Accurate network modeling supports efficient market operations

Modeling is based on detailed information for transmission network elements, resources and entities participating in the wholesale market.

Requirements

ISO Tariff
Business Practice Manual for Managing Full Network Model
Business Practice Manual for Market Instruments

Market participant asset implementation

This process provides a high level understanding of participating in the ISO Full Network Model process from a design and implementation standpoint that includes transmission and new resource implementation.

Market Participant Asset Implementation Process Guide v3.26/08/2020 10:21
Transmission Implementation Guide v2.411/28/2022 15:24
New Resource Implementation Guide8/25/2023 10:44

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Network modeling

The network model defines system parameters, price node and market scheduling limit mappings and planned network model updates.

Full network model schedule
- Full Network Model Schedule - 20233/30/2023 09:52
- Full Network Model Schedule - 20249/12/2023 15:24

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Full network model process
- Full Network Model Late Scope Change Request Form3/30/2023 09:52

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Network model changes and pricing node mapping
- Full Network Model Work Scope DB23M119/14/2023 11:16
- Full Network Model Work Scope DB23M108/10/2023 15:40
- Full Network Model Work Scope DB23M88/30/2023 10:00
- Full Network Model Work Scope DB23M77/26/2023 08:16
- Full Network Model Pricing Node Mapping Reference8/23/2021 11:41
- Full Network Model Pricing Node Mapping with EIM Reference5/20/2021 12:51

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Intertie constraint and branch group information
- Intertie Constraint and Branch Group Information Full Network Model Reference Document2/14/2019 11:21
  Based on FNM Release DB2019Q1
- Intertie Constraint and Branch Group Information Full Network Model Reference Document5/10/2017 11:02
  Based on FNM Release DB2017Q2

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Load distribution factor release report
The ISO will provide Load Distribution Factors for Pricing Nodes the responsible Utility Distribution Company identifies as having more than one retail customer (see Tariff Section 6.5.10.1.2). To inform the ISO which Load Distribution Factors can be released, please complete the Affidavit and the Load Distribution Factor Report Template and submit both documents to RDT@caiso.com. The Load Distribution Factors report can be accessed via Market Modeling Data on the Market Participant Portal. Please note, access to Market Modeling Data requires a signed non-disclosure agreement. For more information refer to the Market Modeling Data User Guide.

Pricing Nodes to release for Load Distribution Factor Report Template9/25/2017 14:15

Single Customer Pricing Node Certification Affidavit Template7/10/2014 15:52

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Resource maintenance

Maintain resource characteristics and scheduling coordinator assignments used in the market and systems to reliably operate the grid.

Master file schedule
- Master File Change Calendar5/10/2016 11:04

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Resource data submission

The Generator Resource Data Template and the Intertie Resource Data Template are used to submit requests to add or change specific operating parameters that reside in the Master File. For updates to existing data, scheduling coordinators must make any changes on the templates downloaded from the Master File user interface or application programming interface. Scheduling coordinators then submit updated templates using the user interface UPLOAD function or the programming interface SUBMIT services. Requests for new system resources should be sent to RDT@caiso.com in the New Intertie Resource Request template.

Balancing Authority Extreme Weather Template 2.09/19/2023 10:05
15-min Self-Scheduled Variable Energy Resource Request12/05/2017 16:03
Intertie Resource Data Template Version 6.06/11/2021 09:44
GRDT and IRDT Definitions2/06/2023 13:22
This spreadsheet contains the data field names, descriptions, and related validation rules that apply to the Generator Reference Data Template (GRDT) and Intertie Reference Data Template (IRDT).
New Intertie Resource Request7/15/2021 09:08
Generator Resource Data Template Version 17.02/06/2023 13:22
Required for resource transfers and resource to scheduling coordinator association
Group Constraints Request Form Version 24/27/2016 10:46

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Variable operations and maintenance adder form
- Variable Operations and Maintenance Adder Application Template5/07/2021 08:35
  See the Business Practice Manual for Market Instruments, Attachment L for instructions. Requires Excel 2007 and above.

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Multi stage generating resource

Multi-stage Generator Configuration Group Registration Form3/13/2019 09:29

Multi-stage Generator Registration Guide Book2/17/2017 11:38

Demand response
The partially completed Generator Resource Data Template available here provides guidance for completing the GRDT requirement for new Demand Response resources.

Generator Resource Data Template for New Demand Response10/13/2020 15:17

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ISO fuel region and electric region definitions

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Fuel Region and Electric Region Definitions5/30/2023 13:25

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Gas future price and greenhouse gas allowance price

Projected Proxy Cost Gas Price Component and Projected Greenhouse Gas Allowance Price Effective Sep 1, 20238/22/2023 11:44

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Use-limited resources

Resources that have operational or environmental restrictions that limit production hours but can operate for a minimum set of consecutive trading hours may be considered use-limited. New registration requests, use plan submissions and any questions should be sent to RDT@caiso.com.