ALLEGHENY ENERGY STORAGE
353.2 MW storage in Contra Costa, CA · In queue since April 2021 · Proposed COD September 2032
353.2 MW
Capacity
1
Components
Battery
5y 3m
In Queue
IA Executed
IA Phase
Signed Aug 2025
Queue → IA
4y 4m
IA → COD
7y 1m
Total Duration
4y 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 executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2032-09-20
The ALLEGHENY ENERGY STORAGE project is a proposed 353.2 MW battery storage development in Contra Costa County, California. The project is located within the CAISO region and is interconnected with Pacific Gas & Electric (PGAE). It entered the CAISO interconnection queue as queue ID CAISO-1872 on April 15, 2021, with a proposed commercial operation date of September 20, 2032. Its interconnection status is currently in the System Impact Study phase.
The ALLEGHENY ENERGY STORAGE project has been the subject of recent news coverage, with 18 articles appearing in the press. These articles primarily focus on regulatory and industry aspects of 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
CA
County
Contra Costa
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
PGAE
Entity
CAISO
Service Type
NRIS
Point of Interconnection
Pittsburg 115 kV
Data Source
LBNL + Live
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
- CAISO
- Trading Hub
- TH_NP15_GEN-APND
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- PITTES1_2_N007
- POI Substation
- Pittsburg 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.
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Ask about ALLEGHENY ENERGY STORAGEForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
