated with Grandfathered Transmission Service and bilateral agreements between SPP members or internal to SPP members. SPP has included a process within the Market Settlement to manage these types of transactions through the use of Bilateral Settlement Schedules. Market Participants may optionally use Bilateral Settlement Schedules to account for the impact of these internal transactions on Integrated Marketplace settlement. Tags are not allowed for transactions within the Integrated Marketplace.

2.2 Interchange Authority (IA)

The Interchange Authority is the responsible entity that authorizes implementation of valid and balanced Interchange Schedules between Balancing Authority Areas and ensures communication of Interchange Information for Reliability assessment purpose. SPP is registered with NERC to perform these IA functions for the SPP Reliability Coordination Region. NERC allows registered IAs to have a third party service provide these services and SPP has contracted with a registered Tagging Authority for use of its systems. These systems perform the duties as described in the Interchange (INT) standards. SPP receives a monthly report from its contracted Tagging Authority for evidence of these requirements, which SPP then evaluates.

SPP will investigate any failures to any of the designated requirements listed in the report. Investigations will be documented, and if deemed necessary, reported to NERC.

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Southwest Power Pool, Inc. Registration for SPP Interchange Scheduling 2.2.1 Scheduling Systems

Most scheduling tools used by SPP fall within the responsibility of the Interchange Authority function. The following is a list of the electronic tools that SPP uses to accomplish Interchange Scheduling Processing:

• _{NAESB Electronic Interchange Registry (EIR) – discussed in section}_{3 - Registration for}

SPP Interchange Scheduling

• _{Open Access Same Time Information System (OASIS) – discussed in section}_{4 -}

Transmission Service for Interchange Scheduling

• _{Ramp Reservation System (RRS) – discussed in section}_{5 - Ramp Reservation for}

Interchange Scheduling

• _{Electronic Tagging (e-Tag) – discussed in section}_{6 - Tagging Interchange Transactions}

• _{Electronic Scheduling System (webTrans) – discussed in section}_{7 – Scheduling}

Interchange Transactions

2.3 Balancing Authority (BA)

SPP is the sole registered Balancing Authority (BA) for the SPP Integrated Marketplace footprint. As such, SPP acts as a Balancing Authority for confirmation and verification, approval or denial of all Interchange Schedules entering and/or leaving the SPP Balancing Authority Area (BAA). “SWPP” is the GCA and/or LCA and Scheduling Entity (SE) for all Interchange Schedules entering and/or leaving the SPP BAA as appropriate. As such, SPP has specific roles and responsibilities for NERC checkout processes that are associated with these entities.

NOTE: See Appendix B: Tagging Examples, for examples of properly completed Tag Physical

Path section of e-Tags. These allow for proper checkout with the appropriate entities. GCA and LCA require active approvals prior to implementation of a tag. See section 7.4 Validation of Tags for SPP Balancing Authority.

2.4 Transmission Service Provider (TP)

SPP is the Transmission Service Provider under the SPP OATT. SPP is registered with the acronym “SWPP” for TP. When SWPP Transmission Service is used, SPP Operators act as a TP for confirmation and verification, approval, or denial of all Interchange Schedules entering and/or leaving the SPP Balancing Authority Area.

Beginning for Operating Day October 1, 2015, SWPP will also be the TP/TSP for the WAUW Balancing Authority located in WECC. Since, WAUW will continue to be a Balancing Authority SWPP will not be the Interchange Authority or Scheduling party for WAUW “only”

transactions. SWPP will only act on e-tags as the Transmission Provider. WAUW will continue to perform all Interchange and scheduling responsibilities.

TP requires active approval prior to implementation of a tag. See section 7.3 Validation of Tags for SPP Tariff.

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2.5 Purchase and Selling Entity (PSE)

The Purchasing and Selling Entity (PSE) has various roles in the tagging of schedules for use in the Integrated Marketplace for SPP. The PSE that creates the tag is the Creating Purchase and Selling Entity (CPSE) and may or may not be the same PSE that used as the Transmission Customer that settles with SPP for the Marketplace transaction. The example below shows a PSE that is also the SPP Transmission Customer. Transmission Customers are discussed in section 3 - Registration for SPP Interchange Scheduling.

PSE as a Transmission Customer on Tag highlighted in YELLOW

Tag Physical Path

EXAMPLE: EXPORT

Source AECC01 AECC.FULTON

GCA/LCA TP PSE POR POD S/E

SWPP SWPP AECC01 CSWS EES SWPP

EES ENTEMO CSWS EES MISO

MISO Sink ENTEMO ENTEMO

2.6 Process Overview for Interchange Scheduling

SPP follows NAESB requirements for Interchange Scheduling in the Integrated Marketplace. The general overall process for Scheduling is as follows:

1. Registration with NAESB and SPP for ability to create Transmission Service

reservations, create tags, and participate in the SPP Integrated Marketplace – discussed in section 3 - Registration for SPP Interchange Scheduling

2. Completed and confirmed Transmission Service must be available for ultimate tagging

of the schedule – discussed in section 4 - Transmission Service for Interchange Scheduling as well as the Transmission Service Reference Manual

3. Completed and approved Ramp Reservation (Optional) – discussed in section 5 - Ramp

Reservation for Interchange Scheduling

4. Completed e-Tag – All Interchange Transactions entering and/or leaving the SPP BAA

must be electronically tagged, except in emergencies - discussed in section 6 - Tagging Interchange Transactions

5. Verified and Approved e-Tags – discussed in section 7.5 Validation of Tags for Integrated Marketplace

6. Communicate implemented Interchange Schedule to Interchange Authority

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Southwest Power Pool, Inc. Registration for SPP Interchange Scheduling General Process for Interchange Scheduling in SPP

2.7 SPP Balancing Authority Area and Neighboring Balancing

Authorities

For Interchange Scheduling, it is helpful to know the SPP BAA boundaries. SPP operates in the Eastern Interconnection. SPP is bounded by the following first tier Eastern Interconnection Balancing Authorities. All Energy scheduled between SPP and other Eastern Interconnection BAs must interface through the first tier BAs listed below.

The Eastern Interconnection first tier neighboring BA are: • _{Associated Electric Cooperative, Inc. (AECI)}

• _{Southwest Power Administration (SPA)}

• _{Midwest Independent Service Organization (MISO) for (AMRN, CLEC, EES and MEC)}

SPP is located on the Western edge of the Eastern Interconnection and is the major scheduling connection for Energy scheduled to and from the Western Interconnection (WECC) and the ERCOT Interconnection. All scheduling with the WECC and ERCOT must be accomplished via HVDC tie scheduling. See section 6.7 HVDC Ties.

