2026-04-30T12:55:32Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/63132024-03-26T11:43:59Zcom_20.500.11984_473col_20.500.11984_478

Towards Nearly Zero-Energy Buildings in Cold Rural Mediterranean Zones: The Case of La Rioja (Spain) Sagredo Blanco, Enrique López-Ochoa, Luis M. Las-Heras-Casas, Jesús García-Lozano, César sustainable rural development energy renovation rural residential buildings nearly zero-energy buildings Spain The European Union aims for its existing building stock to be highly energy-efficient and decarbonized by 2050 through long-term renovation strategies so that all residential buildings are nearly zero-energy buildings. The objective of this work is to determine the optimal energy renovation solution for rural residential buildings located in cold climate zones of Spain to achieve nearly zero-energy buildings. For this purpose, the energy, environmental and economic impacts of 48 energy renovation proposals in three different climate zones are assessed, taking La Rioja as a case study. Considering these impacts, the optimal solution is a solution that improves the thermal envelope, applying the life cycle cost analysis, and that uses renewable energy sources to meet thermal needs and a portion of the electrical energy needs. Under the optimal solution, overall savings of up to EUR 2.4 can be achieved for each euro invested, resulting in reductions in non-renewable primary energy consumption by up to 97%, total primary energy consumption by up to 81% and CO2 emissions by up to 97%. The methodology followed and the results obtained can serve as a guide for establishing energy renovation policies in other cold rural Mediterranean zones. 2024-03-25T13:52:28Z 2024-03-25T13:52:28Z 2023 http://purl.org/coar/resource_type/c_6501 2075-5309 https://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=174681 https://hdl.handle.net/20.500.11984/6313 eng Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ © 2023 The Authors MDPI