Centrus advises Aer Soléir on the successful financing of its flagship Rondissone battery storage project in Italy

Transaction overview

Aer Soléir 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 amortisation 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.”

“Centrus is delighted to have advised Aer Soleir on this landmark BESS financing in Italy. Rondissone is the largest battery storage project under construction in Italy and is very attractive from a lending perspective, partly benefitting from a 15-year capacity market revenue stream from 2027, helping secure market-leading terms on a long-dated debt package.”

Scott Douglas, Senior Director, Head of Debt Advisory – Centrus

For more information, please contact Scott Douglas, Senior Director, Head of Debt Advisory or Mark Taheny, Managing Director, Head of Risk advisory

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