1. (2023, May 11). Energy Consumption in Households. Available online: https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Energy_consumption_in_households.
2. European Commission (2023, May 11). A Renovation Wave for Europe—Greening our Buildings, Creating Jobs, Improving Lives. Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. Available online: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:52020DC0662.
3. European Commission (2023, May 11). Budget Pre-Allocations. Summary of EU Budget Amounts Assigned to EU Countries for Specific Programmes in the Several Policy Areas. EU Budget 2021–2027 and Next Generation EU. Available online: https://commission.europa.eu/strategy-and-policy/eu-budget/long-term-eu-budget/2021-2027/spending/budget-pre-allocations_en.
4. Government of Spain (2021). Plan de Recuperación Transformación y Resiliencia.
5. (2023, May 11). Royal Decree 853/2021, of 5 October, Which Regulates the Residential Renovation and Social Housing Renovation Programmes of the Recovery, Transformation and Resilience Plan. Available online: https://www.boe.es/buscar/act.php?id=BOE-A-2021-16233.