《Model Improvement White Paper》.doc

SPP Model Improvement White Paper  Prepared by: Model Improvement Task Force Approved by Model Development Working Group: October 4, 2010 Approved by Transmission Working Group: October 18, 2010 Table of Contents History and Background 3 Purpose and Objective 3 1. Modeling Data Requirements 3 A. Uniform Generation Modeling 3 B. Uniform Load Modeling 4 C. Stability Load Modeling 4 D. Explicit Modeling of Reactive Control Devices 4 E. Identification of Generation Types 4 2. Detailed Reporting and Data Synching 5 A. Joint-Owned Unit Coordination and Reports 5 B. Delivery Point Changes and Load Owner Reports 5 C. MDWG Transaction Improvement 6 3. Modeling Methods 6 A. Forecasting of Rollover Rights 6 B. Modeling New Generation and Transmission Projects 7 C. Review, Expansion, and Implications of MOD Project Types 7 D. Modeling Projects in MOD before the RTO Need Date 8 4. Data Errors and Coordination 8 A. Improve Identification of Major Model Changes and Errors 8 B. Improve Regional Data Coordination and Checks 8 C. Coordination Between G.I. and Modeling 9 D. Model Sharing Instructions 9 E. Auxiliary Files Coordination and Organization 10 5. Uniform Generation Dispatch 10 A. Generation Dispatch Coordination and Expansion 11 B. LSEs That Cannot Meet Their Load 11 C. Determining Generation and NSI Profiles 12 History and Background The Model Improvement Task Force (MITF) was formed by the Transmission Working Group (TWG) to address increasing concern regarding the modeling process and the models produced by SPP. The MITF began work in February of 2010, comprised of members from the TWG and the Model Development Working Group (MDWG). Purpose and Objective The MITF was instructed to identify areas for process improvement within modeling. This group aimed efforts at adjusting and expanding the current set of practices associated with the MDWG in order to allow that group to develop a common base data set that will expand stakeholder input and instill efficiency and