Grimes County Solar
211.25 MW generation in Grimes, TX · In queue since January 2021 · Proposed COD November 2025
211.25 MW
Capacity
1
Components
Solar
5y 6m
In Queue
IA Executed
IA Phase
Signed Jun 2022
Queue → IA
1y 5m
IA → COD
3y 5m
Total Duration
1y 5m
Schedule
7 months past proposed COD
Interconnection request submitted to ISO/RTO
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 12–24 months
Proposed COD: 2025-11-30
The Grimes County Solar project is a proposed 211.25 MW solar generation project located in Grimes County, Texas. The developer is Grimes County Solar Project, LLC. This project is interconnected within the ERCOT region under queue ID ERCOT-23INR0160, with an interconnection queue entry date of January 26, 2021. The proposed commercial operation date is June 15, 2025, and the Interconnection Agreement (IA) was executed on June 22, 2022.
The proposed project is linked to the existing Grimes County Solar operating plant (EIA ID 67046). The project has also been mentioned 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
TX
County
Grimes
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Grimes County Solar Project, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
2 Keith Switch 138kV
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
- ERCOT
- Trading Hub
- HB_SOUTH
- Hub Confidence
- HIGH
- POI Substation
- Keith Switching Station
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 2026-03-26
View all articlesNo Ask reports yet for this entity.
Ask about Grimes County SolarForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
