Solar energy can be converted directly into other forms of energy, such as heat and electricity.
The major disadvantages of solar energy are:
The strength of the solar energy available at any point on the earth depends, on the day of the year, the time of day, and the latitude of the collection point. The amount of energy collected can be further changed depending on the orientation and shape of the object doing the collection. Insolation is a measurement of the amount of solar energy that reaches the surface of the Earth. The amount of insolation an area receives depends upon the Sun's angle, the amount of dust and water vapour in the air, and the amount of cloud cover. Less than half of the radiation energy we receive from the sun makes it to the ground. The rest is absorbed by the atmosphere or reflected back out into space.
The strength of solar radiation at the outer edge of the earth's atmosphere when the earth is taken to be at its average distance from the sun is called the solar constant, the mean value of which is 1.37 106 ergs per sec per cm2, or about 2 calories per min per cm2.
Solar energy is used for heating water for domestic use, space heating of buildings, drying agricultural products, and generating electrical energy.
One of the first examples of using solar energy was the used of a solar collector box to cook food during an expedition into Africa in the 1830's by British astronomer John Herschel. Today it is used widely for many things. Solar thermal or heat energy is used widely in Australia for heating water for our domestic use in Solar Water heaters. This is an excellent and economic energy solution as, by using the sun's heat for making our hot water, we cut down on the amount of fossil fuels needed to be burnt to supply electricity to do the same thing. The technology is now developing which will use solar thermal energy to produce steam at high enough temperatures and pressures to drive steam turbines for electricity generations.
We are also able to harness radiant or solar light energy. Radiant energy is produced in the sun as a result of nuclear fusion reactions and is transmitted to the earth through space by electromagnetic radiation in quanta or packets of energy called photons. This light energy can be utilised by a process called photovoltaics, which produces electricity directly (Photo meaning light and voltaics relating to electricity). This process is being used more and more as the technology is developed and becomes more economic. It is used widely in solar powered calculators and other such devices.
How many ways can you think of that the sun's energy is used directly today?
I'm pretty sure they use Ultra Violet radiation. It has the shortest wavelength and the highest photoelectric energy level. New solar cells will be layered to take advantage of all wavelengths in order to increase efficiency.
They use photons.
By powering everything from calculators to space stations.
there are many uses, but the most common day-to-day uses are wristwatches and calculators.
Solar cells provide electricity to equipment.
Solar cells are used to convert solar energy to electrical energy through photovoltaic effect.
to provide power for us humans
Photovoltaicm, Solar cell, Photovoltaic modules
Solar Energy Is Stored For Later In A Photovoltaic Cell
The first solar cell, by Charles Fritts, was invented in 1883, but this was the very first one. This incredibly early solar cell had conversion efficiencies of under 1%. In 1941 and 1954, there were 2 more improvements to the solar cell, the latter being capable of 6% conversion efficiency with direct sunlight.
paano makagawa nang solar cell
The solar panel was invented by a man named Russel Ohl. He invented the solar cell in 1941. Solar panels are used to generate electricity and power.
The major applications of photo electric effect are in power satellites, solar cells solar powered calculators, solar cookers etc.
Ejaz Ahmed has written: 'Growth and characterisation of Cu(In,Ga)Se2 thin films for solar cell applications'
The function of solar cell is to convert the energy from the sun into electricity. This is commonly referred to as a photovoltaic cell.
metal + human = tool tool + sun = solar cell sun + solar cell = electricity
A solar cell is an electronic device that converts sunlight into electricity. An array of them is called a solar panel.
A solar cell is not an energy source, but an energy converter. In the case of solar, the energy source is light, and the solar cell converts it from light energy to electrical energy.
It is a cell that coverts solar energy into electrical energy
It absorbs light just like a solar cell
I've found it out. It's; Light-->solar cell-->voltmeter.
That will vary a lot, depending on the size of the solar cell.
A solar cell phone charger is a electrical device, that uses a solar panel to charge a phone battery.
The solar cell coverts the sun light into energy/electricity