Posts Tagged ‘amount of power generation’

Thin film silicon type solar battery

9月 4th, 2011



In the solar battery that used silicon, the single-crystal silicon type solar battery and the polysilicon type solar battery were main currents before.
However, the number of cases into which the ordinary family introduced the photovoltaic generation increased considerably in recent years, and the influence existed, too the demand for the single-crystal silicon type solar battery decreased on the cost side, and a cheaper technology came to be requested.
Having given birth in shape to answer it is a thin film silicon type solar battery.
The thin film silicon type solar battery that is called an amorphous silicon type uses very thin “Film of silicon” as its name suggests.
The film of silicon is deposited to the glass substrate etc. , and the amount of silicon is suppressed to about indeed 1/100 compared with two of the crystal types by the method of using it as a base.
It will be able to be said that the thin film silicon type solar battery is a commodity in the silicon type solar battery whose expensive silicon is a problem on the cost side that achieves a very big cost reduction.
However, the electric conversion efficiency is inferior to two of other crystal types, and a figure named 7?10% while the cost side was considerably suppressed.
This conversion efficiency enters a considerably low class in the solar battery.
Therefore, when the solar panel is set up, the possibility that the amount of power generation hits a rough spot cannot be denied according to the environment and the area.
However, there is a merit that the irregularity of the amount of power generation only that the price is not suppressed like it by the temperature change also that is the weak point of the solar panel is suppressed to the minimum in the place where it seems to be a fault, too.
It will be able to be called a solar battery that attracts attention most in recent years.

The power generation efficiency is unstable.

9月 4th, 2011



“Cannot you generate electricity well in case of the photovoltaic generation on the day of the overcast day and rain?”
Perhaps, it seems that a lot of people think the photovoltaic generation to be uneasy.
This is that’s right if it says from the conclusion.
The amount of power generation decreases by all means when it is cloudy weather and rain compared with fine weather.
Moreover, electricity cannot be generated because the solar panel is hidden at the snowfall.
Naturally, power generation becomes improper at nighttime when sunlight is not irradiated.
These are roads because it makes sunlight energy that cannot pass when avoiding it.
And, there is a matter from which power generation with another point and the solar panel is controlled besides the weather.
It is “Installation environment” and “Temperature. ”
First of all, the point “Angle of incidence degree of sunlight” becomes important though it is an installation environment.
The angle of the ideal might not have a lot of houses that can be set up according to this ideal so for the direction of due south while an angle of the roof or an environmental side of direction being controlled though is a position of 30 degrees in the tilt angle.
In most houses, it will grope for shape near it though it is not an ideal.
On the other hand, there is a characteristic that the power generation efficiency decreases at the high temperature it for the temperature.
Therefore, winter becomes better than that of the south the power generation efficiency of the north than summer.
However, the difference doesn’t actually arise so much in the amount of power generation each day for this respect.
Because the time of summer from which the sun has risen is longer than that of winter.
Therefore, the difference between a hot weather area and a cold region consequentially becomes it with the one minute even in case of being in summer and winter because summer is longer at the exposure time of sunlight though is better the winter of efficiency each unit time.