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1. EDDY

2. BLKW

3. LAMAR

4. SYDNEY

5. RAPID CITY EAST

6. STEGALL

The HVDC ties between ERCOT and SPP are:

1. ERCOTN

2. ERCOTE

The HVDC tie between Canada and SPP is: SASKATCHEWAN

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Southwest Power Pool, Inc. Registration for SPP Interchange Scheduling 3.

3 Registration for SPP Interchange Scheduling

In order for a Transmission Customer to obtain Transmission Service and create Interchange Transactions that enter and/or leave the SPP BAA for use in the Integrated Marketplace, the customer must have completed Market Registration through the SPP Customer Relations process.

REFERENCE: Transmission Service Reference Manual

These customers must also have completed registry with the NAESB in order to tag

transactions using Electronic Tagging systems. Customers must allow time for the registration approval and system integration process prior to commencing Interchange Scheduling

transactions.

3.1 NAESB Electric Industry Registry (EIR)

The EIR is set up for Balancing Authorities to have approval rights for all transaction entities that plan to schedule with their BA. All PSE, TOP, GOP, Sources, Sinks, etc. must be registered and approved by the SPP BA prior to commencing Interchange Scheduling.

Purchasing Selling Entities (SPP Market Participants) must register their OASIS entity code and tagging code with EIR in order to purchase transmission and create tags in the SPP BA and Integrated Marketplace.

The OASIS entity code is shown as the Company Name on the Transmission Service reservation. The Tagging code is shown on the tag in various locations. One of the major components on a tag for market settlements is the Transmission Customer associated with SPP Transmission Service. The Creating Purchasing Selling Entity (CPSE) is the entity that created the e-Tag and the Transmission Customer is the PSE (not necessarily the same as the CPSE) entity shown as the owner of the SPP transmission under the transmission allocation section of the tag.

3.1.1 SPP Market Registration

SPP Transmission Customers who intend to transact business with the SPP BA and Integrated Marketplace must register through the SPP Customer Relations Market Registration process. Through the SPP Market Portal, Market Participants (MPs) may access the applications that enable submission of Resource Offers, Demand Bids, and Virtual Bids and Offers into the Energy and Operating Reserve Markets.

REFERENCE: Market Protocols section 6.1 Registration of Resources

3.2 Commercial Model Changes

Whenever a Market Participant registers assets (resources, loads, etc.,) the SPP Commercial Model must be updated. SPP periodically uploads the model data up to one week prior to the effective date. The new data is available for use on the date that the new model is effective. An

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Southwest Power Pool, Inc. Registration for SPP Interchange Scheduling Asset Owner would not be allowed to tag against the newly updated data (e.g. resources or loads) for a transaction that flows before the effective date.

When data is removed from the Commercial Model, it is deactivated the day before the Commercial Model change. This may take up to seven days to take effect.

The Commercial Model determines the financial Market relationships for Market Participants and Asset Owners. Transmission Customers (PSE) are mapped to these entities in the

Commercial Model.

The Commercial Model describes how these financial entities relate to specific nodes. REFERENCE: Market Protocols section 4.5.2. Commercial Model

3.2.1 Settlement Locations

Sources and Sinks on e-Tags are mapped to Settlement Locations. These Settlement Locations determine the Transmission Congestion pricing mechanisms.

Settlement of all Energy related to schedules into, out of and through the SPP BA is performed as part of the Integrated Marketplace settlement at External Interface Settlement Locations. These External Interface Settlement Locations are pre-determined through off-line analysis and may consist of one or more Pnodes (which are linked to Nodes in the Network Model) In the following example of a Through Transaction, the Interface Settlement Locations for this tagged transaction and the entry of the Energy into the Marketplace through MISO is settled as an injection at the MISO External Interface Settlement Location and by the exit of the Energy out of the Marketplace through ERCO is settled as a withdrawal at the ERCOT N External Interface Settlement Location. The interfaces are shown in yellow. In this situation, since the tag is a Through Transaction, the system uses a combination of the Source PSE/Source data field identification of the interface “in” and a combination of the Sink PSE/Sink data field for identification of the interface “out”.

REFERENCE: Refer to section 6.3.3 for more information about Through Transactions. External Source and Sinks for Mapping Table

PHYSICAL PATH SECTION OF E-TAG

EXAMPLE: THROUGH/HVDC TAG

Source MISO MISO

MISO MISO PSE-ID CIN CSWS MISO

SWPP PSE-ID AMRN SPS SWPP

SWPP PSE-ID SPS ERCOTN SWPP

ERCO PSE-ID ERCOT-N ERCOT ERCO

ERCO Sink PSE-ID ERCOT N

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Southwest Power Pool, Inc. Registration for SPP Interchange Scheduling 3.2.2 Asset Owners/Market Participant

The SPP Integrated Marketplace uses a Translation Table to map the entities from the tag to the appropriate entities in the SPP Commercial Model.

Purchasing and Selling Entity – The Purchase and Selling Entity is the NAESB registered (NAESB EIR) name used on the tag to represent company ownership. All PSE’s are mapped to a TC, which are mapped to an AO, and are then mapped to an MP in the Marketplace. For example, if a PSE is not registered as an SPP TC, then the tag will be rejected.

Also, it is possible that the “Creating PSE” is different than the PSE used as the TC on the tag. Transmission Customer (TC) – The PSE that is shown on the first leg of the “SWPP”

Transmission Service on a tag. The Transmission Customer is mapped to the appropriate Asset Owner.

Asset Owner (AO) – An owner of any combination of: (1) registered physical assets (2) Transmission Congestion Rights or (3) any combination of financial assets within the SPP Balancing Authority Area. The Asset Owner is mapped to the appropriate Market Participant. Market Participant (MP) – the entity in the Commercial Model that is financially obligated to SPP for market settlements. A single MP represents one or more Asset Owners.

PSE is mapped to a TC is mapped to a AO is mapped to a MP

The Tag Physical Path example below highlights the PSE field in which the Transmission Customer for the TSR should have been identified on this transaction. In this case, SEPCPM (identified from the original Transmission Service Reservation) would be mapped to the appropriate Asset Owner and Market Participant for this Interchange Schedule. It is important to note that if another PSE other than the actual Transmission Customer Owner of the TSR is shown in this field on the e-tag, it will have no effect on the TC mapping or on settlements.

