Solar panels should point south in the northern hemisphere and point north in the southern hemisphere.
Solar panel inclination calculator.
In case the roof is very steep you may not be able to get the most optimal tilt angle for the panel especially if it is lower than the angle of the roof.
If your solar panels will have a fixed tilt angle and you want to get the most energy over the whole year then this section is for you.
Solar panel tilt calculator this calculator will help you determine the optimum tilt for your solar panel based on your latitude.
To get the best out of your photovoltaic panels you need to angle them towards the sun.
The violet line is the solar energy per day if the panel is fixed at the winter angle discussed below these figures are calculated for 40 latitude.
For this calculator latitude is positive to the north and longitude is positive to the west of the prime meridian.
Most roofs have an inclination of 30 to 40 degrees.
Solar angle calculator this solar angle calculator tells you the optimum angle to get the best out of your system.
At this level the solar panel can lie flat on the roof and get enough sunlight to produce enough electricity.