PV Gap

Juanita Said:

it is possible to run a 300watt power inverter with just a solar panel or is required to have the battery?

We Answered:

Yes, it is.  However, you have two problems:

1.  You'd have to have at least as many solar panels as you need to feed the immediate load from the inverter.  If the inverter needs 500 watts to supply the starting surge for some gadget you've got, you need 500 watts of panels.  This runs into $$$.

2.  Without a battery, two bad things happen:
  a.  You throw away any power you aren't using that instant.
  b.  You don't have any stored power to run if e.g. a cloud goes by.

Batteries are cheap compared to solar panels.  The smart thing is to size the panel for your average demand, the inverter for your *peak* demand, and the battery for the amount of energy you need to deal with night, clouds, nitwits standing in front of your panels, etc.