MISO Energy Storage Study Phase 1 Report - Utility Wind ...

Real Time (5 minute) Security Constrained Economic Dispatch (SCED) Energy
Dispatch ........................................................................................................................... 4-4
Ramp Capability For Load Following in MISO.................................................................. 4-5
FERC Correspondence Regarding MISO Tariff SER Treatment...................................... 4-6
Phase 2 Opportunities for Tariff Enhancements .............................................................. 4-7
5 ENERGY STORAGE MODELS AND ASSUMPTIONS ......................................................... 5-1
Planning Models.................................................................................................................... 5-1
MISO Energy Storage Study Models .................................................................................... 5-1
Study Models – EGEAS ........................................................................................................ 5-2
EGEAS Model Functionality ........................................................................................ 5-3
EGEAS Benefits .......................................................................................................... 5-5
EGEAS Drawbacks...................................................................................................... 5-5
EGEAS Energy Storage Model Assumptions .............................................................. 5-5
EGEAS Sensitivities .................................................................................................... 5-6
EGEAS Assumptions................................................................................................... 5-6
Study Models – PLEXOS ...................................................................................................... 5-9
PLEXOS Benefits ...................................................................................................... 5-12
PLEXOS Assumptions............................................................................................... 5-12
Phase 2 Recommendations to Improve Storage Modeling ............................................ 5-12
6 EGEAS ANALYSIS RESULTS .............................................................................................. 6-1
Results Summary for EGEAS ............................................................................................... 6-1
Phase 1 EGEAS Results....................................................................................................... 6-1
Energy Arbitrage Analysis Based on EGEAS Results...................................................... 6-4
EGEAS Model Takeaways.................................................................................................... 6-5
7 INITIAL PLEXOS ANALYSIS ................................................................................................ 7-1
PLEXOS Phase 1.................................................................................................................. 7-1
Challenges Uncovered During Phase 1 PLEXOS Analysis .................................................. 7-1
Modeling Challenges Identified Using PLEXOS ................................................................... 7-3
Initial Conclusions from Phase 1 PLEXOS Analysis ............................................................. 7-4
Lessons Learned FROM Phase 1 PLEXOS Analysis ........................................................... 7-7
PLEXOS Next Steps – Pre Phase 2...................................................................................... 7-7
PLEXOS Next Steps – Phase 2 ............................................................................................ 7-8