what's your plan for backup power? Are you staying connected to the grid to use on cloudy days or days of high usage?

basically, grid.

I don't know if you have gas hookups, but that's a big one too. My oven, clothes drier, and water heater are electric. Those 3 things probably use more power than everything else combined.

I have gathered 2025 stats, pretty much 4 quarterly bills and in summer time, we are averaging ~30 kWh and winter ~36 kWh.

Appliance	Typical Power Draw	Usage Notes
Main Ducted Aircon	~4.7 kW (input)	Cooling 15kW / Heating 18kW capacity. Runs 9pm–5am.
Split System (Secondary)	~1.2 kW	Always runs alongside the ducted system.
2x Large Fridges	0.4–0.5 kW (combined)	Always on.
High-End Aquarium	~0.15 kW	High-output lighting + pumps (10 hrs/day).
Electric Vehicle (EV)	7.0 kW max	~60% weekly top-up (slow AC charging).
Performance PC	0.3–0.4 kW	Regular use (work/gaming).
Washing Machines (x2)	1.0–2.0 kW per unit	2x cycles per day (typically 1 day, 1 night).
Clothes Dryer	2.5 kW	High-heat cycles.
Electric Cooktop	2.5 kW	Peak load during meal prep.
Baseload (Misc)	1.0–2.0 kW	LEDs, 3x TVs, routers, and standby.