IP-558
120 MW generation in Jerome, ID · In queue since May 2019 · Proposed COD September 2026
120 MW
Capacity
1
Components
Solar
7y 2m
In Queue
IA Executed
IA Phase
Signed Jul 2021
Queue → IA
2y 2m
IA → COD
5y 2m
Total Duration
2y 2m
Interconnection request submitted to ISO/RTO
Project undergoes interconnection studies to assess grid impact.
Typical: 18–36 months
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 12–24 months
Proposed COD: 2026-09-30
IP-558 is a proposed 120 MW solar generation project located in Jerome County, Idaho. The developer is Cat Creek Energy, LLC, and the interconnecting utility is Idaho Power Company. The project entered the IP interconnection queue on May 14, 2019, with a proposed commercial operation date of December 1, 2020. The interconnection agreement was executed on July 30, 2021. The point of interconnection is the Hunt_x0013_Milner 138kV Line.
The project's interconnection status is currently listed as suspended. Recent news coverage indicates development activity related to the project.
Generated from interconnection queue and public data sources
Realization risk from now to commercial operation — financing close, EPC and tax-equity counterparty mix, and COD probability vs the proposed date. The diligence view that determines whether the deal actually closes. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
ID
County
Jerome
Grid Region
Mountain West
Market
—
Developer
Cat Creek Energy, LLC
Utility
Idaho Power Company
Entity
IP
Service Type
NRIS
Point of Interconnection
Hunt–Milner 138kV Line
Data Source
LBNL
Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. 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 — first-year production estimate and 10-year P50 trajectory, with probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios. 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. First-year DSCR, 10-year cashflow, and counterparty exposure across price and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- ISO / RTO
- MOUNTAIN_WEST
- Trading Hub
- MID-C
- Hub Confidence
- UNKNOWN
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.
Last updated 2026-03-26
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