The generation rates for solar panels depend on three main determinants:
1- Time: The daily generation of electrical energy from the plates is in the form of a curve that starts at the sunrise at zero and reaches the peak in the back and then begins to decline again until it reaches zero again in the sunset. This daily curve changes in time also during the seasons. The day is longer in the summer and the peak value is greater. Thus, electricity generation is higher in the summer.
It is known that the generation of the solar panel to the energy does not show the nature of the nominal value of it, the 250-watt element was written on this value based on a standard laboratory test, but in fact the generation of electricity will not exceed 190 watts (70% of its nominal value) Due to the unavailability of these laboratory conditions in nature
2- Location: Panel generation rates vary according to geographical location as in the solar energy map on our site
https://nasrsolar.com
In general, the rates of generation decrease as we move away from the equator. Also, the closer we get to the equator, the smaller the differences between the two generation cycles. The opposite is true. In northern Europe, the solar generation of solar energy is reasonable Very low in the winter, where the duration of the day and the weakness of the intensity of solar radiation
3. Directing the solar panels: As explained in the video guide solar panels
https://www.youtube.com/watch?v=nNJO2gelYVs&t=25s
The more the solar panels are close to being vertical to the sun, the higher the electricity is. The opposite is true. It is also true that the two-axis panels achieve power generation at 20% of the panels installed on fixed structures. From the economical installation of fixed structures.
At the end of the Vedic period, a simplified method is used to learn the curves of power generation using the program of the American Renewable Energy Research Institute
http://pvwatts.nrel.gov/pvwatts.php