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Measurable energy conservation and efficiency gains in the 1980s led to the 1987 Energy Security Report to the President (DOE, 1987) that "the United States uses about 29 quads less energy in a year today than it would have if our economic growth since 1972 had been accompanied by the less- efficient trends in energy use we were following at ...
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.
Luminous efficiency, a measure of how well a light source produces visible light; Fuel efficiency, the efficiency of converting potential energy in a fuel into kinetic energy; Energy efficiency in transportation, the fuel economy of various modes of transportation; Energy-efficient landscaping, a type of landscaping designed for the purpose of ...
Procurement is the acquisition of goods or services. Energy prices fluctuate constantly, which can significantly affect the energy bill of organizations. Therefore, poor energy procurement decisions can be expensive. Organizations can control and reduce energy costs by taking a proactive and efficient approach to buying energy.
The energy intensity of the global economy (the amount of energy consumed per unit of gross domestic product (GDP)) is a rough indicator of the energy efficiency of economic production. [42] In 2010, global energy intensity was 5.6 megajoules (1.6 kWh ) per US dollar of GDP. [ 42 ]
Nearly all scenarios and strategies involve a major increase in the use of renewable energy in combination with increased energy efficiency measures. [ 40 ] : xxiii It will be necessary to accelerate the deployment of renewable energy six-fold from 0.25% annual growth in 2015 to 1.5% to keep global warming under 2 °C.
Managing energy, peak demand and bills in community level may be more feasible and viable, because of the collective purchasing power, the bargaining power, more options in energy efficiency or storage, [24] more flexibility and diversity in generating and consuming energy at different times, e.g. using PV to compensate day time consumption or ...
The term energy audit is commonly used to describe a broad spectrum of energy studies ranging from a quick walk-through of a facility to identify major problem areas to a comprehensive analysis of the implications of alternative energy efficiency measures sufficient to satisfy the financial criteria of sophisticated investors.
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