As a FERC-designated Regional Transmission Organization, one of SPP's responsibilities is to create regional transmission expansion plans. With its members, regulators and stakeholders, SPP creates planning models and studies that determine what new transmission is needed to meet our region's long- and near-term needs and create a cost-effective, flexible and robust transmission network. SPP does not own or build transmission, though its Open Access Transmission Tariff contains rules that govern transmission planning.
The electric grid is in use every second of every day; the benefits of added transmission are not just long-term, but instantaneous. A well-planned and strong electric grid improves reliability minute-to-minute, optimizes long-term economic benefits, and helps meet public policy goals.
Current ITP posting notifications
All posting notifications are saved in the ITP Postings folder.
- 2021 ITP Short-Circuit Models – Pass 1 Trial 2 (11-15-2019)
- 2021 ITP Preliminary Powerflow Models – Pass 1 Trial 2 (11-15-2019)
- 2021 ITP Economic Generation and Load Review – Pass 1 Trial 2 (11-15-2019)
- 2020 ITP Market Powerflow Reactive Settings (1-07-2020)
- 2020 ITP Final Market Economic Model for Approval Updated (1-02-2020)
- 2020 ITP Final Market Economic Model for Approval (12-31-2019)
- 2020 ITP Final Constraint Assessment for Approval (12-30-2019)
- 2020 ITP Final Constraint Assessment MEM Posting Delay (12-27-2019)
- 2020 ITP Constraint Assessment Review (12-12-2019)
- 2020 ITP DPP Window Dates (12-06-2019)
- 2020 ITP Final Powerflow and Short-Circuit Models (11-04-2019)
- 2020 ITP Market Economic Model – Pass 3 (10-22-2019)
- 2020 ITP BR Updated Final Models
The Detailed Project Proposal (DPP) page is also available as part of the Transmission Owner Selection Process (TOSP). The DPP page contains a link to the DPP Submittal Form and instructions for its use.
Send requests for additional information or your questions via SPP's Request Management System.