TSR Modeling in Reliability Planning. Planning Subcommittee October 17, 2017

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1 TSR Modeling in Reliability Planning Planning Subcommittee October 17,

2 Objective TSR Modeling in MISO Series Base Models TSR Modeling in Reliability Planning Studies 2

3 TSR Modeling in MISO Series Base Models 3

4 TSR Modeling Process ERAG MMWG process is the industry standard practice in Eastern Interconnection MISO planning model development process aligns with the ERAG MMWG process Transmission Service Requests are inputs to models area interchange 4

5 ERAG MMWG Procedure Manual Excerpts from 6.2 B. Interchange Schedule Matrices Interchange coordination must be performed to ensure generation resources are allocated to the appropriate Balancing Authority Areas (BAA) The interchange coordination should consider all transactions that have confirmed annual firm transmission service (for one year or longer, including consideration of rollover rights) along the entire path from source to sink and have a firm energy contract for the resource. 5

6 ERAG MMWG Procedure Manual Excerpts from 6.2 B. Interchange Schedule Matrices The amount of interchange in any given year/season may not utilize the full capacity allowed under the transmission service or energy contract. The amount of interchange for a year/season should represent the expected and agreed upon firm capacity expected to serve load. Generation resources and transmission service are frequently not contracted for the entire ten years that the models are developed for. Coordination of interchange for these cases will require some judgment because all of the required elements may not be available. Information provided by LSE s resource forecasts and plans, rollover/renewal of transmission service, and duration of energy contracts should be considered 6

7 MISO MOD-032 Interchange Process Excerpts from MOD-032 Data Requirements and Reporting Procedure Area Interchange Data needed to model transactions will include the source and sink areas, transaction MW amount, applicable model scenarios, start/end dates and an OASIS reference (TSR) number or a Grandfathered Agreement (GFA) number if applicable Transactions need to be confirmed by both transacting parties. MISO will post a workbook for review... MISO reconciles the TSR data submittals by both parties. If TSR levels vary by party, then lower of two is the modeled TSR level. For example, Party A has 600 MW of TSR to Party B, Party B has 500 MW of TSR from Party A. MISO will model 500 MW of TSR between parties. 7

8 Key Base Model TSR Criteria Per ERAG MWMG manual, transactions should have confirmed annual firm transmission service (> 1 year) along the entire path and have a firm energy contract for the resource Therefore, if TSR levels are greater than power contract levels, the power contract levels are modeled in MISO Series Base Models 8

9 TSR Reliability Study Assumptions 9

10 Context for TSR Assumptions MISO discussed at IPTF the variations in TSR modeling assumptions and potential to cause different results in reliability study processes MHEB-MISO Firm TSRs have been modeled in MISO MTEP series cases based on agreed upon contractual commitments Generator Interconnection studies have modeled these TSRs at full values May drive different reliability upgrades and cause cost shift to different customer segments Need consistent results for consistent cost allocation of projects in MTEP and Generator Interconnection processes 10

11 MISO s Plan for Reliability Models MISO will align MTEP and Generator Interconnection assumptions Point to Point service always modeled NITS service level depends on study Contractually supported level in MTEP and GI-ERIS Full scheduling rights level in GI-NRIS, Annual Deliverability, and Long-term TSR studies 11

12 MISO-MHEB TSR Modeling in Reliability Studies Studies Point to Point (PTP) Transmission Service Modeled at Full Scheduling Rights Network Integrated Transmission Service (NITS) Modeled at Full Scheduling Rights Modeled at contractually supported levels Approximate Modeled Levels for Illustrative Purpose Sum of PTP + NITS MTEP ~ 1700 MW GI - ERIS ~ 1700 MW GI NRIS (Deliverability) Annual MTEP Deliverability ~2200 MW ~2200 MW Long-term TSR ~2200 MW

13 Benefits of this Plan MTEP models are well vetted and should reduce GI model review time MTEP NERC reliability assessment establishes baseline needed projects prior to GI start Firm transmission rights will be preserved through long-term TSR and deliverability studies 13

14 Questions and Contact Any questions? David Duebner Neil Shah 14

MISO 2018 Series Dispatch Update. MOD-032 Users Group October 3, 2017

MISO 2018 Series Dispatch Update MOD-032 Users Group October 3, 2017 1 Objective MTEP17 Dispatch Process MTEP18 Dispatch Updates Reminder Station Service Load Modeling Enhancements Wind Capacity Credit