Q How to estimate the maximum efficiency of a solar panel?
A In order to estimate the maximum efficiency of a photovoltaic module, it is firstly necessary to know the irradiation where an installation may be performed. It is possible to find out many free tools on the Internet, which allows to get an estimate of the irradiation. For example, we suggest the Solar Electricity Handbook to you.
After all the information have been acquired about, the result must be divided by 1000 watt. The result will provide the maximum efficiency as the number of hours during which a solar panel will work at maximum power.