@kirk I hadn't spotted this years update to @tserong system - Thanks for the pointer! Bummer about redflow going under. We've gone for the riskier lump of lithium strapped to the outside of the house (Just as well Snug never has bushfi...oh). Can confirm that the #tasnetworks cablepi objects when we're off-grid. Reminds me I need to chase installer as our grid-tied inverter (on the essential load side) rightly objects to the 55.1Hz Sonnen runs at when in island mode - Want to decrease this.