Solar
Electric Power System


"Its beautiful, just like a stained
glass window" Sweet Sue on the benefits of owning a polycrystalline photovoltaic module. 

The
question of designing a solar electric
power system raises a number of interesting problems. For a remote
system, size of panels and battery storage capacity need to be
determined. For gridconnected installations the financial benefits are
of greatest interest. For gridconnected systems, we discuss a mathematical model and simulation program. In a remote installation, the electronics for charging the batteries must be able to extract the maximum power at minimum loss from the solar modules, as well as performing a number of functions such as battery protection from over and under charging, protection of the cells from reverse voltage, and powering a number of user devices from low voltage DC to the standard grid mains power, in our case, 240V AC. Before tackling the electronics, which will come later, we take a look at how to obtain a good choice of the capacities of the solar cells and battery. This is helped by studying a mathematical model of the system of solar modules and batteries.
