Queue Intelligence · Playbook
How we ship MISO large-load interconnection under the Definitive Planning Phase Phase III framework, the Order 2023 compliance rewrite, the $23.5B LRTP Tranche 3 rollout, and the Affected System studies that gate every seam-adjacent project.
The MISO context
MISO's queue sits at 312 GW with load interconnection accelerating. The Definitive Planning Phase Phase III framework reflects FERC Order 2023's compliance rewrite — shared clusters, stricter readiness, more aggressive withdrawal penalties. The Long-Range Transmission Plan Tranche 3 is approving billions in upgrades. And MISO South's distinct conventions layer another surface of complexity on top.
MISO 2025 queue report
MISO business practices
MISO corporate
MISO MTEP
Active deadlines we're tracking
How we run a MISO filing
MISO's DPP cycle has strict financial readiness gates. We compute the deposit schedule, validate milestone compliance, and screen your project against the cluster window deadlines before you file.
Includes commercial readiness and site control attestations.
DPP cycles open on fixed schedules. Your project lands in the one that gives you the best commercial readiness and risk profile. We model Phase III and Phase II transitional considerations.
Factors in seasonal study windows and prior-cluster spillover effects.
MISO loads close to the PJM or SPP seams create Affected System studies that can add months. We pre-model the likely affected footprints and flag the risk before the system impact study is ordered.
Especially important for southern MISO near Entergy and TVA seams.
Tranche 3 of the MISO Long-Range Transmission Plan will allocate billions in upgrade costs. Your interconnection economics depend on whether your POI sits inside an LRTP corridor. We track the corridor planning documents in real time.
Integrates with Cliffcenter's upgrade cost envelope model.
What changed
MISO's Definitive Planning Phase Phase III reflects the Order 2023 compliance rewrite. Shared clusters, tighter readiness, and stricter withdrawal penalties now apply. Large-load projects under 20 MW have a simplified path; projects above that threshold navigate the full DPP.
MISO's queue intersects with PJM and SPP at multiple seams. A large load at a seam can trigger an Affected System study in the neighboring RTO — adding months and cost to the timeline. Early modeling is essential.
MISO's Long-Range Transmission Plan Tranche 3 will approve tens of billions in upgrades. Cost allocation remains a contested topic. Your project's economics can shift materially if it triggers LRTP allocation vs. DPP network upgrades.
MISO South (Entergy, Cleco, LG&E) operates under distinct load interconnection conventions that predate the full MISO Central playbook. We maintain parity in both regions and flag the process differences per utility.
Features
Every 345 kV and 500 kV bus in the MISO footprint, tied to nightly queue and base case ingestion. Our graph includes the Southern Region's post-SERTP integration footprint.
Live view of every active DPP cycle — open / in study / final / withdrawn — with readiness-gate alerts and deposit scheduling.
For projects near PJM, SPP, or TVA seams, we pre-model likely affected footprints so your counsel and engineering team see the cross-RTO risk before the system impact study begins.
MISO's Long-Range Transmission Plan is allocating $23.5B in transmission spend. Your interconnection economics depend on the corridors your project triggers. We overlay corridor eligibility on every POI.
Entergy, Cleco, and LG&E service areas are often overlooked by ERCOT- or PJM-focused tools. We maintain MISO South parity with MISO Central, including Entergy's large-load generic study process.
MISO's queue is dominated by wind and solar; adding a large load changes the interaction patterns. We model your load shape against the seasonal generation mix.
“Projected load growth in MISO is the most rapid in the organization’s history, driven almost entirely by large industrial and data center interconnection requests.”
Other playbooks
MISO playbook
We pre-model Affected System exposure for every candidate POI. Your counsel and engineering team see the cross-RTO risk before the system impact study begins.