TLT advises Eiffel Investment Group and BTS on financing for 9 new biomethane plants in Italy

UK law firm TLT has advised Green One, the joint venture between BTS DevCo (BTS Group) and Eiffel Gaz Vert (Eiffel Investment Group) on a multimillion-euro debt project financing provided by Deutsche Bank to support the development of nine biomethane plants across Italy — a milestone for Italy’s energy transition.

This landmark financing represents a significant private-sector contributions to Italy’s biomethane programme under the PNIEC and PNRR frameworks. It supports the country’s ambition to produce 5.7 billion m³ of biomethane annually by 2030, reinforcing Italy’s position as a European leader in renewable gas.

BTS Group is an Italian pioneer and a global leader in anaerobic digestion technology, with more than 25 years of experience in renewable energy solutions. Through its subsidiary BTS Biogas, the company designs, builds, and maintains biogas and biomethane plants — supported by its dedicated service team — across Europe, North America and East Asia, with more than 270 plants built to date.

Through its Eiffel Gaz Vert fund, Eiffel has been one of the earliest and most active private investors in Italy’s biomethane sector, providing flexible financing to accelerate the deployment of green-gas infrastructure alongside industrial partners.

The financing marks a pivotal step for Italy’s clean-energy transition, enabling the construction and conversion of nine biomethane plants across multiple regions. These assets will valorise agricultural waste and residues into renewable gas, supporting local farmers and SMEs while advancing Italy’s circular economy and energy independence.

TLT advised Green One on the negotiation of the English law finance documents and managed all aspects of the project finance transaction, including coordination with Studio Legale Volpe Italian counsel acting for Green One to achieve a successful financial close. The transaction was led by Victoria Quek, Partner in TLT’s Project Finance team, with support from Winnie Ma a Senior Associate in TLT’s Banking Department.

Marc-Etienne Mercadier, fund manager of Eiffel Gaz Vert said: “Biogas is a cornerstone of Europe’s energy transition. We are convinced of its unique potential to decarbonize industry, strengthen regional energy sovereignty, and create value from local agricultural resources — while shielding Europe against commodity volatility sparked by geopolitical instability. The outstanding collaboration between Green One and the TLT team led by Victoria was instrumental in completing this transaction on time, fully aligned with the GSE timeframe.”

Victoria Quek, Partner at TLT said: “This transaction reflects the broader patterns emerging in project financing in the future energy sector in the first half of 2025. The momentum behind biomethane and other renewable technologies is unmistakable. As funders and developers increasingly seek bankable, future-proofed structures, our role is to demystify the complexities of project financing and find solutions to support the acceleration of the energy transition. This was a complex cross-border project, requiring TLT to work closely with Green One, Eiffel and Deutsche Bank to ensure a successful completion for all. It was a pleasure to support Green One on this transaction.”

Franco Lusuriello, CEO of BTS Group said: “The success of this transaction, which marks a decisive step toward a greener Italy, is the result of the professionalism and synergy of all the partners involved from the very beginning. Alongside technical and industrial expertise, legal support has also proven essential in addressing and overcoming the challenges of such an ambitious project, enabling us to make a significant contribution to the country’s decarbonization and energy transition goals.”