EIB, Natixis, and Sunprime sign €507 million financing for Italian solar and battery storage program

Type: Financing · Technology: Hybrid · Country: Italy · Capacity: 290 MW · Announced: 2026-03-17

The European Investment Bank (EIB), Natixis Corporate & Investment Banking, and Sunprime Holdings have signed a project finance operation worth up to €507 million to support Project Sophocles, a solar and battery storage investment program in Italy. The program will support the development of approximately 200 solar PV plants with a combined capacity of 290 MWp, alongside 350 MW of battery energy storage systems. The EIB will provide up to €271 million in financing for this portfolio, which is expected to generate 416 GWh of renewable electricity annually, enough to supply over 160,000 Italian households. The portfolio will be structured into six to 12 cross-collateralized clusters, with Sunprime Holdings acting as the promoter. Most installations will be located on industrial rooftops and existing commercial surfaces, aiming to limit land use impacts.

Analysis

The €507 million financing for Project Sophocles in Italy represents a significant commitment to hybrid renewable energy, combining 290 MWp of solar PV with 350 MW of battery energy storage systems. This structure, supporting approximately 200 plants, allows for greater grid stability and dispatchability compared to standalone solar, addressing intermittency challenges inherent in renewable generation. Sunprime Holdings, as the promoter, benefits from a robust financing package that will generate 416 GWh of renewable electricity annually, sufficient for over 160,000 Italian households. The decision to locate most installations on industrial rooftops and existing commercial surfaces specifically aims to mitigate land use impacts, a critical consideration for large-scale renewable deployment in densely populated regions like Italy. Structuring the portfolio into 6 to 12 cross-collateralized clusters provides financial efficiency and risk diversification for the lenders across a broad asset base. The European Investment Bank (EIB) is providing up to €271 million, aligning with its mandate to finance projects supporting EU policy objectives, including sustainable development within the Union. Natixis Corporate & Investment Banking, a global financial institution with a strong focus on infrastructure and energy transition, joins the EIB as a lender, further solidifying its presence in complex project finance operations. Sunprime Holdings, as the borrower and promoter, secures the necessary capital to execute Project Sophocles, expanding its portfolio with a substantial hybrid energy program in Italy. Ashurst LLP, a global law firm with £879 million in FY23 revenue and 28 offices across 15 countries, provided legal counsel on the sell-side, leveraging its expertise in complex infrastructure and energy transactions. Legance, a law firm based in Spain advising renewables clients, acted as legal counsel for the buy-side, while KPMG, AON, ValeCap, and Praxi provided advisory services, underscoring the multi-faceted expertise required for a financing of this scale.

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