Replacing 244 MW of Solar with Nuclear; Duane Arnold
251 MW generation in Linn, IA · In queue since August 2025 · Proposed COD December 2029
251 MW
Capacity
1
Components
Nuclear
9 months
In Queue
—
IA Status
COD target: 2029
Total Duration
4y 4m
Interconnection request submitted to ISO/RTO
MISO uses the Definitive Planning Phase (DPP) process with 3 study phases.
Typical: 30–40 months (historical); 12 months target
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2029-12-31
MISO-R5071 is a proposed nuclear generation project with a total capacity of 251 MW. The project is located in Linn County, Iowa, and is interconnected within the Midcontinent Independent System Operator (MISO) region, with ITC MIDWEST as the utility.
The project entered the MISO interconnection queue on August 26, 2025. The point of interconnection (POI) is at the Duane Arnold (ARNOLD 5) facility.
Generated from interconnection queue and public data sources
Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
IA
County
Linn
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
ITC MIDWEST
Entity
MISO
Service Type
—
Point of Interconnection
Duane Arnold (ARNOLD 5)
Data Source
LBNL + Live
Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.
See the full risk decomposition + scenarios for this project.
Forward generation outlook — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this project.
Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- ISO / RTO
- MISO
- Trading Hub
- MINN.HUB
- Hub Confidence
- MEDIUM
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
No Ask reports yet for this entity.
Ask about Replacing 244 MW of Solar with Nuclear; Duane ArnoldForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
