solar energy advantages and disadvantages

dvantages:1. The universality.
The light of the sun in the area of the earth's most corner, spread to just incident Angle caused by the different light have different, but at least will not be a few countries or regions, cause unnecessary monopoly energy crisis.
2. Permanent.
The solar energy very large, scientists calculated that at least six million years, the time limit for humans, this time it is infinite.
3. No pollution.
Now use most minerals, the growth of the energy problem to be but waste disposal, the object is eternal, the more energy depletion, produce pollution is also relatively increase, solar energy, no risk and pollution. In the human and nature under the principle of peaceful co-existence, use the solar energy does not hurt, and, in the case of equipment and gas use proper, device into expenses required is few, and after a year can be born at least ten 17 power of electric power. Kw Coal, oil and other fossil fuels the harmful gas and waste residue, while the use of solar energy will not bring pollution, not from any adverse impact on the environment of material, is a kind of clean energy. Of course, the use of solar energy, because after the full use of solar energy, the result will be that the environmental temperature increased slightly, but this kind of temperature rise, not the adverse impact on the environment.
4. Solar is a human can use the most abundant energy.
According to estimates that in the past one billion one hundred million years long, the sun only consumes 2% of the energy it itself, billions of years the sun in the future will not happen obvious change, so the sun can be used as a human permanent energy, inexhaustible, an inexhaustible. It to the ground illuminate 15 minutes of energy, enough for a year. Use around the world
5. The solar energy security can be sex.
Nuclear power will have the danger of nuclear leakage, once the nuclear leaked will cause great ecological crisis, and the solar energy absolutely no this kind of situation, it is very reliable.

Faults:
1. Poor stability.
By night and day, and the solar energy climate impact, reach highly constant. Because this must have storage device, it not only increased technical difficulties, also make the cost increase. At present although has made DuoZhong storage systems, but always insufficient ideal, specific application also have certain difficulty.
2. The high cost of device.
Although the whole ground to very large solar energy, but this kind of energy very scattered, as energy, its density is too low. Therefore, the use of solar energy device must have quite a large area, to collect enough power. But, large area, cost will be high. Only when the value of the surface energy device unit cost quite cheap, can use this cost-effective solar energy device.
3. Someone for solar the pollution problem of the proposed "visual pollution."
Which means huge solar energy collector cause visual pollution, have this to say.
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