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2014 Annual Attachment O Stakeholder Meeting Ameren Missouri

2014 Annual Attachment O Stakeholder Meeting Ameren Missouri. August 18,2014. Agenda. Primary purpose is to review AMMO Pricing Zone Historical 2013 Transmission Rate Calculations which became effective June 1, 2014 Background on Attachment O,GG & MM Overview of MTEP

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2014 Annual Attachment O Stakeholder Meeting Ameren Missouri

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  1. 2014 Annual Attachment O Stakeholder Meeting Ameren Missouri August 18,2014

  2. Agenda Primary purpose is to review AMMO Pricing Zone Historical 2013 Transmission Rate Calculations which became effective June 1, 2014 • Background on Attachment O,GG & MM • Overview of MTEP • Ameren Missouri Rate Inputs • New Rate Protocols • Comparison to Previous Revenue Requirement • 2014 AMMO Pricing Zone NITS Charge

  3. Ameren Missouri • Ameren Missouri is a transmission-owning subsidiary of Ameren Corporation, as well as a MISO Transmission Owner (TO) • Ameren Illinois and Ameren Transmission Company of Illinois (ATXI) are two other Ameren subsidiaries that are MISO TOs. • ATXI was formed to build and own new regional transmission projects such as the MISO Multi-Value Projects • Ameren Missouri will continue to build and own traditional reliability projects needed to meet local needs and continue to maintain its existing transmission system • Ameren Missouri is currently building a new local reliability project in Southeast Missouri. • Ameren Missouri is the only MISO Transmission Owner in the AMMO pricing zone.

  4. MISO ATTACHMENTs O & GG Calculate rates for Schedules 9, 26 & 26-A • Attachment GG - Schedule 26 • Attachment MM – Schedule 26-A • Attachment O - net revenue requirement billed under Schedule 9 • Schedules 26 and 26-A are billed by MISO • Schedule 9 is billed by Ameren

  5. MISO ATTACHMENT gg • Cost Recovery for certain Network Upgrades • Eligible projects • Market Efficiency • Generator Interconnections • Cost shared based upon project type • MISO-wide based on load • Subregional based on LODF (Line Outage Distribution Factor) • Ameren Missouri has three Attachment GG projects completed • One additional project under construction • These projects were approved by MISO under prior Tariff provisions which allowed limited cost sharing for certain reliability projects • Attachment MM is very similar to Attachment GG • Applies to MISO Multi-Value Projects, but is not applicable to Ameren Missouri since it is not building or developing any MVPs.

  6. MISO ATTACHMENT O & GG • All transmission costs included in Attachment O calculation • Schedule 9 based on net revenue requirement – reductions for: • Any costs recovered in Schedules 26 & 26-A • Revenue Credits • Point-to-Point revenue in Schedules 7 & 8 • Rental revenue • Revenue from generator interconnections • Questions on Tariffs?

  7. Miso transmission expansion plan (MTEP) • Developed on an annual basis building upon previous analysis • MISO, Transmission Owners & Stakeholders • Includes subregional planning meetings • MTEP goals • Ensure the reliability of the transmission system • Ensure compliance with NERC Standards • Provide economic benefits, such as increased market efficiency • Facilitate public policy objectives, such as meeting Renewable Portfolio Standards • Address other issues or goals identified through the stakeholder process • Multiple future scenarios analyzed • End result – comprehensive, cohesive plan for MISO footprint • MTEP approved by MISO Board of Directors

  8. AMMO rate Inputs • Rates calculated using prior year FERC Form 1 data (historical calculation) • Rate base items based on Dec 31 ending balances • Only wholesale customers pay the Schedule 9 Rate in AMMO • About 6% of load • Ameren Missouri retail customers • Transmission facilities & costs included in bundled rates set by MoPSC • Pay for other MISO transmission related costs through the FAC • Note that some Transmission Owners’ rate calculations are different • Rates are initially set based on projected data • Annual True-up calculation to reflect actual costs reported in Form 1

  9. New Rate Protocols • On May 16, 2013, FERC issued order EL12-35 concerning required modifications to MISO rate protocols.  • The order requires MISO and the MISO Transmission Owners to modify the formula rate protocols to • Allow for increased scope of participation by Interested Parties • Allow for increased transparency concerning the implementation of the formula rate, • Define a process for information exchange • Allow for provision of additional information; and well-defined and clearly-structured challenge procedure • Require MISO and the MISO Transmission Owners to make an annual informational filing with FERC • The TOs filed compliance filings on September 13, 2013 • Requested an effective date of January 1, 2014 • The protocols will be applicable for the first subsequent Annual Update and Annual True-Up, which will take place on June 1, 2014

  10. New Rate Protocols • On March 20, 2014, FERC issued order ER13-2379concerning additional required modifications to MISO rate protocols.  • The TOs filed compliance filings on May 19, 2014 • The protocols were applicable for the first subsequent Annual Update and Annual True-Up, which took place on June 1, 2014

  11. New Protocol timeline

  12. AMMO Revenue Requirement June 2013 vs June 2014 Filings

  13. Ammo June 2014 filing Rate Base

  14. Ammo June 2014 filing Expenses

  15. Ammo June 2014 filing Capital Structure

  16. Ammo June 2014 filing Revenue Requirement

  17. Ammo June 2014 filing Net Revenue Requirement

  18. Ammo June 2014 filing Schedule 9 Rate Calculation

  19. Ammo June 2014 filing Attachment GG Calculation - Page 1

  20. Ammo June 2014 filing Attachment GG Calculation - Page 2

  21. Ameren Missouri

  22. Miso web links • Transmission Pricing - Attachments O, GG & MM Information • https://www.misoenergy.org/MarketsOperations/TransmissionSettlements/Pages/TransmissionPricing.aspx • Ameren OASIS • http://www.oasis.oati.com/AMRN/index.html • MTEP 13 • https://www.misoenergy.org/Planning/TransmissionExpansionPlanning/Pages/MTEP13.aspx • MTEP 14 • https://www.misoenergy.org/Planning/TransmissionExpansionPlanning/Pages/MTEP14.aspx • Schedule 26 & 26-A Indicative Charges • https://www.misoenergy.org/Planning/TransmissionExpansionPlanning/Pages/MTEPStudies.aspx

  23. QUESTIONS?

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