Holstein 1 Solar Farm
Duke Energy Renewables Services · Nolan County · ERCOT
Holstein 1 Solar Farm is a solar power facility with 200 MW of EIA-reported operating capacity in Nolan County, Texas, registered as EIA Plant ID 61962. Duke Energy Renewables Services owns and operates the plant. Project filings list 709,000 solar panels for the facility. Duke Energy Renewables acquired the project from 8minute Solar Energy in 2019. Commercial operation began on July 7, 2020.
Overview
Key fields
- Reported capacity
- 200 MW
EIA-reported operating capacity; nameplate, seasonal, AC/DC, and unit ratings may differ.
- Technology
- Solar Photovoltaic
Primary generation technology.
- Registry anchor
- Plant 61962
Duke Energy Renewables Services · Nolan County · ERCOT
- Operating status
- Operating
Holstein 1 Solar Farm is operating.
Equipment
- 709,000 panels
Installed equipment documented in public project records.
- Commercial operation
- July 7, 2020
Best-supported operating milestone.
- Resource stack
- 2 resources
HOLSTEIN_SOLAR1 · HOLSTEIN_SOLAR2
Profile
- Grid role
- Utility-scale solar generation in ERCOT's energy-only market.
- Context
- When it entered commercial operation in July 2020, Duke Energy described Holstein as its largest solar project in Texas.
- Physical build
- 200‑MWac (≈280 MWdc) Holstein 1 Solar Farm in Nolan County, TX. EPC: Blattner Energy (design, procurement of inverters, balance-of-plant systems and construction). O&M: First Solar Energy Services (5‑year O&M contract). Installed equipment reported in sources: >709,000 solar panels across ~1,300 acres; single-axis trackers provided by NEXTracker; inverters procured by Blattner and supplied by Power Electronics (model / inverter count not specified in available sources).
Structured profile
- Reported capacity
- 200 MW
Solar Photovoltaic
- Commercial operation
- July 7, 2020
- Operating status
- operating
Holstein 1 Solar Farm is operating.
- Location
- Nolan County
ERCOT
- Operator
- Duke Energy Renewables Services
- Asset role
- solar
ERCOT · Nolan County
- Owner
- Duke Energy Renewables Services
These owner/operator statements support listing Duke Energy Renewables Services as the public owner/operator name.
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| HSF01 | 200 MW 200 MW summer | Solar Photovoltaic Solar · PV | Jun 2020 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 200 MW
- National rank
- #140
- TX rank
- #64
Monthly generation
Download CSVMonthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
ERCOT disclosed dispatch
2 ERCOT market resources · Solar
Generation
3 mo through May 22, 2026Capacity factor is average output vs. this plant's observed peak.
Output by hourlocal time · 90 days through May 22, 2026
Latest disclosed outputhourly · 2 weeks ending May 22, 2026
Generation from ERCOT's 60-Day SCED Disclosure (≈60-day lag), summed over this site's market resources.
Grid and market context
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Market registration
ERCOT public disclosuresOperating context
ERCOT market recordsInterconnection record
ERCOT GIS ReportMatched to the latest available ERCOT generation-interconnection queue record. Queue status and completion dates describe the queue record; operating status is verified separately against plant and market registrations.
Nearby substations
HIFLD infrastructure inventoryCommercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Land and environmental record
Related parties and identifiers
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Relationship graph
Drag organizations to explore the network. Select a node to pin its details and available page link.
Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Operator | Current owner; acquired the project from 8minute Solar Energy in 2019. | |
| Developer | Prior owner; sold the project to Duke Energy Renewables in 2019. | |
| Portfolio tax equity investor | Financing covers a portfolio that includes Holstein 1 Solar Farm. | |
| Portfolio financier | Financing covers a portfolio that includes Holstein 1 Solar Farm. | |
| Market resources | HOLSTEIN_SOLAR1, HOLSTEIN_SOLAR2 | Linked ERCOT resources. |
| Grid selection | plant:plant-61962 | Canonical asset page /ercot/assets/plant/holstein-1-solar-farm. |
Reporting portfolio
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Construction BeganDuke Energy...
- Acquisition ClosedDuke Energy...
Duke Energy Renewables acquired the 200-MW Holstein solar project from 8minute Solar Energy for $194 million.
- Financing ArrangedDuke Energy...
CIT led a financing arrangement reported in July 2019 (report cited ~$204.5M arranged) and SunTrust was named as a tax‑equity investor in contemporaneous announcements.
- Acquisition Announced280 Megawat...
Duke Energy Renewables announced acquisition of the 200‑MW Holstein project from 8minute Solar Energy (announcement dated July 22, 2019).
- Generator enters operationEIA-860
EIA-860 lists generator HSF01 with this operating date.
- Commercial Operation (COD)280 Megawat...
Duke Energy reported the Holstein project achieved commercial operation on July 7, 2020.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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