When we talk about renewable energy, there are many different options fields. Recently, wind energy renewable energy seems to be the favorite. However, experts believe that solar energy could be at the edge of a revolution. Because people are now more aware of how much solar energy is generated annually in the end.
According to experts, in the earth receives solar energy equivalent to an annual 12.2 trillion watts. Exact, it is like all human energy consumed in a year more than 20,000 times. Therefore, if there is so much solar energy can be supplied to the earth, why do not more companies to invest in renewable energy in this form it? Fact situation, making use of solar module energy is too expensive. Due to high cost of solar energy production of the world's total with only seven percent.
According to the U.S. Department of Energy is understood that solar costs about $ 156 per MWh. Such a high cost, difficult for companies want to invest in solar energy, because the cost of coal per MWh of energy produced is only $ 99. Most importantly, the
period of natural gas, natural gas per MWh of energy produced only costs about
$ 65. Therefore, it is clear, from an economic point of view, is not really a
good choice solar energy. U.S.
Worse, experts say because the home solar panels energy storage is difficult, so the solar still a realistic choice. After all, only produce solar energy during the day. Therefore, solar energy must be well stored, so that it can be used at night.
However, the solar panel to be more efficient. According to reports, in the 1970s, solar panels solar energy can be converted into energy with only 8% of today's solar panels become more efficient, up to 44% conversion rate. Of course, the conversion rate of the solar cell will continue to rise. Currently, researchers are busy developing new technologies that will be able to put 54% of the light into energy.
Of course, this will inevitably reduce the production costs of solar energy. If this improvement program lasts 8 to 10 years, the
solar per MWh will only cost about $ 120. This will make it compared with other
forms of energy will be more competitive, such as nuclear power and coal. U.S.