According to News reports that: solar panel prices fell last year to help stimulate consumption. Solar Energy Industries Association said that solar panel parts prices less about 15% than the same period last year. The past year, solar panel prices have fallen sharply, which will help more people and the government to use solar energy.

　　

　　Within a few years, the United States is expected to become the world's largest country to install solar equipment, solar division count as cost reduction, coupled with government loans and grants to attract people throughout the United States using both cheaper and environmentally clean energy.

　　

　　Another generation of solar cells, the future expected by a special ink “transfer “paper in general, that is, for the solar cell sheet. Massachusetts Institute of Technology (MIT) research team recently studied a paper-thin batteries, solar cells made ??of “ink " form , as long as printed on plain paper , you can immediately generate electricity. MIT noted that this technology is cheap and easy , via the printer can be printed , less than two years may be able to charge for I Pad , drying clothes ... and so on. From " solar ink " printed paper battery durability is high , power sufficient for an LCD clock, in repeated 1,000 times after folding , power generation efficiency is almost no damage ; addition , lightweight paper battery easy to carry , can be placed in carry backpacks or folded and placed in the pocket when needed and then spread in the sun to charge . MIT said: paper and conventional glass substrate difference is limited to the last solar panels installed on the ceiling or the farm, while the paper battery applications place is not limited. The process of making traditional solar panels , shall board were exposed to the etching solution and high temperature ; But new solar ink , requiring only vapor and not the temperature of 120 degrees Celsius , will be able to successfully transfer to paper, cloth , plastic, etc. Different material, the most important thing is cheap 1000.

　　

　　This study has made great progress for renewable energy technologies in reducing weight and lower prices. Now, solar energy conversion efficiency of paper battery is although less than 2 %, and only providing electronic for alarm clock and other small supplies of electricity consumption. However, we wish the conversion efficiency is expected to increase up to 8% in the next two years. Then, may be able to apply to a variety of aspects, such as: mobile phones, iPad and other low-power electronic devices.