A friend of mine (Pierre B.) gave me some old PV panels, with a challenge:
Find a novel way to put them to use.So I put them on a sled.
I can drag them around and provide power to various things.
No... not very useful... yet...
It folds down when being dragged around:
The panels are old amorphous things. 6 Volts open-circuit and 7 Amps short-circuit. So I have them connected all in series and they do actually produce 36V. And nothing seems to be wrong with the wiring because in the full sun I measured up to 7.6 Amps shorted. These can be brought around beside my main 24V battery stack for additional charging, unless I choose to take them somewhere else.
Since we have horses, there are lots of electric fences. I'm going to get a battery-powered electric fence unit and see if I can't get it to work from the solar - perhaps even without the battery at all and just run it directly from the solar panels. Horses only need to be zapped once in a while to maintain respect for a fence, so it's OK for the electric fence to be active only during the day.