PR FESR Sardegna 2021-2027. Specific objective: RSO2.1. Promote energy efficiency and reduce greenhouse gas emissions (ERDF). Action 3.1.1 – Action 3.1.1 Electrification of consumption and energy efficiency in enterprises. Specific objective: RSO2.2. Promote renewable energy in accordance with Directive (EU) 2018/2001[1] on energy from renewable sources, including the sustainability criteria laid down therein (ERDF). Action 3.2.1. Promotion of the use of