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Where can i buy mini (v - 2v) solar panels?
- I too want to buy the panels to light up my house.s
2 Questions on Solar Panels?
- Solar panels come in many kinds, using a variety of technologies and sizes, but the most common is still the crystalline silicon type. The power produced is variable, but the better ones you can buy approach 20% efficiency, and the peak energy from the sun is 200W/m^2 (Watts per square meter). This only occurs when the panel is lined up with the sun on a clear day with the sun high in the sky. The efficiency is also affected by how the electrical energy is taken from the panel, and the temperature of the panel. In the full sun the temperature approaches 60C, so the voltage drops. The links below provide a lot of information about such matters. A BP panel 50mm x 674mm gives a peak power of 20W. This is .07 square meters. As you can see this is very close to 20%. (The third link). However this is less in practice because the sun may not be full sun and may not be perpendicular to the panel. The output drops as the cosine of the angle to the sun, more or less. Even with peak sun this would produce only about 00W charging a 2V battery directly, unless an electronic Maximum Power Point Tracking (MPPT) charge control is used.s
Wafer size6 inches and 8 inches only refers to the diameter of monocrystalline silicon?
- Refers to the diagonal length of the silicon waferBut you asked the wrong question, the wafer is divided into monocrystalline silicon and polycrystalline silicon wafer, you say is a square of silicon polysilicon film of silicon wafer, you ask in the four corner is a circular arc shape, so you should also count the length of the diagonal right. If not to shape the polysilicon film solution you can search the Internet search look.s
I bought a new poly solar cells, and the test result of the conversion efficiency is 16.8%, is it lower than usual?
- I don't think it's lower than normal, 16.8% is pretty common in most of the power plants in my area.s
What is the solar cell?
- When the surface of the solar cell and the electrode on the back side are connected with each other, a current flows.s
What are the types of tubes in the solar vacuum tube?
- Glass solar vacuum collector tube is divided into 70 and 100mm diameter, the length is also a lot, but the longest seems to be 2000mm. At present, the use of glass metal heat pipe. Some restrictions on the use, and the price is relatively higher. Do not know if you are not satisfied!s
Why don't we use solar panels?
- In the past, it was not economically feasible to mass produce solar panels. Because the costs associated with making them didn't outweigh the energy saved. But, there has been many recent technological breakthroughs with solar panel technology that makes mass production realistic. Just remember, even though we may have all of this great technology; in order for it to hit the public market, it has to make business sense. This pertains to big energy such as coal, gas, and oil; in the fact that current market sentiment favors green products. This means that since the market really likes green products and ideas, there is going to be a push towards greener sources of energy like solar panels.s
are solar panels worth buying?
- Depends where you live. Solar hot water is good for anywhere that doesn't get hard freezes, and will also work (slightly different technology) in colder areas, but will take longer to pay back. Hawaii probably has the best payback for solar water heaters of any state.s
Development of Chinese solar panels companies in the next few years
- China's solar panels companies battery industry is in a rapid growth phase, in the growing period. Improve the industry chain and enhance the ability of independent innovation ...
the development of future development of cheap solar power in China
- According to China's cheap solar resource-rich degree of classification standards.Zhejiang province is the solar energy resource area III.The total annual solar radiation is ab...
Different Types of Solar Panels
- What are they, how to tell them apart?In previous articles around solar energy we have noted there are at least 3 main manufacturing processes for producing solar panels. If you ar...
here I give you some examples of biofuels
- examples of biofuels---Brazil makes the biological energy superpower Brazil's renewable energy accounts for 44.7% of the country's energy, while the world average is only 1...
Living Off the Sun
- Powering their home by solar energy has became very attractive option for people, probably becoming independent or partially so from their nation grid electricity supplier the bigg...