1. IEA, Renewables 2021, Int. Energy Agency Publ. Int., p. 167, 2021.
2. IEA, Heating, Paris, 2022.
3. IEA, The Future of Heat Pumps, Paris, 2022.
4. European Commision, Commission delegated regulation (EU) 2022/759, Off. J. Eur. Union, 2022.
5. “Fuel Mix.” [Online]. Available: https://www.gse.it/servizi-per-te/fonti-rinnovabili/fuel-mix. [Accessed: 28-Dec-2022].