Some of the examples of low embodied energy construction materials are fly ash bricks, fiber-reinforced bricks, woods, stabilized adobe blocks, cement-replacement materials such as silica fume, slag, and fly ash which is mostly by-products in factories. The embodied energy is the energy used by all processes related to the construction material’s mining, manufacturing, transporting, and administering. The usage of low embodied energy materials for building construction is important for reducing the impact of global warming and making the building energy-efficient. Utilization of Low Embodied Energy Building Materials Figure-2: Nearly Zero Passive House Design 2. In the cold zones, passive heating designs should be adopted, such as air handling units, sunspace, trombe wall, etc.

In a hot and dry climate, passive cooling designs, such as wall and roof cooling, solar refrigeration, and earth water heat exchangers should be integrated into the building. The passive solar design strategies should be selected based on the climatic condition of the project site. The passive building does not need complex design, but requires a knowledge of solar geometry, local climate, and window technology. For instance, passive solar heating/cooling, building daylighting, and provision for rainwater harvesting. The design of a nearly zero-energy passive building involves adopting all solar passive strategies at the design stage before actual construction begins. Nearly Zero-Energy Passive Building Design The energy efficiency in a building can be explained by its main aspects, which are discussed below: 1. Figure-1: Energy Efficiency What is Energy Efficiency in a Building? It saves lives, reduces medical treatment’s financial and social costs, and increases the value of buildings. As a result, the possibility of air pollution-related diseases such as asthma and lung cancer will be reduced. Moreover, energy-efficient buildings decrease indoor air pollution as they provide cleaner combustion and better ventilation than conventional buildings. There was a special emphasis on reducing CO 2 emissions by the 26th UN Climate Change Conference of the Parties (COP26) in Glasgow held on 31 October – 13 November 2021. It reduces household expenses and decreases carbon dioxide emissions. Why is Energy Efficiency in a Building Important?Įfficient energy consumption in buildings is one of the most affordable ways to lessen the detrimental effects of climate change and health-related problems. Integration of Renewable Energy Technologies in Different Applications

What is Energy Efficiency in a Building?.Why is Energy Efficiency in a Building Important?.As far as building operation is concerned, utilities for renewable energy systems have to be integrated into the building for water heating, photovoltaic electrification, etc. Low-energy building materials and less energy-consuming construction equipment must be used during the construction process. Adopting passive solar house design strategies at the design stage is the first step toward an energy-efficient structure. It should be considered during the design stage, selection of construction materials, construction process, and operation of the building. Therefore, the adoption of energy efficiency techniques during the construction and operation of buildings would play a crucial role in the creation of sustainable cities in the future.Įnergy efficiency is the use of less energy in a building to perform the same operation as buildings that consume energy inefficiently. This is because the consumption of fossil fuels for the full-fledged operations of a building is as high as it is in other industries. The value of reducing energy consumption in buildings has increased worldwide.

Energy efficiency building envelope