In a gridconnected PV system an inverter is used to convert

In a grid-connected PV system, an inverter is used to convert: a) AC to DC: b) DC to AC; c) single phase to three phase. Answer 1.2 (5%) Among the parameters PR, MR, and AR, which one contains the losses of the PV module due to temperature about 25degreeC? a) PR; b) MR; c) AR; d) none. Answer 1.3 (5%) In a solar cell, the maximum power point is usually near: a) the maximum current; b) the short circuit current; c) the open circuit voltage. Answer 1.4 (5%) In a two-diode model for a solar cell, which one of the followings consists of the internal resistance of the solar cell? a) series resistance; b) bypass resistance; c) shunt resistance. Answer 1.5 (5%) A hybrid PV/T module can produce: a) both hot water and cold water; b) both electricity and heat; c) both hot water and hot air. Answer 1.6 (5%) Compared to roof-mounted solar PV module, a roof-integrated solar PV module will have larger electrical energy loss, is this correct? a) Yes, b) no; c) it depends on PV material. Answer 1.7 (5%) In a photovoltaic facade, the direct solar gains are described by the following constant: a) G; b) gvent; C) gtrans. Answer 1.8 (5%) In glazings, higher transmittances are observed for solar irradiance at: a) long wave; b) short wave; c) higher G value. Answer

Solution

1.1) DC to AC

1.2) MR

1.3) maximum current

1.4) series resistance

1.5) both electricity and heat

1.6) yes

1.7) g_trans

1.8) higher G value