Tag Example of PSE for Mapping Table

Tag Physical Path

EXAMPLE: MARKET IMPORT/HVDC TAG

Source WACMM1 WACM

WACM LAPT WACMM1 EIPOR AU WACM

PSCO MEANMN AU LAMR345 PSCO

SWPP SEPCPM LAM345 SECI SWPP

SWPP Sink SEPCPM SECI_SECI

REFERENCE: Market Protocols section 4.5.2.4. Asset Ownersand Market Protocols section 4.5.2.5. Market Participants

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Southwest Power Pool, Inc. Registration for SPP Interchange Scheduling Example of Commercial Model Relationships

Whereas: AO = Asset Owner MP = Market Participant G = Generator L = Load D = Demand

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Southwest Power Pool, Inc. Transmission Service for Interchange Scheduling

4 Transmission Service for Interchange

Scheduling

As outlined in the Transmission Service Reference Manual, Customers use OASIS to request Transmission Service. Transmission Service Requests (TSRs) must be validated, accepted, and confirmed prior to submitting an e-Tag to schedule the Service. Helpful information about procuring confirmed Transmission Service is outlined in the Transmission Service Reference Manual.

SPP has specific rules for acquisition of TSRs. These business rules are described in the SPP OATT. Clarification and details for these rules are described in the SPP Business Practices. REFERENCES: Transmission Service Reference Manual, SPP OATT, SPP Business Practices This section overviews changes, relating to Interchange Scheduling with the SPP BA and settlement thereof, as a result of the implementation of the Integrated Marketplace.

4.1 Transmission Losses for Interchange Transactions:

No physical Transmission Losses are allowed to be “self-supplied” on Interchange Transaction using SWPP Transmission Service in the SPP Integrated Marketplace. All losses are settled financially in the Integrated Marketplace.

4.2 Combining Transmission Service on Interchange Transactions

SPP allows Transmission Customers to combine certain types of Transmission Service reservations when tagging Interchange Transactions. The Business Rules for combing Transmission Service are documented in the SPP Business Practices and the Transmission Service Reference Manual.

REFERENCE: Business Practice # 2350 Combining SPP Transmission Service Requests

NOTE: Business Practices have been updated for Integrated Marketplace as needed to comply with the newly filed SPP Tariff.

4.3 Market Import Service (MIS)

To prevent hoarding, Market Import Service (MIS) will be recalled if not scheduled within 2 hours after queued for Day-Ahead or 30 minutes after queued for Real-Time.

The LCA on the tag must be SWPP.

REFERENCE: Refer to the Transmission Service Reference Manual for more information about MIS.

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Southwest Power Pool, Inc. Ramp Reservation for Interchange Scheduling

5 Ramp Reservation for Interchange Scheduling

The SPP BA is required by NERC to evaluate all Interchange tags to ensure adequate Ramp Capability is available prior to approval. SPP has developed a Ramp Reservation System (RRS) to allow TCs to view the ramp that is available within the SPP BAA at any given time and to reserve the ramp needed for their transactions prior to tagging the transaction. All

submissions of tagged Interchange Transactions into or out of the SPP BA will be evaluated against available Ramp Capability prior to approval by SPP.

Ramp availability may be verified and pre-arranged by TCs (as mapped to AOs) ahead of submission of an e-Tag through the RRS. Subsequent submission of a tag in which scheduled interchange is supported by an approved Ramp Reservation will be automatically approved with respect to Ramp Capability.

NOTE: If an approved e-Tag is adjusted, the adjusted e-Tag will be re-validated for Ramp-Up and Ramp-Down for the adjusted time period, and may fail ramp validation.

Use of the RRS is voluntary. Tagged transactions submitted without a Ramp Reservation or those that exceed the ramp reserved by the AO will be checked for remaining Ramp Capability and approved if available. Otherwise, the e-Tag will be limited to the reserved ramp or will be denied if ramp was not reserved and there is no available ramp.

Ramp validation is only applicable to scheduled Interchange that impacts SPP NSI (i.e. imports or exports of Energy to/from the SPP BA). Ramp validation is not performed on tagged

transactions wheeling through the SPP BA.

5.1 Ramp Capability

SPP Operations Engineering determines the available Ramp Capability within the SPP BAA based on current operating conditions and generation availability within the Integrated Marketplace. Ramp Capability is the maximum sustainable Ramp-Up and Ramp-Down capability expressed in MWs per minute.

5.2 Ramp Reservation Business Rules

Every e-Tag that is submitted by the CPSE where the Generating Control Area (GCA) or Load Control Area (LCA) is specified as “SWPP” will be validated for available Ramp Capability. Tags wheeling through the SPP BA where neither GCA nor LCA are “SWPP” will not be validated for ramp.

The Energy MW profile on a tag physical path segment listing “SWPP” as the Scheduling Entity (SE) will be used to validate Ramp Capability. In the case of pancaked or stacked transactions, the Energy MW profile at the first (for imports) or last (for exports) tag physical path segment listing “SWPP” as the Scheduling Entity (SE) will be used to validate Ramp Capability.

If no explicit start/stop ramp duration information is supplied in the e-Tag, the Eastern Interconnection default ramp duration of 10 minutes will be used for this validation. The only

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Southwest Power Pool, Inc. Ramp Reservation for Interchange Scheduling acceptable ramp durations are 10 minutes for the Eastern Interconnection, or 20 minutes for tags entering or leaving the Western Interconnection.

In the event that the start/stop ramp durations specified in the e-Tag overlap such that there is insufficient time to reach the block accounting scheduled Energy MWs specified, the e-Tag will be denied by SPP (e.g. a schedule profile segment with start/stop duration of 15 minutes specified with a 20 minute start/stop ramp duration).

5.3 Ramp Reservation Validation

The Integrated Marketplace Ramp Validation will first determine the Ramp-Up or Ramp-Down Capability required, in MWs/minute, at each schedule breakpoint based on the change in the proposed scheduled interchange Energy MWs divided by the ramp duration:

• Import tags: Ramp-Up is validated for import ramp availability; Ramp-Down is validated for export ramp availability.

• Export tags: Ramp-Up is validated for export ramp availability; Ramp-Down is validated for import ramp availability.

