SILVER RIDGE MOUNT SIGNAL
750 MW hybrid in Imperial, CA · In queue since August 2006 · Proposed COD June 2027
750 MW
Capacity
2
Components
Solar + Battery
19y 11m
In Queue
IA Executed
IA Phase
Signed Jun 2012
Queue → IA
5y 10m
IA → COD
15 years
Total Duration
5y 10m
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 executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 18–30 months
Proposed COD: 2027-06-01
- 2014-06·AES Corp→SunEdisonsource
The Silver Ridge Mount Signal project is a proposed 750 MW hybrid solar and battery energy storage project in Imperial County, California. The development project consists of a 600 MW solar array coupled with a 150 MW battery energy storage system.
The project, assigned queue ID CAISO-124, is located within the CAISO region and is interconnected with San Diego Gas & Electric (SDGE) at the Imperial Valley Substation 230 kV. The project entered the CAISO interconnection queue on January 1, 1970, and has a proposed commercial operation date of June 1, 2027. The Interconnection Agreement (IA) has been executed as of January 1, 1970. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
Realization history for this asset — final cost vs plan, COD slip vs original date, and construction duration vs cohort. Retrospective context for the operating risk view above. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
CA
County
Imperial
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
SDGE
Entity
CAISO
Service Type
NRIS
Point of Interconnection
Imperial Valley Substation 230 kV
Data Source
LBNL + Live
Composite operating risk view for this asset — climate hazards across its remaining operating life, observed 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 — 10-year P50 trajectory accounting for degradation, observed curtailment, and market conditions, 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 bands, and refinancing risk for this asset — 10-year cashflow projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- ISO / RTO
- CAISO
- Trading Hub
- TH_SP15_GEN-APND
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- WESCAN_7_N002
- POI Substation
- Imperial Valley Substation
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.
Top solar plant owners in the US
Data tables and metrics from the InfraSure database.
Top solar plant owners in the US
Data tables and metrics from the InfraSure database.
Top 10 solar states
Data tables and metrics from the InfraSure database.
Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
