SUNBEAM STORAGE
100.9 MW storage in San Mateo, CA · In queue since April 2021 · Proposed COD February 2034
100.9 MW
Capacity
1
Components
Battery
5y 3m
In Queue
IA Executed
IA Phase
Signed Nov 2025
Queue → IA
4y 7m
IA → COD
8y 3m
Total Duration
4y 7m
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: 2034-02-19
The Sunbeam Storage project is a proposed 100.9 MW battery energy storage system located in San Mateo County, California. The project is in the California Independent System Operator (CAISO) interconnection queue as entry CAISO-1919, with a queue entry date of April 15, 2021. Pacific Gas & Electric (PGAE) is the utility. The proposed commercial operation date is February 19, 2034, and the project's interconnection status is currently in the System Impact Study phase.
The project consists of 100.9 MW of battery storage. The point of interconnection is Cooley Landing 60 kV. The project has appeared in recent news coverage.
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
San Mateo
Grid Region
CAISO (California)
Market
ISO/RTO Member
Developer
—
Utility
PGAE
Entity
CAISO
Service Type
NRIS
Point of Interconnection
Cooley Landing 60 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_ZP26_GEN-APND
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- BLLEHVN_6_N002
- POI Substation
- Cooley Landing 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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