Solar power generation method DC

Solar panels generate electricity through the photovoltaic effect. When sunlight hits the solar cells within the panel, it excites electrons, causing them to move and create an electric current. [pdf]

How much tilt should photovoltaic panels have to be to be effective

To optimize performance, tilt your panels at an angle that is 10-15 degrees less than your latitude. For example, if you live at a latitude of 40 degrees, set your panels at about 25-30 degrees. [pdf]