Fronus X1-GENKi 12kW Single-Phase Off-Grid Inverter

Note: No grid export and no net metering. Verified on the Fronus product page: this model has no Grid-Tie Operation block and no feed-in voltage or frequency range, so it cannot synchronise to WAPDA or K-Electric. It will still take utility or generator in as a backup source and charge the battery from it - that is not the same as being grid-interactive. Runs as an off-grid system: it runs the load from PV and battery and accepts grid or generator as a backup source, but it does not export, so it cannot be net-metered. Standard 48 V bank (40-60 V), lithium or lead-acid, 250 A charge and discharge. 3 MPPTs with two strings each at 32/32/32 A, short-circuit 40/40/40 A, window 50-550 V on a 600 V ceiling - a much wider input than the 6 kW model, which runs 80-520 V on a 550 V ceiling. EPS 12000 VA continuous with 24000 VA peak for 10 s and switchover under 4 ms. Note this is a completely different chassis from the X1-GENKi 6kW: 38.5 kg against 17.3 kg, so plan the mounting. IP65, smart cooling. Specification taken from the Fronus catalogue - no standalone datasheet PDF was supplied for this model.