6. Other parameters affecting the efficiency of solar cell
The efficiency of solar cells can also be improved using some other techniques:
Solar tracker: The maximum power point of a photovoltaic material varies with incident illumination. For large systems where the extra expense can be justified, a maximum power point tracker can be used, which can track the instantaneous power by continually measuring the voltage and current (and hence, power transfer), and uses the information to dynamically adjust the load in such a way that the maximum power is always transferred, regardless of the variation in lighting. In other words, the ability of a panel to “track” the sun means its ability to maintain the solar radiation at a perpendicular angle. Essentially, it is desired that the panels points toward the sun.