Ramp Reservation requests will be approved immediately upon submission subject to the verification of available Ramp-Up or Ramp-Down Capability; after accounting for all other approved Ramp Reservations and approved or pending e-Tags. The available Ramp Capability in either direction will be offset by simultaneous reserved or tagged ramp commitments made in the opposite direction in accordance with netting rules established by the SPP Integrated Marketplace. NOTE: Refer to section 5.5 e-Tag Ramp Validation for information on how webTrans validates e-Tags for ramp availability.

5.4 Ramp Reservation Deadlines

• _{Reserved ramp that has not been tagged will be released for the entire Operating Day}

(OD) immediately after the Day-Ahead (DA) Market closing time.

• _{Real-Time (RT) reserved ramp that has not been tagged will be released for the entire}

duration of the Ramp Reservation at 30 minutes prior to the reserved ramp start time.

• _{Tags submitted by the TC subsequent to the release of any reserved ramp will be}

validated against the remaining available Ramp Capability in the order submitted.

• _{If a TC/Market Participant (MP) does not submit a specific Ramp Reservation, the}

system will evaluate the submitted e-Tag against the available capability.

5.5 e-Tag Ramp Validation

The Integrated Marketplace Ramp Validation will first determine the Ramp-Up or Ramp-Down Capability required, in MWs/minute, at each schedule breakpoint based on the change in the proposed scheduled interchange Energy MWs divided by the ramp duration:

• _{Import tags: Ramp-Up is validated for import ramp availability; Ramp-Down is}

validated for export ramp availability.

• _{Export tags: Ramp-Up is validated for export ramp availability; Ramp-Down is validated}

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Southwest Power Pool, Inc. Ramp Reservation for Interchange Scheduling The Ramp Validation will then determine if there are any unscheduled ramp commitments held by the CPSE under one or more Ramp Reservations matching the ramp start/stop times specified in the e-Tag at each schedule breakpoint. If so, the unscheduled ramp commitments held on those Ramp Reservations will be allocated first to support the proposed e-Tag

schedule. Any additional Ramp Capability required beyond that supported by one or more Ramp Reservations, or the entire Ramp Capability required by the proposed scheduled interchange in the case where the CPSE does not have any supporting Ramp Reservation(s), will be validated against the remaining Ramp-Up or Ramp-Down Capability available. If there is sufficient Ramp Capability available to support the e-Tag transaction, ramp

commitments will be allocated to support the proposed scheduled interchange and the e-Tag will be approved, subject to passing all other e-Tag validations, by SPP. That is, an implied ramp reservation will be committed to support the e-Tag from the remaining SPP Ramp

Capability for the ramp required in excess of any pre-arranged ramp reservation(s) held by the CPSE on a first-come-first-served basis. If the proposed e-Tag schedule would violate SPP Ramp Capability at any point in time, the e-Tag will be denied by SPP.

The Ramp Validation will respect the netting of simultaneous Ramp-Up and Ramp-Down commitments according to SPP rules for such netting.

5.6 Ramp Reservation System (RRS)

The RRS is part of the OATI webTrans. MPs or authorized AOs may gain secured login access to webTrans and the RRS with an authorized Username and Password in addition to an OATI x.509 electronic certificate issued by the OATI webCARES system. webTrans is available over the Internet. Market Participants are directed to the OATI Help Desk at (763)-201-2010 to obtain an authorized user account for webTrans. Please see the SMT 33.0 RRS Scenario Document for the URL to be used for SMT.

Step Action Comments

1 Open webTrans via the Internet.

2 Click on the Click Here to Enter link/ User Login Screen displays. 3 Enter your credentials in the User Name and

Password fields.

4 Click Login. WebTrans dashboard displays with a toolbar at the top.

5 Click Marketplace from the homepage toolbar.

A drop-down menu displays.

6 Select Ramp from the menu, then Ramp Reservation Summary from the sub-menu.

A screen displays with approved ramp reservations and button that allows you to enter a new reservation.

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5.7 Ramp Reservation (Submission) Display

The TC/MP or authorized AOs may submit ramp reservation requests using the RRS. Ramp reservations are limited to a single designated OD in the SPP Integrated Marketplace. Ramp reservations may be submitted and approved up to seven (7) days prior to a given OD in accordance with the SPP Integrated Marketplace Bid/Offer submission window.

The Ramp Reservation Entry Form is accessible from the Ramp Reservation Summary display, which allows entry of a ramp reservation request.

NOTE: The ramp reservation profile should mirror the profile of the e-Tag that will be submitted.

1 Click Ramp Reservation Entry. The Ramp Reservation Entry screen displays with a blank entry form. 2 Enter the necessary data in the fields,

including:

• Provider (e.g. SWPP) • Operating Day

• Customer (e.g. Your PSE Code)

• Direction (Direction of Flow; e.g. Import) • Start Time and Stop Time (Always CP) • Energy MW (MW Amount to be reserved)

The information on the right side of the screen populates after you click Check, as shown in the next step.

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Southwest Power Pool, Inc. Ramp Reservation for Interchange Scheduling After entering the ramp reservation data, the Customer has several options shown at the

bottom of the screen.

Option Action Comments

1 Click Check. This option will check the available Ramp-Up and Ramp-Down Capability needed to support the proposed scheduled interchange profile.

Any violations of the total SPP Ramp Capability in either direction will be indicated and allow for the user to adjust the Energy profile as needed to avoid the ramp violations.

No ramp commitments are held with the ‘Check’ option, and there is no guarantee that subsequent submission of the Ramp Reservation request will be approved.

2 Click Commit. This option will perform the available Ramp-Up and Ramp-Down Capability verification; and if there is no violation of total SPP Ramp Capability in either direction, the Ramp Reservation will be approved and a corresponding ramp commitment for the proposed scheduled interchange will be held for the MP.

If any violations of the total SPP Ramp Capability in either direction are detected, those violations will be indicated and allow for the user to adjust the Energy profile as needed to avoid the ramp violations similar to the ‘Check’ option.

3 Click Clear. This option clears the data entered and allows the user to start with a clean screen.

4 Click Close. This option closes the screen. If this option is checked prior to clicking

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5.8 Ramp Reservation Status

Ramp reservations that have been approved may be viewed from the Ramp Reservation Summary display.

Details of the ramp reservation proposed scheduled Interchange profile, and all pending or approved e-Tags that have been submitted that are supported by a given ramp reservation may be viewed by clicking on the assigned Ramp Reservation ID from the Ramp Reservation Data display. The ID displays in blue on the left of the screen below.

