24 v inverter efficentcy

Here is a nice data sheet for Victron products--Same wattage across 12/24/48 volts and from small to medium sized:

https://www.solar-electric.com/lib/wind-sun/Phoenix-Inverter-VE.Direct-250VA-1200VA-DS.pdf

According to their chart, there is around a 1% difference between 12 volt and 24/48 volt inverters (higher VDC input, slightly more efficient).

Notice the larger the Wattage Inverter, the higher the "Zero Power" (Tare losses) are.

More or less, find the smallest (Wattage) inverter that will meet your needs. Small loads on large inverters are generally less efficient (higher zero power/tare losses).

PSW/TSW inverters tend to have higher tare losses vs MSW.

Inductive/non-linear loads tend to be much less efficient on MSW inverters vs PSW. The "lost MSW energy" ends up in the induction motor / transformer / some power supplies as "waste heat" (can be damaging--Shorten the life or even kill some devices).

The bigger issue is problems sending 12 volt power (current) with low voltage drop any distance over a few feet... You need very heavy copper cable to keep the 12 volt wiring voltage drop to less than ~0.5 volts (or loads) or less than ~0.1 to 0.05 volts for charger to battery bank connections.

-Bill