If the grid goes down for a long time I imagine it would be practical to wire the panels in parallel but then the current would obviously go up tremendously. In that case I guess it would be wise to split them into smaller groups to run the cables initially and then combine them somewhere near a charge controller to feed into a battery bank.
If the grid is down for a shorter time would it be practical to do the following:
Use a high power H Bridge wired to a transformer rather than a motor. If the bridge was driven to switch at say 60 Hz could that then be set up to produce a lower voltage output, rectified and fed to a charge controller?
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