South Plains II
Onward Energy · Floyd County · ERCOT
South Plains II is a 300 MW wind facility in Floyd County, Texas. EIA's May 2026 inventory reports one operating generator dated June 2016 and lists Onward Energy as operator. Onward's 2022 sustainability report lists the plant as a 300 MW, 100%-owned Vestas facility with a 2016 commercial-operation year. ERCOT maps the plant to the SPLAIN2_RN settlement point. The public Onward record does not identify a turbine count or model, so those details are not asserted here.
Overview
Key fields
- Operating capacity
- 300 MW
EIA May 2026
- Ownership
- 100%
Onward Energy
- Turbine OEM
- Vestas
Onward Energy
- Operating month
- Jun 2016
EIA May 2026
- Settlement point
- SPLAIN2_RN
ERCOT settlement point.
- Registry anchor
- Plant 60087
Onward Energy
Resource stack
- 2 resources
SPLAIN2_WIND21 · SPLAIN2_WIND22
Profile
- Grid role
- Utility-scale wind generation in ERCOT's West region.
- Current ownership
- Onward Energy reports 100% ownership.
- Equipment disclosure
- Onward identifies Vestas as turbine OEM; count and model are not published without a direct source.
- Market mapping
- ERCOT's current public settlement-point list includes SPLAIN2_RN.
Structured profile
- Operating capacity
- 300 MW
EIA May 2026
- Current owner and operator
- Onward Energy
100%
- Turbine OEM
- Vestas
Onward sustainability report
- Commercial operation
- 2016
EIA and Onward
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| SPII | 300 MW 300 MW summer | Onshore Wind Turbine Wind · WT | Jun 2016 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 300 MW
- National rank
- #71
- TX rank
- #25
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 · Wind
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 recordsNearby 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 |
|---|---|---|
| Project company | South Plains Wind Energy II, LLC | South Plains II PUCT filing |
| Turbine supplier | Onward 2022 sustainability report | |
| Market resources | SPLAIN2_WIND21, SPLAIN2_WIND22 | Linked ERCOT resources. |
| Grid selection | plant:plant-60087 | Canonical asset page /ercot/assets/plant/south-plains-ii. |
Reporting portfolio
| Largest reported plants | Capacity | State |
|---|---|---|
| South Plains IICurrent | 300 MW | TX |
| RE Maplewood | 250 MW | TX |
| Twiggs Solar | 204 MW | GA |
| Bingham Wind | 186 MW | ME |
| Route 66 Wind Plant | 150 MW | TX |
| Oakfield Wind Project | 148 MW | ME |
| Comanche Solar | 120 MW | CO |
| Palouse | 105.3 MW | WA |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioTimeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Generator Entered ServiceEIA May 202...
EIA reports June 2016; Onward reports a 2016 COD.
- Onward emergency plan filedSouth Plain...
A PUCT filing identifies South Plains Wind Energy II, LLC and Onward's operating organization.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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