When there isn't enough solar energy, I fire up a generator to help.  Let's see how efficient this setup is with Chargeverters.  

The light tower is a Wacker Neuson LTN6.  It has a 6000 Watt generator head (6kVA) paired with a Kohler 1-liter, 3-cylinder, liquid cooled, diesel engine.  The setup should be fairly efficient except for one thing.  The generator head is 120 Volt only.  I would prefer 240V, but lets test this as-is for fuel efficiency.

The light tower was beat up when I bought it, so I removed the lights.  I did maintenance, and replaced the capacitor to get it working.  Now the generator works great.

I have to build a custom extension cord in order to plug in two chargers (100A Chargeverters).  These are made for charging 48V (51.2V) lithium battery banks.