"Brian Gaff" wrote in message
...
Far more of an issue is synchronising the frequencies and putting crap on
the local supply or even creating RFI from the inverter in my experience,
which is not much here, but from those who rushed out and got it, there
have been issues.. grin.

Brian

Drivel.
Grid tie inverters are relatively cheap because they don't have to create
their own sine wave out of nothing.
They are more like an amplifier , input sinewave from the mains, so perfect
sine wave and perfectly sychronised.