After clicking on the Reservation ID for the PSE bucket, the Ramp Reservation Detail display will provide the details for that particular reservation. If a tag has been created against the ramp reserved, the tag will be indicated in the Ramp Commitment section.

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Ramp Availability

SPP’s Ramp Availability is the amount of up/down ramp left and ready to be reserved. It will change based on reservations and tags submitted, and it will be deducted from the Ramp Capability of 500.

1 From the WebTrans

dashboard, click Marketplace

from the toolbar.

A drop-down menu displays.

2 Select Ramp from the menu, then Ramp Availability from the sub-menu.

The Ramp Availability Data screen displays.

NOTE: To populate the data on the screen, you must either select filtering options or click the View Display button.

3 Click on the Filter icon in the upper right-hand corner of the screen.

The Filtering Options window displays.

4 Select “SWPP” from the Provider field drop-down menu.

5 Select the desired date range

from the Range drop-down menu or click on the Calendar

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NOTE: The Available Ramp Up and Available Ramp Down columns display the remaining Ramp-Up (positive numbers) and Ramp-Down (negative numbers) for the selected Block Size.

6 Select the desired block size from the Availability Block Size drop-down menu.

NOTE: Block size is the increment displayed in minutes (e.g. a block size of “60” provides the ramp information hourly.) Users can set this field to smaller increments to fine-tune their requests.

7 Enter the desired Ramp Duration from the drop-down menu.

NOTE: Ramp duration is how long the ramp will spread the desired MWs over to ramp up or down (e.g. 10 minutes for Eastern interconnect; 20 minutes for WECC).

8 Click Apply to apply the filters selected, or click Reset

to reset the filters and start

over. _NOTE_{: Results with applied filters are shown in the} screenshot below.

The Block Size is for 60 minutes (an hour) which users can see from the

times in the Start and Stop columns.

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Southwest Power Pool, Inc. Tagging Interchange Transactions

6 Tagging Interchange Transactions

6.1 Electronic Tagging (e-Tag)

e-Tagging is a process of electronically communicating a request for, securing approval of, and recording an Energy transaction. The functionality of the e-Tag is used to track proof of

Energy delivery as required by one or more regulatory bodies within the Eastern

Interconnection. It is the responsibility of the CPSE to fill out and submit the e-Tags. e-Tags that do not comply with the following criteria are considered to be invalid and will be rejected. e-Tags must:

• _{comply with the Market Protocols regarding selection of market types and transaction}

types

• _{have an existing confirmed SWPP transmission reservation}

• _{fit within the parameters of the transmission reservation}

• _{be compliant with the procedures specified in the SPP OATT and Business Practices}

• _{have a unique tag ID}

6.2 Tag Transaction Types

Tag submissions contain several different attributes associated with the request. These attributes provide detailed information associated with each request. The attributes are 1) Tag Transaction type, 2) Interchange Schedule Type, 3) Market Type and 4) Market

Transaction Type. Each Interchange Transaction Schedule has “type” fields that must be filled in indicating the use of the tag.

There are several “Tag Transaction Types” available through the NERC Electronic Tagging Process:

• _{Normal – Tag for regular (normal) Energy}

• _{Dynamic – Tag with an estimated mw that is updated modified in real-time to comply}

with NERC requirements and updated to the telemetered reading or mw value After-The-Fact

• _{Emergency – Tag during an emergency of the BA can be created After-The-Fact.}

• _{Loss Supply – SPP Integrated Marketplace does not allow physical losses on tags/}

schedules.

• _{Capacity – SPP does not support Interchange Capacity Tags/Schedules.}

• _{Recallable – Tag with a recallable feature (The recallable feature is used for} supplemental regulation transactions).

• _{Pseudo-tie – Tag that allows inter-BA transmission visibility for Pseudo-tie facilities} NOTE: SPP does not allow the use of all Tag Transaction Types

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6.3 Interchange Schedule Types

The Tag Transaction Types described above result in the following Interchange Schedule types for the SPP BA and Integrated Marketplace: Imports, Exports and Through.

NOTE: SPP does not allow the use of all Interchange Schedule Types on tags. Physical paths that are internal to the SPP Integrated Marketplace and SPP BA are not tagged. See Market Protocols for “Bilateral Settlement Schedules.”

6.3.1 Import

If the Source point is external to the SPP BAA and the Sink point is inside the SPP BA, the Interchange Schedule is an Import Schedule.

The GCA and Source for all tags importing into the SPP BAA for settlement in the Integrated Marketplace must be external to the SPP BAA. The following requirements must be met:

• _{Confirmed transmission must have been acquired.}

• _{The Source must match or be electrically equivalent to the Source on the TSR.}

• _{POR and POD must match the TSR.}

NOTE: SPP registers members as POR and POD.

• _{MIS Transmission Service timing requirements apply.}

• _{The LCA for all imports into SPP BAA must be SWPP.}

• _{SWPP is not used in the sink field of an import tag. The sink used must match or be} electrically equivalent to the sink on the TSR.

REFERENCE: Market Protocols section 4.2.2.7 Import Interchange Transactions Offers NOTE: Refer to Appendix B for an example tag physical path for an Import into SPP BA. 6.3.2 Export

If the Sink point is external to the SPP BAA and the Source point is internal, the Interchange Schedule is an Export Schedule.

• _{The LCA and sink for all tags exporting out of the SPP BAA must be an external to the} SPP BAA.

• _{The GCA for all exports out of the SPP BAA must be SWPP.}

• _{POR and POD must match the transmission reservation.}

NOTE: SPP registers members as POR and POD. • _{SWPP is not used in the Source field of an Export tag.}

REFERENCE: Market Protocols section 4.2.3.3 Export Interchange Transactions Offers NOTE: Refer to Appendix B for an example tag physical path for an Export from SPP BA/Market.

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Southwest Power Pool, Inc. Tagging Interchange Transactions 6.3.3 Through

If the Source point and Sink point are external to the SPP BAA; the Interchange Schedule is a Through Schedule (wheels through the SPP BAA).

• _{The LCA, GCA, Source and Sink for all Through Schedules must be external to the SPP}

BAA.

• _{Special rules apply for POR and POD when combining Transmission Service.}

REFERENCE: Business Practice # 2350 Combining SPP Transmission Service Requests NOTE: Refer to Appendix B for example tag physical paths for Through/Wheels into and out of the SPP BA (for HVDC tie and non-HVDC tie transactions).

