Samson Solar 1

ERCOT-21INR0221BetaActiveSolarERCOTLBNL + Live

250 MW generation in Lamar, TX · In queue since November 2018 · Proposed COD June 2026

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

250 MW

Capacity

Components

Solar

7y 8m

In Queue

IA Executed

IA Phase

Signed Aug 2020

Status

as of 5y 5m ago

Latest milestoneconstruction began · 2020-07Earth911 · 2021-02-01

Expected COD2023Earth911 · 2021-02-01

Interconnection

Queue → IA

1y 9m

IA → COD

5y 10m

Total Duration

1y 9m

Schedule

0 months past proposed COD

Construction75%

Queue EntryNov 20, 2018

Interconnection request submitted to ISO/RTO

Interconnection Study

ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.

Typical: 18–30 months (fastest major ISO)

Interconnection AgreementAug 26, 2020

Interconnection agreement executed — binding commitment to build

Typical: 30–60 days (negotiation)

ConstructionCurrent

Project under construction

Typical: 12–24 months

Commercial Operation

Proposed COD: 2026-06-30

Cross-source intelligence

Beta

High confidence·7 sources·as of 2026-06-01

Expected COD

2023

Queue date 3+ years staleQueue: 2026-06-30

Developer

Invenergy

Filed as Samson Solar Energy LLC

Status

IA Executed

IA Executed — project appears operational or near-operational as of 2023 target, though severe weather damaged panels in March 2025 per KETK report

Financing

Secured

US$170 million tax equity from Monarch Private Capital for Phase 2, closed September 2024 per PV Tech

Ownership history

2026-04·Invenergy (100%)→WEC Energy Group (80%) / Invenergy (20%)source

Key milestones

GroundbreakingJul 2020

Construction began on Samson Solar Energy Center

source

IA executedAug 26, 2020

Interconnection Agreement executed with ERCOT

source

COD target2023

Expected commercial operation date per developer announcements

source

Financing closeSep 2024

Monarch Private Capital closed US$170M tax equity for Phase 2

source

Ownership changeApr 2026Most recent

WEC Energy Group acquired 80% ownership interest

source

Project lifecycle

as of 2024-09-17

PhaseConstructionNS Energy · 2020-12-21

OperationalNoPV Tech · 2024-09-17

TechnologySolarPV Tech · 2024-09-17

DeveloperInvenergyPV Tech · 2024-09-17

PPA offtakerAT&T, Honda, McDonald's, GoogleEarth911 · 2021-02-01

Tax-equity partnerMonarch Private CapitalPV Tech · 2024-09-17

GroundbreakingAnnouncedEarth911 · 2021-02-01

About

The Samson Solar 1 project is a proposed 250 MW solar generation facility in Lamar County, Texas. Developed by Samson Solar Energy LLC, the project is interconnected within the ERCOT region under queue ID ERCOT-21INR0221. The project entered the interconnection queue on November 20, 2018, and has a proposed commercial operation date of June 30, 2026. An Interconnection Agreement (IA) was executed on August 26, 2020.

The proposed project is linked to the existing Samson Solar Energy III LLC operating plant (EIA plant ID 63883). Recent news coverage indicates activity related to the project, with articles appearing in industry, regulatory, and deals categories.

Generated from interconnection queue and public data sources

ERCOT Queue EIA Plant Profile

Development Risk

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.

Available on the InfraSure platform

See the full development-risk decomposition for this project.

P(COD by stated date)

Financing close probability

EPC + tax-equity counterparty

Project Details

State

County

Lamar

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Samson Solar Energy LLC

Utility

—

Entity

ERCOT

Service Type

—

Point of Interconnection

tap both 345kV 1685 FarmersVl - 1695 Moses ckts

Data Source

LBNL + Live

DeveloperInvenergyPV Tech · 2024-09-17

TransactionTax equityPV Tech · 2024-09-17

Deal value$170.0MPV Tech · 2024-09-17

OfftakerMonarch Private CapitalPV Tech · 2024-09-17

LenderMonarch Private CapitalPV Tech · 2024-09-17

Risk Analytics

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.

Available on the InfraSure platform

See the full risk decomposition + scenarios for this project.

Climate hazards (8+)

Generation variability (P10/P50/P90)

Offtake + transmission counterparty

Generation Forecast

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.

Available on the InfraSure platform

See the full forecast + scenario decomposition for this project.

10-year P50 forecast

First-year output estimate

Weather + policy scenarios

Financial Forecast

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.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

10-year revenue projection

First-year DSCR

Financing close risk

Market Context

Approximate

ISO / RTO: ERCOT
Trading Hub: HB_NORTH
Hub Confidence: MEDIUM
Nearest Node (Estimated): IMP_RN1

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.

Linked EIA Plant

Samson Solar Energy III LLCEIA 63883

High match78% confidence

View Plant

Insights & Articles (4)Beta