From the panels on the roof to the inverter that creates the AC current, there are hardly any moving parts. For most people the only reason they're aware of the system is when their energy provider sends them a cheque each quarter. The life expectancy of the systems are in excess of 25 years and some panel manufacturers actually guarantee the performance over that period.
The array of panels, connected in series or in parallel to create the correct voltage, transmit Direct Current (DC) to an inverter. This clever bit of kit introduces a sine wave into the current which matches the 50Hz Alternating Current (AC) found in your home. The AC travels to your consumer board (via a Total Generation Meter) to be used locally or on the grid.
