The document explores the sustainable transition of Italian banks towards the adoption of renewable energy sources. It analyzes the use of three main leverages: self-production of energy from renewable sources (FER), participation in Renewable Energy Communities (CER), and the use of Power Purchase Agreements (PPA). It highlights the importance of sustainability in the banking sector and the growing interest in solutions that contribute to carbon neutrality. ABI Lab's survey shows that many banks are planning investments in renewable energy, with 55% considering PPAs as fundamental tools in their ESG strategy. It also discusses the challenges and opportunities related to these initiatives and the importance of governmental and regulatory incentives to facilitate financing and implementation of the projects.