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Household battery storage surges as plunging solar tariffs improve the economics (www.abc.net.au)

submitted 2 weeks ago by [email protected] to c/[email protected]

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In short:

Around 75,000 battery storage systems were installed last year, up 47 per cent from 2023.

Current modelling estimates the payback time on a battery system at around eight years for a typical household.

What's next?

A wide range of experts, including a former RBA deputy governor, are calling for the federal government to introduce household battery subsidies to encourage uptake.

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[–] [email protected] 2 points 2 weeks ago

We had a big solar array and oversized battery installed about a year ago. I have custom control logic setup that lets me discharge the battery to the grid when the electricity price spikes at night. We are on a electricity retailer that provides real-time pricing. This system means we draw nearly zero power from the grid, nearly zero demand charges, and usually earn about $3 to $5 a day selling at night. About once every 2 months there is a huge price spike and we earn $20 to $80 during the night which is a nice cherry on the top.

On cloudy days my logic charges the battery from the grid when power is cheap so we don't draw power at night when it's expensive.