Solar cell is common peak power of a question is: think as long as there is sunshine can output rated power, peak power of 100 wp, if under the condition of normal light, light 10 hours, can generate 1000 wh, namely 1 KWH, actually
1. Solar cell peak power is a common problem, as long as there is sunshine, can output power rating, if under normal lighting conditions from 10 hours, 100 watts peak power can produce 1000 watts, namely 1 degree of electricity. In fact, the peak power of the solar WP is a standard solar cell output power: under the condition of radiation is 1000 watts per square metre, atmospheric quality 1. 5 amperes, battery temperature 25 ℃. ( This condition with sunny day around noon the sun roughly the same) According to the guangdong lighting conditions, standard lighting time is about 3. 3 to 3. 5 hours. On rainy days, solar cells also can produce a certain amount of energy and its power is about 5 - power rating 15%. 2. The loss of the solar power is widely mistakenly think that solar pv cell modules output of electricity will be load full use of every day. In fact, the installation of solar modules have considerable losses, approximately 15 20%. In the process of charging and discharging, the loss of about 20%. If there is a inverter, loss of more than 10%. In general, the utilization rate of solar power is about 50%. In a word, all the energy conversion process must follow the law of conservation of energy. They will never appear out of thin air, and will never be fully taken advantage of. 3. How to decrease the loss of solar power in general, in order to reduce the loss as far as possible, usually take the following measures: ( 1) The solar cell module and light into a vertical Angle, with 35 - in guangdong 40 degrees tilt. 2 solar battery components of open circuit voltage, short circuit current, working voltage, working current and other parameters should be consistent as far as possible, connecting cable should be as short as possible. ( 3) If the battery in series, the internal resistance of all units should as far as possible consistent and as small as possible. ( 4) In order to reduce the loss of the line between the conditions allow, should be used as low voltage high current, make the line as small as possible under the current, thereby reducing wear and tear. In the design of control circuit, should be used as high integration, stability good components.