Energy efficiency gap refers to the improvement potential of energy efficiency or the difference between the cost-minimizing level of energy efficiency and the level of energy efficiency actually realized. It has attracted considerable attention among energy policy analysts, because its existence suggests that society has forgone cost-effective investments in energy efficiency, even though they could significantly reduce energy consumption at low cost. This term was first "coined" by Eric Hirst and Marilyn Brown in a paper entitled "Closing the Efficiency Gap: Barriers to the Efficient Use of Energy" in 1990.[1]
^Hirst, Eric; Brown, Marilyn (1 June 1990). "Closing the efficiency gap: barriers to the efficient use of energy". Resources, Conservation and Recycling. 3 (4): 267–281. doi:10.1016/0921-3449(90)90023-W. ISSN 0921-3449 – via Elsevier Science Direct.
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Energyefficiencygap refers to the improvement potential of energyefficiency or the difference between the cost-minimizing level of energy efficiency...
to be achieved, thus creating an energyefficiencygap. Green Nudges (1990s to Current) While the energyefficiencygap considers economical investments...
Efficient energy use, or energyefficiency, is the process of reducing the amount of energy required to provide products and services. There are many...
solid-state physics and solid-state chemistry, a band gap, also called a bandgap or energygap, is an energy range in a solid where no electronic states exist...
device's efficiency at each photon energy level. For typical semiconductor photodetectors, QE drops to zero for photons whose energy is below the band gap. A...
channel - Energy development - Energy-dispersive X-ray spectroscopy - Energy distance - Energy drift - Energy drink - Energyefficiencygap - Energy-Efficient...
evidence in favour of an energyefficiencygap, i.e. whether consumers and firms fail to invest as much into energyefficiency as the expected increases...
quantum energy conversion devices, and are therefore subject to the thermodynamic efficiency limit. Photons with an energy below the band gap of the absorber...
hidden costs: A technology-based approach to the energyefficiencygap in light-duty vehicles". Energy Policy. 98: 590–606. doi:10.1016/j.enpol.2016.09...
band gap of 1.6–1.8 eV as a top cell can reduce thermalization loss, produce a high external radiative efficiency and achieve theoretical efficiencies over...
environment-inclined concept of ecological efficiency/eco-efficiency. To achieve and optimize natural resource and energyefficiency, several sustainable economical...
stations have raised energy conservation awareness. In 1992 the U.S. Congress, as part of the Energy Policy Act (EPAct) set minimum efficiency levels (see Table...
as follows: National Solar Mission National Mission for Enhanced EnergyEfficiency National Mission on Sustainable Habitat National Water Mission National...
Research-Cell Efficiency Chart". www.nrel.gov. Retrieved 5 April 2023. "PHOTOVOLTAICS REPORT" (PDF). Fraunhofer Institute for Solar Energy Systems, ISE...
band gaps, forming the carrier-separating heterojunctions that are analogous to the p-n junction of traditional solar cells. The high efficiency of heterojunction...
increase in efficient energy use. These include the roll out of smart meters, the Green Deal, the CRC EnergyEfficiency Scheme, the Energy Savings Opportunity...
many other industrial sources of electricity. Solar-cell efficiency refers to the portion of energy in the form of sunlight that can be converted via photovoltaics...
modern energy for all", including universal access to electricity and to clean cooking facilities by 2030. Energyefficiency—using less energy to deliver...
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the kinetic energy of motion. Energy density differs from energy conversion efficiency (net output per input) or embodied energy (the energy output costs...
useful heating or cooling provided to work (energy) required. Higher COPs equate to higher efficiency, lower energy (power) consumption and thus lower operating...
switch from one power source to another to maximize both fuel efficiency and energyefficiency. In hybrid electric vehicles, for instance, the electric motor...
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