Renewable Energy Systems in the Design of Energy-Efficient Buildings

Dear Colleagues,

Renewable energy sources are considered to be all those that arise from non-fossil renewable sources, i.e., wind, solar, aerothermal, geothermal, hydrothermal, ocean, hydro, biomass, sewage treatment plant gas and biogas, and green hydrogen, among others. Some of these types of energy can be implemented in buildings to improve their environmental impact. In this sense, renewable energy should not be considered as an added element to a building since, from a design point of view, it should be an integrated element in the building. Therefore, new buildings should be designed taking into account this variable from the beginning.

At the same time, new solutions appear in the fields of building with smart grids, renewable energies and battery or hydrogen storage, innovative thermal envelopes in buildings with respect to thermal insulation, and passive heating and cooling techniques. Finally, energy-efficient buildings based on the use of heat generated in photovoltaic solar chimneys and ventilation by the air through sheets of water must also be considered.

This Special Issue includes new research and the latest technologies related to ‘’Renewable Energy Systems in the Design of Energy-Efficient Buildings’’. In particular, it includes a series of documents focused on the following:

• Energy-efficient buildings;
• Nearly zero-energy buildings (nZEB);
• Building eco-design;
• Building energy systems;
• Innovative thermal envelopes;
• Efficient installations;
• Hydrogen HVAC systems;
• Solar energy;
• Aerothermal;
• Wind energy;
• Geothermal;
• Biomass;
• Energy hybridization;
• Buildings with smart grids, renewable energies, and battery storage;
• Buildings with smart grids, renewable energies, and hydrogen storage.

We hope this Special Issue will improve the overall efficiency of engineering projects and help to minimize design failures.

Prof. Fernando Lopez-Rodriguez
Prof. Justo García Sanz-Calcedo
Guest Editors

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