Definition of net energy
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- Net Energy Gain (NEG) is a concept used in energy economics that refers to the difference between the energy expended to harvest an energy source and the amount of energy gained from that harvest.
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Definitions &Translations Freebase(0.00 / 0 votes)Rate this definition: Net gain. In telecommunications, net gain is the overall gain of a transmission circuit. Net gain is measured by applying a test signal at an appropriate power level at the input port of a circuit and measuring the power delivered at the output port. The net gain in dB is calculated by taking 10 times the common logarithm of the ratio of the output power to the input power. The net gain expressed in dB may be positive or negative.
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Zero-energy building Zero Net Energy (ZNE) definition: The amount of energy provided by on-site renewable energy sources is equal to the amount of energy used by the building. A ZNE building may. also consider embodied energy – the quantity of energy required to manufacture and supply to the point of use, the materials utilized for its building.
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energy conversion definition, energy conversion meaning | English dictionary potential energy. n. 1. (General Physics) the energy of a body or system as a result of its position in an electric, magnetic, or gravitational field. It is measured in joules (SI units), electronvolts, ergs, etc. Symbol: Ep, V, U or φ Abbreviation: PE.
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General Information Net primary production is the rate at which all the plants in an ecosystem produce net useful chemical energy; it is equal to the difference between the rate at which the plants in an ecosystem produce useful chemical energy (GPP) and the rate at which they use some of that energy during respiration.
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potential energy 1. potential energy-the mechanical energy that a body has by virtue of its position; stored energy. P.E. elastic energy, elastic potential energy-potential energy that is stored when a body is deformed (as in a coiled spring). mechanical energy-energy in a mechanical form.
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solar energy solar energy definition. The energy the Earth receives from the sun, primarily as visible light and other forms of electromagnetic radiation. Note: The term solar energy often refers to processes that use this energy to generate heat or electricity for human use.
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- The common definition for nuclear energy is the energy released by a nuclear reaction, especially by fission or fusion. Practically speaking, nuclear energy uses fuel made from mined and processed uranium to make steam and generate electricity.
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Energy Conservation Definition To start, here is the energy conservation definition. To put it most simply, energy conservation is the act of saving energy, which includes energy related to warming something, lighting something or moving something.
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net-zero energy building Part of the Data centers glossary: A net-zero energy (NZE) building is one that relies on renewable sources to produce as much energy as it uses, usually as measured over the course of a year. Net-zero energy buildings start with energy-conscious design.
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What is Net Force? - Definition, Magnitude & Equations A net force is defined as the sum of all the forces acting on an object. The equation below is the sum of N forces acting on an object. There may be several forces acting on an object, and when you add up all of those forces, the result is what we call the net force acting on the object.
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What Is the Definition of Solar Energy? Solar energy is defined as energy obtained from the sun's radiation. The two main forms of solar energy include active solar energy and passive solar energy.
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- solar energy definition. The energy the Earth receives from the sun, primarily as visible light and other forms of electromagnetic radiation. (See renewable resource.) Note: The term solar energy often refers to processes that use this energy to generate heat or electricity for human use.
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Net energy gain Net energy gain - ISO 13602. 1  ISO 13602-1 provides methods to analyse, characterize and compare technical energy systems (TES) with all their inputs, outputs and risk factors.
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- The output of net energy E. net from hydrogen involves a substantial amount of. energy input E. in in the production, onsite storage, transportation, distribution station -. storage, as well as on-board storage. One can define the hydrogen energy storage efficiency as:
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- energy definition. In physics, the ability to do work. Objects can have energy by virtue of their motion (kinetic energy), by virtue of their position (potential energy), or by virtue of their mass (see E = mc2).
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energy efficiency Definition of energy efficiency: Percentage of total energy input to a machine or equipment that is consumed in useful work and not wasted as useless heat.
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- Definition of net energy in the Financial Dictionary - by Free online English dictionary and encyclopedia. What is net energy? Meaning of net energy as a finance term.
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- Definition of CONSERVATION OF ENERGY. : a principle in physics: the total energy of an isolated system remains constant irrespective of whatever internal changes may take place with energy disappearing in one form reappearing in another.
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Atomic energy The energy of inter-atomic or chemical bonds, which holds atoms together in compounds. Atomic energy is the source of nuclear power, which uses sustained nuclear fission to generate heat and electricity.
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Thermal Energy Definition of Thermal Energy. Thermal energy is the internal energy of an object due to the kinetic energy of its atoms and/or molecules.
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Energy Gravitational Potential Energy. Potential energy is energy an object possesses due to its position or condition. Gravitational potential energy, then, is the energy an object possesses because of its position in a gravitational field (height). Let's assume we have a 10 kg box on the floor. Let's arbitrarily call its current potential energy zero, just to give us a reference point.
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Energy: A Scientific Definition Mechanical Energy - Mechanical energy is the sum of the kinetic and potential energy of a body. Light - Photons are a form of energy. Electrical Energy - This is energy from the movement of charged particles, such as protons, electrons, or ions.
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free energy 1. chemical energy-that part of the energy in a substance that can be released by a chemical reaction. energy, free energy - (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs; energy can take a wide variety of forms.
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Electric Potential Energy Electric Potential Energy. Potential energy can be defined as the capacity for doing work which arises from position or configuration. In the electrical case, a charge will exert a force on any other charge and potential energy arises from any collection of charges. For example, if a positive charge Q is fixed at some point in space, any other positive charge which is brought close to it will experience a repulsive force and will therefore have potential energy. The potential energy of a test charge q in the vicinity of this source charge will be:
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- Document Actions. The net energy yield refers to the gross energy produced by the biomass, minus the energy provided from the fossil fuels used in the production and processing of the biomass.