题目内容

Mr. Smith is considering solar panels with the following specifications:Power output = 100 WpVmpp = 16 VImpp = 6.25 AVoc = 18 VIsc = 7 AAssume that the combined efficiency for the cables, the charge controller and the battery system is 90% and that of the inverter is 96%. How much energy in Wh must the panels produce to cover the electricity demand of the family Smith in one day? ______

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Family Smith has a small house in the country side which is not connected to the grid. The place enjoys 3.5 equivalent sun hours. Therefore, Mr. Smith has decided to install an off-grid PV system in the house to supply their electricity demand. The house electricity needs are summarized in the table below.What is the total energy demand Wh? What is the total power demanded by the DC loads in W? What is the total power demanded by the AC loads in W? ______

Family Smith has a small house in the country side which is not connected to the grid. The place enjoys 3.5 equivalent sun hours. Therefore, Mr. Smith has decided to install an off-grid PV system in the house to supply their electricity demand. The house electricity needs are summarized in the table below.What is the total energy demand Wh? What is the total power demanded by the DC loads in W? ______

Family Smith has a small house in the country side which is not connected to the grid. The place enjoys 3.5 equivalent sun hours. Therefore, Mr. Smith has decided to install an off-grid PV system in the house to supply their electricity demand. The house electricity needs are summarized in the table below.What is the total energy demand Wh? ______

Now suppose that the PV module mentioned above is set up using a series connection of solar cells with the above mentioned specifications. Two of the solar cells have gone faulty (completely stop generating power), but fortunately you have bypass diodes connected across the faulty solar cells. Assume that the bypass diodes are ideal (they have a zero voltage drop when conducting).What is the measured open-circuit voltage (in \(V\)) of the above PV module with the faulty solar cells? ______