10.3kw Solar Battery for under 4k

Thoughts on a 10.3kw solar battery from shinehub after rebates. Total out of pocket $3930 in Victoria

Comments

  • I was considering a battery too for my setup and I'm in Melbourne.

    I was talked out of it by the solar installer.

    He said it would be good for Cairns or some constantly sunny place like that, but Victoria is only sunny - sunny for summer and even then, the amount stored is only a trickle each of those days (after usage) such that the battery is likely to be empty for the rest of the year.

    Mine is only a 7.6kw? Something like that, can't remember right now but definitely not 10kw

    • On a good day you should be producing 21kwH per day. If you have a 8kw battery after charging you'll still get 10kwh to use?

      This page says 1kw system in Melbourne produces 3kwh a day

      Battery pay back is too long. The retailers are hoping people will jump on so they can access it. Nothing like someone putting the upfront cost and they make a cut (bit like Uber).

  • Is there an income cap on the battery rebates? Every time I've looked into rebates the household income cap is ridiculously low.

    • Interested to know this as well, as batteries have been outrageous prices when I looked into it.

    • 180k combined. Unfortunately I qualify

      • -3

        These subsidies are ridiculous. $180k is way below the household income for two professionals.

        • +2

          Some would suggest that $180k you should be able to afford those things, not relying on govt subsidies.

          Heck, I could afford it on significantly less than that - but I don’t eat smashes avo on toast or buy lattes.

  • +2

    A Tesla battery is about 14Kwh and costs about $14k installed so this doesn't sound like a bad price?

    Those solar numbers sound low quoted above, our solar system is 6.93Kw 14 panels facing north and 7 west. In summer we've broken 50Kw on a handful of days, most days at the moment are 40+. A 10Kw battery would mean we'd draw nothing from the grid unless we need to use the AC overnight.

    In winter we were generating 14-18Kw on average, so we'd still get enough to cover a lot of our overnight usage as well.

    The two bills we have had since installing solar were $20 and $160, so it would still be a significant payback period at $4k if we got our bills down to zero. I'd anticipate never owing them money by the end of a bill period though, so might be better than I think.

  • Based in Melbourne, we have a 6 kW system and for the 3 months ended 15 Jan we received a feed-in credit for 395 kW. At a value of 20c per kW, storing that surplus in a battery would save us just $80 for the 3 months - def. not worth investing in a battery.

  • I currently get 10c feedin and last qtr fed 800kw back so only $80 credit. Keeping the power would save me about 2k a year in usage so payback would roughly be two years. Even if only half what I calculate should be paid off in 4 years.

    • What tarrifs are you on?

      Assuming complete charge/discharge of 10.3kwh each day, best case 2k saving would mean you pay 53c/kWh during night time/off-peak.

  • What subsidies?

    Can you draw power out of the grid through a controlled load metered tarrif?

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