Just getting the power down the tower, forgetting charger and inverter efficiency...
If you're at 5% losses using 12V down-the-tower to go to 24 halves your current line losses, to 48 halves that again.
Example: if at 5% line losses now, reusing your drop lines...
if 1kwh daily harvested (avg) = 365000 watt hours yearly - at 12V 18.25kwh lost, at 24V 9.13kwh lost, at 48V 4.6kwh lost.
At those numbers 48V is two weeks free wind power over 12V and five days free over 24V.
I went 48V, still don't have a complete system up, but paid myself back with banked kilowatt hours to cover any hassle