Solar Panel Inverters
Today's inverters are very efficient and reliable.
Some PV systems are designed to run DC loads exclusively and do
not need an inverter, however an inverter is necessary in any
PV system in which you want to run AC applications and tools,
or if you are intending to interface your PV system with the
Utility.
Most grid-tie inverters are simple machines that are dedicated
to converting the DC current from a solar array into AC current
and feeding it into the utility grid.
Where you begin to see a huge variety of inverter types is when
you start to shop for grid-tie with battery back-up or
stand-alone inverters. At this point inverters tend to be made
to address specific markets and tasks.