6.4 Market Types

The market types for Interchange Schedules (for Normal and Dynamic tag types) are Day-Ahead Market and Real-Time Market.

6.4.1 Day-Ahead Market

The Day-Ahead Market provides Market Participants with the ability to submit Bids and Offers for exporting and importing Energy out of and into the SPP BAA.

NOTE: If “Day Ahead” is not explicitly defined in the e-Tag, the Market Type defaults to “Real-Time”.The Market Data section of the e-Tag must be filled out in order to explicitly define the intention of bidding or offering into the SPP Day-Ahead Market.

Inputs to the Day Ahead process through tagged interchange transactions are:

• _{Bids and Offers for Exports and Imports}

• _{Market Type designation}

• _{Market Transaction Designation}

• _{MW profile}

Outputs to Day Ahead process for tagged Interchange Transactions are cleared Import/Export Transactions which reflect adjusted Interchange Schedules that are not completely cleared

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Southwest Power Pool, Inc. Tagging Interchange Transactions Example of Day-Ahead Schedule Market Information

SPP Market Information on an e-Tag

Market Date Market Type Transaction Type

9/27/2013 Real Time Fixed

Ahead Day Dispatchable

Up-to-TUC

HE01 HE07 $25 HE07 $20 HE07

HE02 HE08 $20 HE08 $25 HE08

HE03 HE09 $25 HE09 $25 HE09

HE04 HE10 $25 HE10 $30 HE10

HE05 HE11 $20 HE11 HE11

HE06 HE12 $20 HE12 HE12

Specific Timing Requirements apply to Day Ahead tagged Interchange Transactions. These timing requirements are shown in the diagram below. It is important to note that Day Ahead tags are only allowed for one Operating Day (CPT) at a time. The Market Date must match the tag start/stop profile. PSEs are not allowed to adjust, correct, or extend Day Ahead tags during the Market Clearing time (11am – 4pm).

REFERENCE: Market Protocols section 4.3 Day-Ahead Activities

The following is a Day-Ahead Activities Timeline taken from the IM Protocols: NOTE: All times are shown CPT.

REFERENCE: Market Protocols section 4.3.1 Day-Ahead Market 6.4.2 Real Time Market (RTBM)

For the RTBM, only Fixed Import and/or Export schedules may be submitted along with Through schedules. Import and/or Export schedules that clear in the Day-Ahead Market automatically roll forward as Fixed schedules for use in the RTBM.

12:00 AM 11:59 PM

01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 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 1/30 - 1/30

Day-Ahead 00:00 - 11:00

MPs submit Offers and Bids

11:00 DA Market closes

11:00 - 16:00 SPP performs DA Market process

16:00 SPP posts DA Market

results

17:00 - 20:00

SPP performs Day-Ahead RUC process 20:00

SPP communicates RUC results to affected MPs

07:00 SPP Posts Operating Reserve

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Real Time Schedule Market Information

Day Ahead Dispatchable

Up-to-TUC

Bid/Offer MWS are specified in Tag Energy Profile

REFERENCE: Market Protocols section 4.4.2 Real-Time Balancing Market

The following table summarizes the valid combinations and associated Bid information for the SPP Integrated Marketplace:

Market Transaction Bid/Offer Combinations

SOURCE SINK WILLINGNESS TO PAY DISPATCHABLE

TAG TRANSACTION

TYPE

INTERCHANGE SCHEDULE

TYPES OFFER PRICE MARKET TYPE

Interface A

SPP, internal

pnode

(load) Must be Yes Yes NORMAL OR DYNAMIC IMPORT

LMP difference

between Interface and

Internal Up to TUC Interface A SPP NA NORMAL OR DYNAMIC IMPORT Price Taker Fixed Interface A SPP Yes NORMAL OR DYNAMIC IMPORT Interface dispatchable SPP, internal

pnode

(generation) Interface A Must be Yes Yes NORMAL OR DYNAMIC EXPORT

LMP difference

Internal Up to TUC SPP Interface A NA NORMAL OR DYNAMIC EXPORT Price Taker Fixed SPP Interface A Yes NORMAL OR DYNAMIC EXPORT Interface dispatchable Interface A Interface B NA NORMAL OR DYNAMIC WHEEL Price Taker Fixed

Interface A Interface B Must be Yes Yes NORMAL OR DYNAMIC WHEEL

LMP difference

Internal Up to TUC

NOTE: If no market Bid information is submitted with the e-Tag, the associated schedule is assumed to be Real-Time Fixed.

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6.5 Integrated Marketplace Transaction Types

There are 3 Marketplace Transaction Types supported for tagged Interchange Transactions. They are 1) Fixed, 2) Dispatchable and 3) Up-to-TUC. Each is discussed below.

NOTE: If the Market Transaction type is not explicitly defined in the e-Tag, the transaction defaults to Fixed.

6.5.1 Fixed Interchange Transactions

Fixed Interchange Transactions are physical transactions that bring Energy into and/or out of the SPP BAA. Energy prices are settled at the LMP at the applicable External Interface

Settlement Location. Submitters of this type of transaction in the Integrated Marketplace are price takers for that Energy.

Fixed Interchange Schedules are supported in both the Day-Ahead Market and in the Real-Time Balancing Market.

REFERENCE: Market Protocols section 4.2.2.7

An e-Tag for a Real-Time Fixed Interchange Schedule must be submitted no later than 20 minutes prior to the start of the schedule. Fixed Interchange Schedules may not be submitted or modified during the operating hour except for reliability purposes as determined by the Transmission Provider. The MP must ensure the transaction meets the applicable

acknowledgement and transfer deadlines.

Real Time Fixed Schedule Market Information – choices in Yellow

Up-to-TUC

A Day-Ahead Fixed Interchange Schedule must be submitted via e-Tag and approved by the MP and in the implemented state by 1100 hours CPT (OD-1). Day-Ahead Fixed Interchange

Schedules automatically roll into the Real-Time Energy and Operating Reserve Market as a Fixed Interchange Schedule.

Day-Ahead Fixed Schedule Market Information – choices in Yellow

Up-to-TUC

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Southwest Power Pool, Inc. Tagging Interchange Transactions If the submitter does not want the cleared Day-Ahead Fixed Interchange Schedule to roll into the Real-Time Balancing Market, the MP must zero out the e-Tag no later than 30 minutes prior to the start of the schedule or the start of the operating hour. The MP is settled at the Day-Ahead Location Marginal Price (LMP) for the cleared MW amount and charged for any deviation in the Real-Time Balancing Market at real-time LMPs.

