Ghurd:
ok now i see your point, that being a lack of relatively inexpensive
or rather priced competitive 24 volt inverters, competitive with those that are
commonly available for 12 volt use.
that makes sense
an alternative for 24 volt inverters are using ups's as inverters.
the apc ups's (smartups)are 24volt dc buss up to about 2kva, above about 2.2 kva they are 48volts and and there are some like the matrix series that are 5kva and 24volts as well as their symmetra series that are 2 to 6kva and 120volt dc.
all are pure sine wave, some are pretty darn good in that they draw very little power at idle, have respectable efficiencies, and can be picked up with dead batteries for literally a penny on the dollar of new prices. the vast majority of them are dead because of dead batteries in my experience.
certainly an option if one wants to experiment with 24 or 48vdc inexpensively.
of mention, the xl or xr series ups units are made to run continuously at rated load. i have also found their surge rating is limited by the small internal batteries and when connected to larger battery banks provide similar surge capability of more common inverters. my 1400xl are rated at 1050 watts and will surge over 20 amps for a couple seconds, albeit with a voltage drop, and can provide up to 1600watts for a few seconds with no voltage drop.
from an experimental viewpoint they are impossible to beat in my opinion.
i have also found the sine wave quality is quite nice, and markedly better than the mains power supplied to my home, hz stays dead on 59.9 hz from no load to full load
whereas my mains/utility power fluctuates as much as .8hz over several minutes.
i think we get our power from hydro and perhaps they don't regulate as well as i would have thought?
i paid 50 bucks each for the 1400xl rack mounted inverters, its hard to imagine a better built inverter for 50 bucks, anywhere.
bob g