Solar Energy
Why is daytime brighter and warmer than nighttime? The answer is simple: solar energy. Solar energy is simply the light and heat that come from the sun.
People can harness the sun's energy in a few different ways: ...
solar energy - energy derived from sunlight.
solid waste - non-liquid, non gaseous category of waste from non-toxic household and commercial sources.
Solar Energy: Solar energy uses semiconductor material to convert sunlight into electric currents. Although solar energy only provides 0.15% of the world's power and less than 1% of U.S.
Solar energy - energy from the sun.
Solar heating - heat from the sun is absorbed by collectors and transferred by pumps or fans to a storage unit for later use or to the house interior directly. Controls regulating the operation are needed.
Solar Energy. Energy from the sun, also known as solar radiation and short-wave radiation. Solar energy includes ultra-violet radiation, visible radiation, and infra-red radiation.
Solar energy
The radiant energy of the sun, which can be converted into other forms of energy, such as heat or electricity.
Solar power ...
solar energy/power: using the sun's heat to generate electricity. Common forms of solar power include solar panels, solar hot water and solar thermal energy (see below).
Solar Energy is the energy from the sun and it provides the source for all energy sources - wind, water, waves, biofuels and fossil fuels.
Solar Energy
The sun is our most powerful source of energy. Sunlight, or solar energy, can be used for heating, lighting and cooling homes and other buildings, generating electricity, water heating, and a variety of industrial processes.
Solar energy is free: see if you can get your parents and friends interested in free solar energy -- that's energy from the sun and wind. You can get much of your hot water and heating from the sun and even generate electricity.
Examples include solar energy, hydroelectric power and wind power. Renewable Resources A resource that can be replenished at a rate equal to or greater than its rate of depletion; i.e., solar, wind, geothermal and biomass resources.
Solar Air Conditioning Refers to any type of air cooling system that is powered by solar energy. Solar air conditioning is made possible through passive solar design, solar thermal energy conversion and solar panels or photovoltaic systems.
solar constant The rate at which solar energy is received just outside the Earth's atmosphere on a surface that is normal to the incident radiation and at the mean distance of the Earth from the sun. The current value is 0.140 watt/cm2.
By means of photosynthesis, they use solar energy to convert water, nutrients, and carbon dioxide into usable biomass. Plant growth can be limited by a number of factors, including soil fertility, water, temperature, and carbon dioxide concentration.
Some spots get warmer, some colder, some hotter, some dryer, with more extreme weather in general, since there is more solar energy being absorbed into the atmosphere because of the greenhouse gas effect.
The strength of the solar energy that reaches our outer atmosphere is called the solar constant and has a value of approximately 2.0 calories per minute per square centimeter.
The effect of trapping heat by the transmission of visible solar energy, and the absorption (or reflection) of infra red heat energy. This can be done by a sheet of glass or a layer of some gases, known as greenhouse gases.
High Performance Windows - Once you have placed and sized your windows to make the most efficient use of solar energy (see Passive Heating/Cooling and Daylighting), the next step is to choose a window that will balance your lighting needs, ...
Each of us can reduce our contribution to global warming by using less greenhouse-gas-producing energy: driving less, choosing fuel efficient cars and appliances (like refrigerators and water heaters), and using solar energy where feasible for water ...
Of the solar energy entering the earth's atmosphere a portion is reflected back and a portion penetrates onto the earth's surface. The portion reflected back from the earth's surface is at a different wavelength that when it entered.
Albedo - Also know as 'solar reflectance,' this is the ratio of reflected solar energy to incoming solar energy over wavelengths of approximately 0.3 to 2.5 micrometers.
Energy from renewable resources such as wind power, solar energy or biomass.
Renewable resource
A resource that can be used again and again without reducing its supply because it is constantly topped up, for example wind or sun rays.
BE A SUNSHINE SUPERMAN (OR WOMAN) - POWER YOUR HOME WITH SOLAR!
Home Solar Energy - Systems and Strategies
HAZARDS AT SCHOOL -
BEYOND SPITBALLS, BULLIES AND CLIQUES
A Good Learning Environment Requires
Health and Safety in Schools ...
A process occurring in the cells of green plants and some microorganisms in which solar energy is transformed into stored chemical energy.
Phytoplankton
That portion of the plankton community comprising tiny plants (e.g., algae, diatoms).
Low-e Glass - Low-e (Low emissivity) glass has an invisible thin-film metallic or oxide coating which allows the passage of short-wave solar energy into a building but prevents long-wave energy produced by heating systems and lighting from ...
Usually environmentally friendly, this is energy from uncommon sources such as wind power or solar energy, not fossil fuels.
Alliance to Save Energy ...
4% of its longwave infrared radiation and 64% of Earth's total emissions at all wavelengths. The atmosphere and clouds get this energy from the solar energy they directly absorb; thermal radiation from the surface; ...
Renewable Energy: Energy harvested from sources that are not depleted when used, typically causing very low environmental impact. Examples include solar energy, hydroelectric power, and wind power.
Energy sources that do not rely on fuels of which there are only finite stocks. The most widely used renewable source is hydroelectric power; other renewable sources are biomass energy, solar energy, tidal energy, wave energy, and wind energy.
PV cells are made of semiconducting materials similar to those used in computer chips. When sunlight is absorbed by these materials, the solar energy knocks electrons loose from their atoms, ...
Plants use chlorofyll (a green photo-active pigment) to capture solar energy within the chemical bonds of synthesised sugar molecules. The process effectively reduces carbon dioxide and water to produce sugar and oxygen.
energy subsidy The man-induced addition of energy designed to increase the production of ecological energy. For example, the use of fossil fuel energy in tractors to increase the amount of solar energy available from agricultural crops.
Atmospheric air currents are driven by solar energy. The earth's tilt and rate of rotation mean that different parts of the surface receive different amounts of energy.
anoxygenic photosynthesis autotrophy based on a solar energy source, but producing sulfur as a byproduct rather than O2 as typifies oxygenic photosynthesis ...
 See also: Water, Environment, Air, Environmental, Gas
  
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