NOTE: All Fixed Interchange Schedules’ Energy prices are settled at the LMP at the applicable External Interface Settlement Location.

6.5.2 Dispatchable Interchange Schedules

Dispatchable Interchange Schedules are physical transactions that bring Energy into and/or out of the SPP BAA and specify a Bid or Offer (MWh). These schedules are supported in the Day-Ahead Market only and also must meet all market requirements. LMPs are determined in the Day-Ahead Market at the appropriate External Interface Settlement Location representing the interface between the SPP BA and the applicable External BA.

A Dispatchable Offer specifies both a MW amount and a minimum price that the customer must pay if the transaction clears the Day-Ahead Market. See the example below for input to the Tag Market info section.

REFERENCE: SPP Market Protocols section 4.2.2.7 (3) (b) Import Interchange Transaction Offers

The following business rules apply to Dispatchable Interchange Schedules:

• _{Dispatchable Interchange Schedules must adhere to the Day-Ahead Market timing}

deadlines.

• _{If the Dispatchable Interchange Schedule is cleared in the Day-Ahead Market, it rolls} into the Real-Time Balancing Market and is treated as a Fixed Interchange Schedule at the MW level that was determined in the Day-Ahead Market.

• _{All Dispatchable Interchange Schedules, both Import Schedules and Export Schedules,}

are settled at LMPs determined in the Day-Ahead Market at the appropriate External Interface Settlement Location representing the interface between the SPP BA and the applicable external BA.

• _{Dispatchable Interchange Schedules cannot be used for Through Interchange Schedules.}

• _{MPs may use the Market Import Service (MIS) product for Dispatchable Normal}

Interchange Schedules that are imports.

• _{Dispatchable pricing Offers can be a minimum of $-1000 and a maximum of $1000.}

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Southwest Power Pool, Inc. Tagging Interchange Transactions Day-Ahead Dispatchable Schedule Market Information – choices in Yellow

Up-to-TUC

HE01 HE07 $25 HE07 $20 HE07

HE02 HE08 $20 HE08 $25 HE08

HE03 HE09 $25 HE09 $25 HE09

HE04 HE10 $25 HE10 $30 HE10

HE05 HE11 $20 HE11 HE11

HE06 HE12 $20 HE12 HE12

6.5.3 Up-to-TUC Interchange Schedules

Up-to-TUC Interchange Schedules are physical transactions created via e-Tag that specify a willingness to pay the Transmission Usage Charge (TUC) (in $/MWh) represented by a

maximum amount beyond which the MP agrees to be curtailed. These schedules are relevant to the DA Energy and Operating Reserve Market only.

An Up-to-TUC Offer on an Interchange Transaction specifies both a MW amount and the maximum amount of congestion cost and marginal loss cost the customer is willing to pay if the transaction is cleared in the Day-Ahead Market. See example below for input to the Tag Market Info Section.

REFERENCE: SPP Market Protocols section 4.2.2.7 (3) (c) Import Interchange Transaction Offer

The following business rules apply to Up-to-TUC Interchange Schedules:

• _{Up-to-TUC Interchange Schedules are supported in the Day-Ahead Market only and the}

cleared amount determined by the Day-Ahead Market is rolled into the Real-Time Balancing Market.

• _{The transaction must meet all e-Tag and market requirements. An Up-to-TUC}

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Southwest Power Pool, Inc. Tagging Interchange Transactions Day-Ahead Up-to-TUC Schedule Market Information – choices in Yellow

Up-to-TUC

HE01 $ 25 HE07 HE07 HE07

HE02 $ 25 HE08 HE08 HE08

HE03 $ 25 HE09 HE09 HE09

HE04 $ 25 HE10 HE10 HE10

HE05 $ 25 HE11 HE11 HE11

HE06 $ 25 HE12 HE12 HE12

The TUC is calculated based on the differences in LMPs between the Source points and Sink points.

6.6 Dynamic Interchange Schedules

SPP BA and Integrated Marketplace allow Dynamic Schedules. Special business rules apply to the use of Dynamic Schedules. Dynamic Schedules are an estimate. The PSE or the LSE is expected to update the estimate in real time 20 minutes prior to the new hour with more accurate base values if the NERC accuracy requirements of dynamic tag are not met. (See NERC Reliability Standards for details.)

Dynamic Schedules are updated to the actual meter value after-the-fact. These dynamic updates to actual must be made prior to Market Settlement processing.

6.6.1 External Dynamic Resources (EDR)

External Dynamic Resources are resources (or fleets of resources) located in a Balancing Authority outside of the SPP BAA that are modeled as resources internal to the SPP BA. If a customer registers an EDR in the Integrated Marketplace the EDR must be associated with a tagged Dynamic Schedule.

Detailed Business Rules for Integrated Marketplace commitment and dispatch of EDRs is listed in the Market Protocols. Business rules specific to EDRs related to TSR and associated Dynamic Schedules are:

• _{EDRs must have a confirmed Firm TSR and an associated Dynamic Schedule that}

represents the total capacity of the EDR.

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• _{The EDR resource (Source) is mapped to an EDR External Interface Settlement Location}

for purposes of the Integrated Marketplace settlements.

• _{The Transmission Customer must follow all NERC business rules for dynamic tags.}

• _{EDR business rules are applicable to schedule over HVDC ties.}

REFERENCE: Market Protocols section 6.1.10.2 Resources External to the SPP BA Pseudo-Tying In

REFERENCE: Market Protocols section 6.1.10.3 Resources Internal to the SPP BA Pseudo-Tying Out

6.7 HVDC Ties

Transactions that involve High-Voltage Direct Current (HVDC) transmission must indicate the DC tie in the Physical path section of the e-Tag in the SPP market footprint. Each applicable transaction requires confirmed Transmission Service. SWPP is the Transmission Service Provider over the ERCOT DC ties and the Miles City DC Tie. SWPP is responsible for selling transmission “over” these ties and not just up to the Tie.

The Transmission Provider and Balancing Authorities associated with the DC tie must be specified on the tag. The SPP BA evaluates each tag that delivers Energy over a DC tie to ensure that the Balancing Authority who operators the DC tie is included in the Physical Path section of the tag. The use of the Scheduling Entity field is shown in yellow below.

