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Rodeo Ranch Energy Storage

Tier 1 Spotlight on the Largest Standalone BESS in ERCOT at Commissioning

Rodeo Ranch Energy Storage is the 300 MW / 600 MWh standalone battery energy storage system operated by Plus Power near Pecos in Reeves County, Texas, operational since December 2023. At the time of commissioning, Rodeo Ranch was the largest operational standalone battery energy storage facility in ERCOT. The facility occupies approximately 13 acres adjacent to Texas-New Mexico Power's (TNMP) 138kV Worsham Substation, providing direct interconnection to the West Texas transmission grid in the Permian Basin substrate. Total project capital represents approximately $488 million across $212.2 million in tax equity financing from Foss & Company plus $276 million in construction and term financing arranged by Deutsche Bank, First Citizens Bank, and Siemens Financial Services. Goldman Sachs commodities executed an innovative hedge for a portion of the project's output.

Site and Interconnection

The Rodeo Ranch facility occupies approximately 13 acres of land near Pecos in Reeves County, Texas, in the West Texas Permian Basin substrate. The site's specific positioning adjacent to TNMP's 138kV Worsham Substation represents one of the most analytically important structural advantages: direct interconnection to the West Texas transmission grid without requiring substantial new transmission infrastructure construction. Reeves County positioning places the facility within the broader Permian Basin substrate that anchors a substantial portion of US oil and natural gas production, plus the broader West Texas wind generation substrate (Roscoe Wind Farm at approximately 200 miles east; broader King Ranch wind cluster in South Texas) and emerging West Texas utility-scale solar generation.

The 138kV Worsham Substation provides direct grid interconnection at the transmission voltage level, supporting the facility's ability to participate in ERCOT wholesale energy and ancillary services markets without distribution-level routing constraints. The interconnection framework's structural advantage operates through what the broader West Texas substrate enables: associated natural gas generation from Permian oilfield operations, wind generation from West Texas resource zones, plus utility-scale solar generation across the broader West Texas substrate combine to create generation oversupply periods during off-peak demand. Rodeo Ranch's BESS substrate captures off-peak generation surplus and redeploys it during peak demand periods, providing structural value beyond ancillary services alone.

Capital Reality and Financing Framework

Rodeo Ranch's capital framework operates across multiple coordinated tiers reflecting the broader Plus Power Texas portfolio scaling. The total project capital of approximately $488 million combines $212.2 million in tax equity financing from Foss & Company plus $276 million in construction and term financing arranged by Deutsche Bank and First Citizens Bank as coordinating lead arrangers, with First Citizens Bank as administrative agent and Siemens Financial Services as joint lead arranger. The tax equity transaction represents one of the largest standalone BESS tax equity financings completed since the Inflation Reduction Act made standalone energy storage eligible for the financing mechanism at the start of 2023. Plus Power's broader portfolio financing combined Rodeo Ranch with the Ebony Energy Storage facility (200 MW / 400 MWh, Comal County) plus the Anemoi Energy Storage facility (200 MW, location undisclosed) within an $884 million Texas portfolio financing.

Operational Framework and Grid Services

Rodeo Ranch operates as a merchant project in the ERCOT wholesale market, competing with all other generation and storage resources to provide energy, ancillary services, and grid stabilization at the lowest cost. The facility's 2-hour duration (300 MW rated power with 600 MWh energy capacity) is the standard utility-scale BESS configuration optimized for the ERCOT market's specific operational requirements: capture of solar generation surplus during midday off-peak periods, redeployment during evening peak demand periods (typically 7 PM to 8 PM when solar production winds down but temperatures remain high), plus ancillary services provision (frequency regulation, contingency reserve, voltage support) supporting overall grid stability.

Permian Basin Substrate Integration

The Reeves County positioning places Rodeo Ranch within the broader Permian Basin substrate, creating structural integration opportunities that distinguish the facility from peer BESS deployments in eastern Texas urban substrates. The Permian Basin operates as the world's largest oil-producing region at approximately 6 million barrels per day (covered at the Permian Basin spotlight), generating substantial associated natural gas as a byproduct. The associated gas substrate powers a significant portion of ERCOT generation capacity, particularly during peak demand periods when natural gas peaker plants provide marginal generation. Rodeo Ranch's BESS substrate operates as a complement to this generation framework: capturing oversupply during off-peak periods and redeploying during peak periods, smoothing the natural gas dispatch profile while reducing marginal generation costs.

The broader West Texas energy substrate provides additional integration context. Roscoe Wind Farm (approximately 200 miles east at Nolan County) anchors the Texas wind generation substrate; broader West Texas wind resource zones support wind generation scaling. Utility-scale solar generation across West Texas has expanded substantially through 2024-2025, with multiple gigawatt-scale projects entering operation. The combination of West Texas wind, solar, and associated natural gas generation creates substantial off-peak generation surplus that BESS substrate can capture and redeploy. Rodeo Ranch's positioning at TNMP's Worsham Substation provides direct transmission access to this broader generation substrate without requiring substantial new transmission infrastructure.

Convergence Position

Rodeo Ranch operates at a structurally distinctive convergence position within multiple Texas and US frameworks. Within the broader Texas energy substrate (covered at ERCOT Energy Sovereignty), Rodeo Ranch anchors the BESS storage substrate at Tier 1 flagship scale alongside the Permian Basin oil and gas substrate, Roscoe / King Ranch Wind Cluster, Samson Solar Energy Center, and Comanche Peak Nuclear. Combined, these five facilities represent the flagship operations in their respective energy substrate categories.

Outlook

Rodeo Ranch represents one of the most structurally significant emerging US BESS operations. The combination of 300 MW / 600 MWh standalone capacity (largest in ERCOT at commissioning), approximately $488 million in total project capital, Reeves County positioning within the broader Permian Basin substrate, TNMP 138kV Worsham Substation interconnection, plus Plus Power's leading position in the ERCOT BESS market positions Rodeo Ranch as one of the most distinctive emerging US BESS operations.

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