# Holstein 1 Solar Farm

ERCOT asset profile · https://askthegrid.com/assets/facilities/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.

## 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).

## Metrics

- **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. ([source](https://www.firstsolar.com/en/Products/Series-6))
- **Commercial operation:** July 7, 2020 — Best-supported operating milestone.
- **Resource stack:** 2 resources — HOLSTEIN_SOLAR1 · HOLSTEIN_SOLAR2

## Facts

- **Reported capacity:** 200 MW — Solar Photovoltaic · confidence: high
- **Commercial operation:** July 7, 2020 · confidence: medium
- **Operating status:** operating — Holstein 1 Solar Farm is operating. · confidence: medium
- **Location:** Nolan County — ERCOT · confidence: high
- **Operator:** Duke Energy Renewables Services · confidence: high
- **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. · confidence: medium

## Related parties

- **Operator:** Duke Energy Renewables Services — Current owner; acquired the project from 8minute Solar Energy in 2019. ([source](https://www.duke-energy.com/))
- **Developer:** 8minute Solar Energy — Prior owner; sold the project to Duke Energy Renewables in 2019. ([source](https://8minute.com/))
- **Portfolio tax equity investor:** SunTrust (now part of Truist Financial) — Financing covers a portfolio that includes Holstein 1 Solar Farm. ([source](https://www.truist.com/))
- **Portfolio financier:** CIT Group — Financing covers a portfolio that includes Holstein 1 Solar Farm. ([source](https://www.cit.com/))

## Sources

- [~* TEX>~ - Texas.gov](https://interchange.puc.texas.gov/Documents/56969_24_1434139.PDF) — interchange.puc.texas.gov · regulatory — Oct 10, 2024 — Solar. 241.74 138 kV.
- [Cover Page](https://www.ercot.com/files/docs/2023/02/23/SolarPowerForecastMonthly_Jan2023_WMWG.xlsx) — ercot.com · regulatory — Feb 23, 2023 — HOLSTEIN_SOLAR2, CenterWest, 102, 2958101.
- [summary](https://www.ercot.com/files/docs/2022/12/19/ERCOT-SolarPVProfiles-1980-2021-Key-public.xlsx) — ercot.com · regulatory — Dec 19, 2022 — HOLSTEIN_SOLAR1, HOLSTEIN SOLAR FARM, Nolan, West, 102.2, NO.
- [Duke Energy Renewables' largest solar project now online...](https://news.duke-energy.com/releases/duke-energy-renewables-largest-solar-project-now-online-in-texas) — news.duke-energy.com · other — Jul 7, 2020 — The 200-MWac Holstein Solar project contains over 709,000 solar panels across approximately 1,300 acres in Wingate, Texas. The facility will
- [Duke Energy Renewables acquires 200-MW Holstein solar...](https://news.duke-energy.com/releases/duke-energy-renewables-acquires-200-mw-holstein-solar-project-in-texas-from-8minute-solar-energy) — news.duke-energy.com · other — Duke Energy Renewables is expanding its solar energy
- [Holstein Solar Project – Sale and Financing with Energy...](https://ccagp.com/transactions/8minutenergy-renewables-llc/) — ccagp.com · other — Holstein solar project representing 200 MW located in Texas.
- [Series 6 Family](https://www.firstsolar.com/en/Products/Series-6) — firstsolar.com · other — First Solar Series 6 Plus PV modules are built to perform and built to last. Combining superior performance with durability — and a proven record of

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Canonical page: https://askthegrid.com/assets/facilities/holstein-1-solar-farm
Website: [Duke Energy Renewables Services](https://news.duke-energy.com/releases/duke-energy-renewables-largest-solar-project-now-online-in-texas)
Profile published: 2026-07-17T03:34:25.381Z
Source: Ask the Grid — https://askthegrid.com/