Erm, no. Not as long as I have diesel for my big Mutha genny, Ole Bean!
All down to forward planning. In both houses I built, I had a change over switch installed. Not used the one here much in 8-9 years, but when we want it, it's very nice to just wheel the genny around, plug in, and get on with life...
The earlier place had an LPG combi that of course, needed electric to run it. Not much, just 50watts as I recall, so in theory, manageable from an Inverter, BUT, they produced the wrong flavour of juice....