Roadrunner, LLC Hybrid
Enel Green Power · Upton County · ERCOT
Roadrunner is a solar-and-battery hybrid in Upton County, Texas. EIA's May 2026 inventory reports two photovoltaic generators totaling 400 MW AC and 497 MW DC plus a 63.3 MW / 108.6 MWh battery; operating net summer capability is 450 MW. Enel describes the solar project as 497 MW across a 252 MW first phase and 245 MW second phase, with 1.2 million bifacial panels, and describes the storage project as 57 MW / 85.7 MWh. The EIA and Enel figures use different AC, DC, seasonal, and developer scopes and are not interchangeable.
Overview
Key fields
- Operating net summer
- 450 MW
400 MW solar · 50 MW battery capability
- Solar AC / DC
- 400 MW / 497 MW
EIA May 2026
- EIA battery
- 63.3 MW / 108.6 MWh
EIA May 2026
- Enel battery scope
- 57 MW / 85.7 MWh
Developer project page
- Solar panels
- 1.2 million
Enel
- Registry anchor
- Plant 62561
Roadrunner Solar, LLC
Profile
- Grid role
- Co-located utility-scale photovoltaic generation and battery storage in ERCOT.
- EIA configuration
- 400 MW AC / 497 MW DC solar plus 63.3 MW / 108.6 MWh battery storage.
- Developer scope
- Enel reports 497 MW solar and 57 MW / 85.7 MWh storage.
- Operating phases
- Enel reports solar phases entering service in December 2019 and September 2020; EIA dates the battery to July 2023.
Structured profile
- Solar capacity
- 400 MW AC / 497 MW DC
EIA May 2026
- Battery rating
- 63.3 MW / 108.6 MWh
EIA May 2026
- Developer solar rating
- 497 MW
Enel
- Developer storage rating
- 57 MW / 85.7 MWh
Enel
- Panel count
- 1.2 million bifacial panels
Enel
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| BA | 63.3 MW 50 MW summer | Batteries Electricity used for energy storage · BA | Jul 2023 | Operating |
| RODR1 | 200 MW 200 MW summer | Solar Photovoltaic Solar · PV | Nov 2019 | Operating |
| RODR2 | 200 MW 200 MW summer | Solar Photovoltaic Solar · PV | Sep 2020 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 400 MW
- National rank
- #19
- TX rank
- #11
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.
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.
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
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Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Grid selection | plant:plant-62561 | Canonical asset page /ercot/assets/plant/roadrunner-llc-hybrid. |
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
- Generator enters operationEIA-860
EIA-860 lists generator RODR1 with this operating date.
- Generator enters operationEIA-860
EIA-860 lists generator RODR2 with this operating date.
- EIA battery operating dateEIA May 202...
EIA reports July 2023 for battery generator BA.
Sources
Related assets
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