RE Roserock
Southern Power Co · Pecos County · ERCOT
RE Roserock is a solar power facility with 157.5 MW of EIA-reported operating capacity in Pecos County, Texas, registered as EIA Plant ID 59994. Southern Power Co owns and operates the plant. Project filings list 700,000 solar panels for the facility. Southern Power Company acquired a 51% interest in the plant from Recurrent Energy in 2015.
Overview
Key fields
- Reported capacity
- 157.5 MW
EIA-reported operating capacity; nameplate, seasonal, AC/DC, and unit ratings may differ.
- Technology
- Solar Photovoltaic
Primary generation technology.
- Registry anchor
- Plant 59994
Southern Power Co · Pecos County · ERCOT
- Operating status
- Operating
RE Roserock is operating.
Equipment
- 700,000 panels
Installed equipment documented in public project records.
- Resource stack
- 2 resources
REROCK_UNIT1 · REROCK_UNIT2
Profile
- Grid role
- Utility-scale solar generation in ERCOT's energy-only market.
Structured profile
- Reported capacity
- 157.5 MW
Solar Photovoltaic
- Operating status
- operating
RE Roserock is operating.
- Location
- Pecos County
ERCOT
- Operator
- Southern Power Co
- Asset role
- solar
ERCOT · Pecos County
- Owner
- Southern Power Co
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| ROSEK | 160 MW 157.5 MW summer | Solar Photovoltaic Solar · PV | Nov 2016 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 160 MW
- National rank
- #245
- TX rank
- #90
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 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 |
|---|---|---|
| Operator | Current owner; acquired the project from Recurrent Energy in 2015. | |
| Developer | Prior owner; sold the project to Southern Power Company in 2015. | |
| Market resources | REROCK_UNIT1, REROCK_UNIT2 | Linked ERCOT resources. |
| Grid selection | plant:plant-59994 | Canonical asset page /ercot/assets/plant/re-roserock. |
Reporting portfolio
| Largest reported plants | Capacity | State |
|---|---|---|
| H Allen Franklin Combined Cycle | 1,995.7 MW | AL |
| E B Harris Electric Generating Plant | 1,304 MW | AL |
| Wansley Combined Cycle | 1,239 MW | GA |
| Rowan | 1,192 MW | NC |
| Dahlberg | 919 MW | GA |
| Cleveland Cnty Generating Facility | 736 MW | NC |
| Edward L. Addison Generating Plant | 701.2 MW | GA |
| Deuel Harvest Wind Energy LLC | 300 MW | SD |
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
- Acquisition ClosedSource
Southern Power acquired 51% controlling interest (class A membership interests) in the 157.5 MW Roserock solar project from Recurrent Energy / Canadian Solar. Initial cash contribution of $45,000,000 for class A membership interests; sale completed December 2015.
- Construction BeganSource
- Project-level financing closed (construction + term facilities)Recurrent E...
Recurrent Energy closed a combined construction and term debt facility in December 2015 with KeyBank as coordinating lead arranger and a five-bank syndicate (including Rabobank, Santander, NORD/LB and CIT) providing project construction debt, LC facilities and a back‑leveraged term facility totaling approximately $275 million.
- Commercial Operation (COD)Source
The project entered commercial operation in the fourth quarter of 2016 and began delivering energy under a 20‑year PPA with Austin Energy.
- Generator enters operationEIA-860
EIA-860 lists generator ROSEK with this operating date.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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