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The opposite of high tech is low technology, referring to simple, often traditional or mechanical technology; for example, a slide rule is a low-tech calculating device. [4] [5] [6] When high tech becomes old, it becomes low tech, for example vacuum tube electronics. Further, high tech is related to the concept of mid-tech, that is a balance ...
Energy quality is a measure of the ease with which a form of energy can be converted to useful work or to another form of energy: i.e. its content of thermodynamic free energy. A high quality form of energy has a high content of thermodynamic free energy, and therefore a high proportion of it can be converted to work; whereas with low quality ...
Low technology (low tech; adjective forms: low-technology, low-tech, lo-tech) is simple technology, as opposed to high technology. [1] In addition, low tech is related to the concept of mid-tech, that is a balance between low-tech and high-tech, which combines the efficiency and versatility of high tech with low tech's potential for autonomy ...
The term soft energy technology was coined by Amory Lovins to describe "appropriate" renewable energy. [12] "Appropriate" energy technologies are especially suitable for isolated and/or small scale energy needs. Electricity can be provided from: Photovoltaic (PV) solar panels, and (large) Concentrating solar power plants.
Modern power management systems also reduce energy usage by idle appliances by turning them off or putting them into a low-energy mode after a certain time. Many countries identify energy-efficient appliances using energy input labeling. [25] The impact of energy efficiency on peak demand depends on when the appliance is used.
Solar panels, a tool for harnessing renewable energy Wind turbines, a tool for harnessing renewable energy. Energy engineering is a multidisciplinary field of engineering that focuses on optimizing energy systems, developing renewable energy technologies, and improving energy efficiency to meet the world's growing demand for energy in a sustainable manner.
An energy transition is a broad shift in technologies and behaviours that are needed to replace one source of energy with another. [14]: 202–203 A prime example is the change from a pre-industrial system relying on traditional biomass, wind, water and muscle power to an industrial system characterized by pervasive mechanization, steam power and the use of coal.
The amount of energy carried by a photon of light is determined by its wavelength. In lumens, this energy is offset by the eye's sensitivity to the selected wavelengths. For example, a green laser pointer can have greater than 30 times the apparent brightness of a red pointer of the same power output. At 555 nm in wavelength, 1 watt of radiant ...