DC tie Tag indicating necessary Scheduling Entities

PHYSICAL PATH SECTION OF TAG

Source PSE-ID MISO

MISO MISO PSE-ID IPL CSWS MISO

SWPP PSE-ID AMRN ERCOTN SWPP

ERCO PSE-ID ERCOT-N ERCOT ERCO

ERCO Sink PSE-ID ERCOT

SWPP AC Service must also be referenced on the e-Tag in coordination with use of the HVDC system. For the above example of a “Through” transaction over the ERCOT North DC tie, the e-Tag must include three concurrent lines with SPP as Transmission Provider:

• _{The first leg, with service from the source e-Tag BA to the HVDC Source point.}

• _{The second leg, with service on the HVDC transmission line.}

• _{And the third leg, with service from the HVDC Sinks to the ultimate Sink.}

SWPP is the Transmission Service Provider for the ERCOT DC ties and the Miles City DC Tie. This means that SWPP is responsible for selling transmission “over” these ties and not just up to the tie.

Examples of various “Physical Path” Sections of e-tags for ERCOTE, ERCOTN and MCWEST are shown in the 9 Appendix B – Tagging Examples

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Southwest Power Pool, Inc. Tagging Interchange Transactions SWPP is the Transmission Service Provider for service “up to the tie” for the other DC ties

connected to the SWPP Transmission footprint. The DC ties for which SWPP only sells service to the tie are: Blackwater, Lamar, Eddy, Sydney, Rapid City East, Stegall, and Saskatchewan

Examples of various “Physical Path” sections of e-tags for these DC ties are shown in 9 Appendix B- Tagging Examples.

NOTE: It is not possible to visually view an e-tag to determine if SWPP sells transmission “over” a particular DC tie.It is the responsibility of the Transmission Customer requesting service to know if the DC tie (for which SPP does not sell service “over” the tie) is in or out of service.

For any DC tie, the PSE or LSE is required to send SPP in real time the actual flow of the DC tie. The DC tie tag is included in the RTBM solution; however any Inadvertent of the DC tie will be supplied from the market.

• _{The DC tie tag is not included in the NSI of the SPP AGC.} • _{The DC tie is not considered a tie line in the SPP AGC.} 6.7.1 HVDC Tie Inadvertent

The SPP BA does not include NSI or NAI for HVDC ties in the ACE calculation for AGC. The SPP BA NERC reportable Inadvertent is calculated for the Eastern Interconnection only.

The SPP BA is also responsible for coordination of scheduling across HVDC ties. As such, SPP BA calculates and verifies DC Tie Inadvertent with the WECC and ERCOT Interconnections.

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Southwest Power Pool, Inc. Scheduling Interchange Transactions

7 Scheduling Interchange Transactions

7.1 Interchange Schedules

An Interchange Schedule is an agreed-upon Interchange Transaction size (megawatts), start and end time, beginning and ending ramp times and rate, and type required for delivery and receipt of power and Energy between Source and Sink Balancing Authorities involved in a transaction.

Following is the process for changing a tagged Interchange Transaction into an Interchange Schedule for the SPP BA and Integrated Marketplace.

CPSEs submit tagged Interchange Transactions as described in the previous sections of this document. Once the e-Tag is submitted and approved, an electronic schedule is created within the SPP Scheduling System (webTrans). Only transactions that enter, exit, or wheel through the market footprint are tagged or scheduled.

REFERENCE: Balancing Authority Operations version 1.0 section 6.4. Schedule Implementation

7.2 Electronic Scheduling System (webTrans)

SPP uses webTrans for several purposes. Prior to the implementation of the SPP BA and Integrated Marketplace, all SPP Balancing Authorities also used the webTrans for Regional Scheduling purposes. The SPP members are no longer required to use webTrans.

Purpose of webTrans:

• _{Validation of e-Tags to become Interchange Schedules}

• _{Checkout of NSI}

• _{Calculation of an SPP BA NSI}

• _{Calculation of the SPP BA Inadvertent}

There are several different Validation Processes:

• _{Validation of tags against TSR for compliance with the Tariff}

• _{Validation of tags for compliance with NERC requirements for the SPP BA}

• _{Validation of tags for compliance with Integrated Marketplace Protocols}

7.3 Validation of Tags for SPP Tariff

These validations verify that any market Bid/Offer information supplied within a new tag or tag adjustment is valid for the SPP Integrated Marketplace.

The following is a brief description of each of the Tag Validation Criteria that supports the Integrated Marketplace.

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Southwest Power Pool, Inc. Scheduling Interchange Transactions 7.3.1 Status

This validation checks that the “status” of the OASIS reservation is “Confirmed”. If the status is not Confirmed, or if the reservation does not exist, the tag will be denied.

7.3.2 Energy MW

This validation checks that the Transmission MWs on the tag do not exceed the OASIS reservation(s) transmission MW. If the Transmission MW on the tag exceeds the reserved amount, the tag will be denied.

Transmission MW do not exceed the Reserved TSR MWH

Energy and Transmission Profile Section of Tag

EXAMPLE: EXPORT

SWPP

Date Start Stop Gen MW Trans MW #TSR 123 MW Ramp Start Ramp Stop

8/12/2012 17:00 18:00 30 30 30 30 10 10

7.3.3 NERC Priority

This validation checks that the NERC Priority on the tag matches the NERC priority of the OASIS reservation. If the NERC Priority does not match the reservation, the tag will be denied.

7.3.4 POR/POD

This validation checks that the POR and POD on the tag match the OASIS reservation. If the POR and/or the POD do not match the OASIS reservation, the tag will be denied.

REFERENCE: Business Practice # 5100 Valid Tag POR/POD

7.3.5 Network Service – Market Import Service (MIS-NN6)

If the tag is for MIS, this validation checks that the LCA on the tag is “SWPP.” If the LCA is not SWPP, the tag will be denied.

7.3.6 Source/Sink

This validation checks that the Source and/or Sink on the tag match the OASIS Transmission Service Reservation. If the Source and/or Sink do not match the OASIS reservation, the tag will be denied. There are two exceptions to this rule:

• _{The OASIS transmission reservation has been properly combined with other}

Transmission Service and both are present on the tag, or

• _{The Source and/or Sink on the reservation are considered electrically equivalent with}

the Source/Sink on the tag.

SPP uses an Electrical Equivalency mapping table that compares the Source and Sink on the reservation to all possible registered Sources or Sinks that would result in an identical ATC calculation for the SPP. This allows the Source and Sink on the tag to include any number of Sources and Sink that have been registered for use by a PSE as the more granular “Settlement