Aer Soléir today announced it has completed the financing for its flagship battery storage project, Rondissone. At 250 MW with a four-hour duration, Rondissone is the largest battery energy storage system (BESS) under construction in Italy. The project is located in Piedmont, which is part of the Italy Nord Power Zone.

Centrus, the project’s debt and hedging advisor, structured the transaction with the senior debt facilities, providing up to 80% of the capex on a long-term, 15-year amortization profile. The financing is provided by a consortium of leading banks, Bayern LB; Nord/LB; CIBC; Siemens Financial Services through Siemens Bank and ABN AMRO in a first-of-its-kind financing deal for a BESS asset in the Italian market.

The total project cost is approximately €180 million and represents the first part of Aer Soléir’s €1.5 billion planned capital deployment in Italy across its 17 wind, solar and battery storage projects over the next five years. The Rondissone project won a 15-year Capacity Market Contract with the Italian Government in the first quarter of 2025 and entered into a 7-year fixed toll agreement with EGO Energy in the third quarter of 2025.

Manus O’Donnell, Co-Founder and CFO of Aer Soléir said: “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.”

About Aer Soléir

Aer Soléir is an affiliate of 547 Energy, the clean energy investment platform of Quantum Capital Group a Houston based, leading provider of private capital to the global energy and energy transition industry, managing more than $32 billion in equity commitments since inception. Aer Soléir invests in sustainable infrastructure projects in Europe from early-stage development through to Final Investment Decision and beyond. Aer Soléir is developing best-in-class, large-scale onshore wind, solar PV, and energy storage projects that will provide material, long-lasting economic benefits to local communities. Our vision is that one day, soon, everyone’s life will be electrified sustainably.

About Quantum Capital Group Founded in 1998, Quantum is a leading provider of private capital to the global energy and energy transition industry, having managed together with its affiliates more than $32 billion in equity commitments since inception. For more information on Quantum, please visit www.quantumcap.com.

Advisors

Sponsor Debt & Hedging Advisor: Centrus

Sponsor Legal Advisor: Ashurst

Lender Legal Advisor: DLA Piper