To get the most from solar panels, you need to point them in the direction that captures the most sun. Solar panels should always face true south if you are in the northern hemisphere, or true north if you are in the southern hemisphere. True north is not the same as magnetic north. If you are using a compass to orient your panels, you need to correct for the difference, which varies from place to place.
For solar panels to cost-effectively generate electricity for their owners, the panels need solar exposure between about 9 a.m. and 3 p.m. Owner has to make sure that there are no obstacles that reduce the capability of solar panel to catch the light or solar. Not all outdoor area is good for solar panels. There may be trees that cast too much shade on your parking area or street, for example. So please make sure that solar panel has enough solar to catch or produce become electricity and avoid mistakes happened from images below.