Aer Soléir announced on January 12, 2026, that it has completed financing for its flagship battery storage project, Rondissone. The 250 MW facility with a four-hour duration represents the largest battery energy storage system (BESS) under construction in Italy, with a total project cost of approximately EUR 180 million.

Project Location and Specifications

The Rondissone project is located in Piedmont, which is part of the Italy Nord Power Zone. The facility operates as a 250 MW battery energy storage system with four-hour duration capabilities, making it the largest BESS project currently under construction in the Italian market.

Financing Structure and Banking Consortium

Centrus served as the project's debt and hedging advisor, structuring the transaction with senior debt facilities that provide up to 80% of the capital expenditure on a long-term, 15-year amortization profile. The financing represents a first-of-its-kind financing deal for a BESS asset in the Italian market.

A consortium of leading banks provided the financing, including Bayern LB, Nord/LB, CIBC, Siemens Financial Services through Siemens Bank, and ABN AMRO. The transaction marks a significant milestone in Italian energy storage project financing.

Revenue Contracts and Market Agreements

The Rondissone project secured a 15-year Capacity Market Contract with the Italian Government in the first quarter of 2025. Additionally, the project entered into a 7-year fixed toll agreement with EGO Energy in the third quarter of 2025, providing revenue stability for the facility's operations.

Strategic Investment Plans

The EUR 180 million Rondissone project is the first part of Aer Soléir's planned EUR 1.5 billion capital deployment in Italy. The company intends to develop this investment across 17 wind, solar, and battery storage projects over the next five years.

Manus O'Donnell, Co-Founder and CFO of Aer Soléir, stated, “We are delighted to reach this closing milestone in collaboration with our banking partners. This market leading project financing further strengthens Aer Soléir's reputation as a best-in-class renewable energy IPP, and we are well positioned to continue expanding our footprint and supporting Europe's accelerating energy transition.”

Company Background and Corporate Structure

Aer Soléir operates as an affiliate of 547 Energy, Quantum Capital Group's clean energy investment platform. Quantum Capital Group is a Houston-based provider of private capital to the global energy and energy transition industry, managing more than USD 32 billion in equity commitments since inception.

The company focuses on investing in sustainable infrastructure projects in Europe from early-stage development through to Final Investment Decision and beyond. Aer Soléir develops large-scale onshore wind, solar PV, and energy storage projects designed to provide economic benefits to local communities.

Quantum Capital Group was founded in 1998 and has established itself as a leading provider of private capital to the global energy and energy transition industry. Together with its affiliates, Quantum has managed more than USD 32 billion in equity commitments since its inception.

Professional Advisory Team

The transaction involved several professional advisory firms. Centrus served as the sponsor, the debt advisor, and the hedging advisor for the project. Ashurst provided legal advisory services to the sponsor, while DLA Piper served as the lender's legal advisor for the financing arrangement.

The successful completion of the Rondissone project financing demonstrates the growing institutional support for battery energy storage systems in the Italian market. The project's scale and financing structure establish a precedent for future BESS developments in Italy's renewable energy sector.

Connect with Decision-makers about the Latest Battery Energy Storage System (BESS) Projects in Italy for business Opportunities.

Subscribe to our database on BESS Projects and Tenders in Italy to get access to reliable and high-quality insights on upcoming, under-construction, and completed BESS Projects across the world or in your desired geographical location.

Our user-friendly platform provides essential details, timely updates, key stakeholder contact information, and business opportunities tailored for engineering companies, industry professionals, investors, and government agencies.