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Efficient energy use; Energy audit; Energy efficiency implementation; Energy recovery; Energy recycling; Energy saving lamp; Energy Star; Energy storage; Environmental planning; Environmental technology; Fossil fuel phase-out; Glass in green buildings; Green building and wood; Green building; Heat pump; List of low-energy building techniques ...
The project developed a heat recovery air exchanger (HRV), hot water recovery, and a blower-door apparatus to measure building air-tightness, techniques that became common in low-energy building in other parts of the world. [9] Orr would go on to apply many of those techniques to retro-fitting existing buildings to improve energy efficiency ...
A Zero-Energy Building (ZEB), also known as a Net Zero-Energy (NZE) building, is a building with net zero energy consumption, meaning the total amount of energy used by the building on an annual basis is equal to the amount of renewable energy created on the site [1] [2] or in other definitions by renewable energy sources offsite, using technology such as heat pumps, high efficiency windows ...
Common energy efficiency label on appliances to indicate their energy efficiency in a clear manner. Efficient energy use, or energy efficiency, is the process of reducing the amount of energy required to provide products and services. There are many technologies and methods available that are more energy efficient than conventional systems.
A building based on the passive house concept in Darmstadt, Germany. Passive house (German: Passivhaus) is a voluntary standard for energy efficiency in a building that reduces the building's carbon footprint. [1] Conforming to these standards results in ultra-low energy buildings that require less energy for space heating or cooling.
A 2012 study by the American Council for an Energy-Efficient Economy found that multifamily buildings present a tremendous opportunity for energy savings. Comprehensive, cost-effective upgrades in multifamily buildings could improve efficiency by 15-30%, the Council found, representing an annual sector-wide savings of almost US$3.4 billion. [2]
In climates with four seasons, an integrated energy system will increase in efficiency: when the building is well insulated, when it is sited to work with the forces of nature, when heat is recaptured (to be used immediately or stored), when the heat plant relying on fossil fuels or electricity is greater than 100% efficient, and when renewable ...
A 2002 study compared production energy values for building components (e.g. walls, floors, roofs) made predominantly of wood, steel and concrete, and found that wood construction has a range of energy use from 185 to 280 Gigajoules (GJ), concrete from 265 to 521 GJ, and steel from 457 to 649 GJ.