this post was submitted on 02 Feb 2026
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Discussion Thread ๐Ÿ‘ Tuesday 3 February 2026 (aussie.zone)
submitted 3 days ago by melbaboutown@aussie.zone to c/melbourne@aussie.zone
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Yarrabyte is taking a self care day

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[โ€“] SaneMartigan@aussie.zone 5 points 2 days ago* (last edited 2 days ago) (1 children)

My research into getting a home battery:

  • The inverter size is how much you can feed back into your house/the grid, eg, 5/8/10kw. The rest you'll draw from the grid. Eg running AC and the induction cooktop at the same time will be a large load, 10kw can come from the battery, the rest comes from the grid.
  • Battery backup (power outage) works for three circuits limited to 10amp each. Eg, fridge, lights, tv/modem. Running the cooktop or high power AC doesn't seem feasible for battery backup.
  • The rest of your electrical system needs to be up to scratch to handle it. My old house needs a mains upgrade.
  • Michael from Victorian Power Savers was super helpful. Got a quote for ~42kw of FoxESS battery and a 10kw inverter for ~$6,800 but I'd need to spend a bit sorting out things on my end first. ( ~$2k)
  • Feeding/Selling power back to the grid you need an 8+kw inverter.
  • The battery needs to be 600mm from a window or other appliance (eg AC).
  • If mounted next to a living area a concrete fireproof sheet needs to be installed. If near car parking bollards are required.

My main reason for it was to keep the AC and cook top running in power outages. That doesn't seem possible so I think I'm putting it on the back burner for now.

[โ€“] Seagoon_@aussie.zone 2 points 2 days ago

that's very expensive