Electronic scheduling work group update rick lowther srp
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Electronic Scheduling Work Group Update Rick Lowther SRP. Interchange Scheduling and Accounting Subcommittee Meeting Salt Lake City, UT August 2013. Electronic Scheduling Work Group Meetings. Past March 20-21, 2013 – Salt Lake City Future – ?. WIT Change Order 24 Re: INT-011-WECC-RBP-2.

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Electronic Scheduling Work Group Update Rick Lowther SRP

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Electronic Scheduling Work Group UpdateRick LowtherSRP

Interchange Scheduling and Accounting Subcommittee Meeting

Salt Lake City, UT

August 2013


Electronic Scheduling Work Group Meetings

  • Past

    • March 20-21, 2013 – Salt Lake City

  • Future – ?


WIT Change Order 24 Re: INT-011-WECC-RBP-2

  • BP specifies e-Tag requirements for ten-minute recallable reserve transactions.

    • e-Tag type set to “RECALLABLE”

    • Energy product type set to “C-RE”

    • Reserve obligation multiplier set to 100%

    • Reserve Responsible Entity set to sink BA or LSE

    • Sink BA or LSE activates reserves by downward market level energy profile adjustment (start time less than ten minutes past; zero ramp duration)

    • Source and sink BAs must approve market level energy profile adjustments


WIT Change Order 24 Re: INT-011-WECC-RBP-2

  • ESWG provided a requirements document specifying Interchange Authority functionality.

  • Special “RECALLABLE” e-Tag processing requirements

    • Allow Source BA to submit downward market level energy profile adjustments.

    • Default unspecified ramp durations to zero minutes for market level energy profile adjustments.

    • Require only Source and Sink BA approval.


WIT Checkout Process Re: INT-021-WECC-RBP-1.3

  • Requires adjacent BAs to checkout net scheduled (NSI) and net actual (NAI) interchange.

  • Checkout process timeframes

    • Pre-schedule day in accordance with WECC pre-schedule calendar (NSI only)

    • Next hour of current day (NSI only)

    • Current hour upon change (NSI only)

    • Prior hour of current day (NSI and NAI)

    • Past day (NSI and NAI)


WIT Checkout ProcessRe: INT-021-WECC-RBP-1.3

  • Suggested changes to reduce labor

    • Automate the prior hour/past day NSI checkout if there are no schedule changes since the current hour/next hour/pre-schedule day checkout. Currently, separate prior hour/past day and current hour/next hour/pre-schedule day checkboxes must be checked.

    • Automate the prior hour/past day NAI checkout if adjacent BAs upload matching NAI values. Currently, each BA can check the checkboxes even if they upload different NAI values.

  • Do the proposed changes meet WECC audit requirements?


e-Tag IssuesRe: INT-014-WECC-RBP-1

  • Reserve Responsible Entity (RRE) designation

    • All e-Tags that source and sink within the Western Interconnection must specify an RRE for the scheduled energy.

    • e-Tag Agents must provide a dropdown list of valid RRE selections that include source and sink BA along with GPEs or LSEs that are Reserve Sharing Group members.

    • ESWG needs to update the list of GPEs for certain joint-owned generation resources.


Rick Lowther

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