Glossary

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Last amended: 2026-10-25. See all amendments.

• SPP: Southwest Power Pool, the regional grid operator for Kansas and 13 other states.
• Interconnection queue: the waiting list of power plants asking to connect to the transmission grid.
• DISIS: SPP's Definitive Interconnection System Impact Study, a cluster study of many requests together.
• IA / GIA: (Generator) Interconnection Agreement, signed after studies; sets upgrades and costs.
• Withdrawn: the developer left the queue (or was removed).
• ERAS: SPP's Expedited Resource Adequacy Study, a one-time fast-track approved in 2025.
• JTIQ: Joint Targeted Interconnection Queue, a SPP-MISO transmission portfolio to open room for new generators on their shared border.
• MW / GW: megawatt / gigawatt (1,000 MW).