GNARLY OSAGE
304.4 MW storage in San Diego, CA · In queue since April 2021 · Proposed COD August 2027
304.4 MW
Capacity
1
Components
Battery
5y 3m
In Queue
System Impact Study
IA Phase
COD target: 2027
Total Duration
6y 4m
Study Phase
C14
Interconnection request submitted to ISO/RTO
CAISO uses cluster studies where projects are batched annually and studied together.
Typical: 36–48 months (IR to IA)
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2027-08-07
Entered CAISO interconnection queue as Q2157, System Impact Study phase
sourceThe Gnarly Osage project is a proposed 304.4 MW battery storage project located in San Diego County, California. Interconnecting to the CAISO grid at the Encina Substation 138 kV, the project entered the CAISO queue as queue ID CAISO-2157 on April 15, 2021. The proposed commercial operation date is August 7, 2027. The project's interconnection status is currently in the System Impact Study phase.
The development project is sponsored by SDGE. Recent news coverage has discussed the project's progress in the interconnection queue.
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
CA
County
San Diego
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
SDGE
Entity
CAISO
Service Type
NRIS
Point of Interconnection
Encina Substation 138 kV
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
- CAISO
- Trading Hub
- TH_ZP26_GEN-APND
- Hub Confidence
- LOW
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 GNARLY OSAGEForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
