This term, Peak Sun Hours, represents the average amount of sun available per day throughout the year. The daily average of Peak Sun Hours, based on either full year statistics, or average worst month of the year statistics, for example, is used for calculation purposes in the design of the solar power system. So it can be concluded that the power of a solar system varies, depending on the intended geographical location. Folks in the northeastern U.S. will need more solar panels in their solar power system to produce the same overall power as those living in Arizona. We can advise you on this if you have any doubts about your area.
Solar panels charge the battery, and the charge regulator insures proper charging of the battery.
The battery provides DC voltage to the inverter, and the inverter converts the DC voltage to normal AC voltage. If 240 volts AC is needed, then either a transformer is added or two identical inverters are series-stacked to produce the 240 volts. The output of a solar panel is usually stated in watts , and the wattage is determined by multiplying the rated voltage by the rated amperage. So for example, a 12 volt 60 watt solar panel measuring about 20 X 44 inches has a rated voltage of 17.1v and a rated 3.5 amperage. Naturally, cloudy days will produce less power than bright sunny days as well.