1.1. Use of biomass as a fuel for thermal energy production: private companies and the self-employed, individuals, non-profit organisations and homeowners' associations. 1.2. Geothermal systems for thermal energy production (heating and/or cooling): private companies and self-employed workers, private individuals, non-profit organisations and homeowners' associations. 1.3. Off-grid photovoltaic solar energy: private and self-employed companies, private individuals, non-profit organisations and communities of owners. profit-making entities. 1.4. Production of electrical energy by means of mini-hydro turbines or wind turbines: private enterprises, self-employed persons, private individuals, non-profit organisations. 1.5. Installations for the use of biogas energy: private companies and self-employed workers. Section 2. Promotion of energy saving and efficiency. 2.2. Measures in the building sector: private companies, self-employed workers, non-profit organisations and homeowners' associations. and homeowners' associations. 2.3. Public aid programme for industries: private companies whose activity is included in any of the classes belonging to section C: Industry. 2.3. Public aid programme for industries: private companies whose activity is included in one of the classes belonging to section C: Manufacturing Industry, of the National Classification of Economic Activities (CNAE). 2.8. Installation of refuelling stations for alternative fuels that are accessible to the public: private companies that are legally legally accredited and registered for the exercise of the activity of fuel supply as determined by the applicable regulations. applicable regulations.