Comment by loeg

2 days ago

You'd spend $1000 to save $0.20 on electricity every day?

The average price of power in Australia is 34 cents per kWh. The average Aussie spends A LOT more than $0.20 per day.

  • GP isn't talking about a full day's use, but "free electricity for an hour or two each day (or even each week)."

    • The whole reason to spend the money on the battery is so you can use the free power for a lot longer than an hour or two!

    • You'll want to draw as much power as possible while its free, and use it duing peak times.

7.3% return, not bad. As battery prices drop it will get even better.

  • It's not 7.3% return rate. There's some depreciation you need to add there.

    • If you're going to depreciate the battery then your return will be substantially greater than 7.3%. You can't use BOTH the capex AND the depreciation as your denominator, choose one.

Where I live, $1000 would get you about 3kWh of battery power, which would pay for itself in a couple years