Fourth Quarter
500 MW storage in Montgomery, MD · In queue since October 2020 · Proposed COD February 2030
500 MW
Capacity
1
Components
Battery
5y 9m
In Queue
IA Executed
IA Phase
COD target: 2030
Total Duration
9y 4m
Study Phase
TC1
Interconnection request submitted to ISO/RTO
PJM processes interconnection requests through multi-phase System Impact Studies (SIS).
Typical: ~48 months (historically longest)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2030-02-01
PJM awarded interconnection agreement to Fourth Quarter project among 23 BESS resources
sourceThe Fourth Quarter project is a proposed 500 MW battery storage project located in Montgomery County, Maryland. Interconnecting to PEPCO via the Dickerson 230 kV point of interconnection, the project is in the PJM interconnection queue as entry AG1-483, with a queue entry date of October 1, 2020. The proposed commercial operation date is June 1, 2024. As of the current interconnection status, the project is in the System Impact Study phase.
The Fourth Quarter project has been the subject of recent news coverage, with 30 articles published on the project. The news coverage primarily focuses on industry developments, with additional articles covering deals, grid infrastructure, and project development.
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
MD
County
Montgomery
Grid Region
PJM Interconnection
Market
ISO/RTO Member
Developer
Fourth Quarter BESS, LLC
Utility
PEPCO
Entity
PJM
Service Type
NRIS
Point of Interconnection
Dickerson 230 kV
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
- PJM
- Trading Hub
- WESTERN HUB
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- DICKERSH13 KV HCT1
- POI Substation
- Dickerson H 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.
Last updated 2026-03-14
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