题目内容
Which of the following concepts are used in the PERL (Passivated Emitter Rear Locally diffused) solar cell?Note that more than one correct answer is possible.
查看答案
搜索结果不匹配？点我反馈
更多问题
Which of the following statements is false?
What kind of losses are related to the design of the top contact of a solar cell?
Consider a purely grid-connected PV system, i.e. without any battery storage.The PV array efficiency is 20%, while the grid-connected inverter efficiency is 90%. Assuming a 2% loss in the cables, what is the combined efficiency of the PV system from the PV array to the grid?
Now, since the system is not connected to the grid, the family Smith will also need some energy storage. Mr. Smith has specified that, since it is a weekend house, only 2 days of autonomy will be needed. In this case, batteries with the following specifications will be used:Battery capacity = 100 AhBattery voltage = 12 VMaximum allowed depth of discharge = 50%The system is designed to use 24 V as operating voltage. What will be the minimum needed battery capacity in Ah? How many of the specified batteries will be needed? ______
微信支付 
支付宝支付