Solar electrical generation is really very simple. Photovoltaic (PV) panels are installed in a location that absorb the suns light energy. When sunlight hits the panel, it activates the electrons inside the cells to move.

The movement is controlled and directed in a flow. The flow is DC (direct current) electricity. The DC electricity is then conducted through copper wire to an inverter. The inverter converts the DC electricity to AC electricity. AC (alternating current) is the type of power that most people are used to. The AC electricity is then fed into the main distribution panel. The electricity generated flows into the general electrical system. Any excess electricity flows out to the grid. The out bound electrical flow turns the electrical meter backwards. When the sun is not shining the electrical needs are fulfilled from the grids electricity. This process is called "Net Metering". In a net metering system, the utility company issues statements once a month, but billing is only generated once a year, thereby balancing the seasonal fluctuations over the course of a year. If your meter is to the plus side you owe the utility for the electricity used. If it is to the minus side you don't owe them anything.