Eni's 330 MW solar park goes live in Spain, adding 670 GWh annually

For climate watchers, every megawatt of new solar capacity is a step toward decarbonization, but not all projects are created equal. Plenitude's Renopool complex doesn't just add 200 MW to Spain's grid—it demonstrates how large-scale renewables can coexist with cultural heritage and ecological stewardship, setting a replicable model for a net-zero future.

Eni’s renewables arm Plenitude has successfully commissioned the second 200 MW block of its Renopool photovoltaic project in Solana de los Barros, Badajoz, Extremadura, Spain, bringing the entire facility to its full 330 MW capacity. This represents the largest solar installation ever built by the company globally and is a significant milestone in Eni’s broader decarbonisation strategy. The southern plant’s entry into service, following the 130 MW northern plant that began operating in June 2025, marks the completion of a project initiated in February 2024 and delivered on time. Renopool’s estimated annual output of 670 GWh will contribute materially to Spain’s renewable energy targets and to Europe’s push for energy independence.

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Eni’s renewables arm Plenitude has successfully commissioned the second 200 MW block of its Renopool photovoltaic project in Solana de los Barros, Badajoz, Extremadura, Spain, bringing the entire facility to its full 330 MW capacity.

The project was constructed with high-efficiency bifacial modules—approximately 565,000 in total—which capture sunlight from both sides, boosting energy yield. Plenitude emphasized optimized land use, integrating the solar arrays into the local topography to minimize environmental disruption. The two-year construction timeline highlights the company’s capacity to execute utility-scale solar projects rapidly, a competitive advantage in an industry where permitting and grid connection delays often derail timelines.

Beyond the technical achievements, the Renopool development underscores a growing trend in renewable energy: harmonizing clean power generation with cultural and ecological stewardship. During construction, archaeological findings dating to the Chalcolithic period (Copper Age) were uncovered. Plenitude collaborated with the Region of Extremadura and the Municipality of Badajoz to catalog and preserve these discoveries, integrating them into the project design rather than treating them as obstacles. This approach, along with long-term biodiversity initiatives mandated during the authorization process, sets a benchmark for responsible solar development in historically rich regions.

Economically, the project generated significant local employment during construction, though the exact job numbers were not disclosed. The investment in Extremadura, a region with high solar irradiation, aligns with Spain’s strategy to position itself as a European renewable energy hub. For Eni, this project adds to a growing portfolio that includes solar, wind, and energy storage assets as the Italian oil major gradually shifts from hydrocarbons. Plenitude, which also operates retail energy and e-mobility businesses, will likely use the output to supply green power to its European customer base, possibly through power purchase agreements (PPAs) or spot market sales.

Market implications are positive for Eni’s environmental, social, and governance (ESG) profile. The timely completion and community engagement may bolster its standing with sustainability-focused investors. However, the company faces the ongoing challenge of balancing renewable expansion with its still-dominant oil and gas business. In the Spanish market, the new capacity adds to a glut of solar generation, which has driven wholesale electricity prices to record lows during sunny hours. This cannibalization effect could pressure returns unless complemented by battery storage or green hydrogen integration. Plenitude’s future projects will likely need to incorporate storage solutions to capture value beyond the immediate generation.