Wait, capped at 24 kWh a day? Our household consumed 8 kWh per day over the past week (gas cooking, no airco). So with a home battery that sinks 10 kWh during those 3 hours you have minimal energy costs?
Yes - the regulated offer is capped at 24 kWh per day but some retailers such as Globird and CovaU are offering plans which include up to 50 kWh per day of ‘free’ electricity. With a large enough battery and inverter you could just end up paying daily supply charges of $1.65-2.20 per day.
Critically, that cost excludes the amortized amount the batteries will be over that period. And if you're cycling them every day like this, they're not going to last more than 15~20 years.
It actually alludes to a significant problem. Solar generation is realitely cheap, much more storage is needed. Storage (overnight and also for several days) is challenging - one reason being its more expensive. Then there is the new transmission lines needed.
it's much much more expensive, people like to repeat the line that solar is the cheapest form of energy while hand-waving away batteries and grid upgrades required. I did the napkin math a while back but a battery bank for 10's of thousands of homes for 48 hours costed as much (more?) than just building a nuclear power plant.
The Australian scientific body, the CSIRO, did an extensive report on the full life costs of various energy strategies and concluded that nuclear made little to no economic sense in Australia.
Perhaps had they used a napkin they would have agreed with you.
Is it so out of the ordinary that a government tries to help people save money or what's the question? Sounds like you've only had the American experience in life unfortunately.
If something actually saves money then it doesn't require a subsidy because people would be doing it regardless. Meanwhile the government doesn't have any of its own money, so it can't really give you something that was yours to begin with, all it can do is take it from you and then give it back with strings attached. How is that helping you? Instead of subsidizing something you can make up your own mind about whethe…
> If something actually saves money then it doesn't require a subsidy because people would be doing it regardless.
…assuming people are good at math.
And given that most people probably don't have a bunch of cash just sitting there doing nothing, they will have to take out a loan and most folks probably don't like going into debt even though 'the math says' it's a good ROI.
The idea that 'ROI good, therefore people will do it' is the 'spherical cow' of economics. In reality there are all sorts of other motivations for human economic actions:
First world problems but my Australian retail plan already offers a free period between 11am-2pm without any usage cap, so now with this policy introduction i'm worried my provider will introduce such a cap under the guise of 'its what the government says we can do'.
With 3 hours of free power, a 15kW inverter and a 42kWh battery, I could almost do away with my solar panels and just survive of free grid power. I do have a 15kW solar panel set up, but I get very little from selling anything back to the grid.
Yes. With the 'free' power plans, you are better off not installing solar and investing the savings in a larger battery.
This article is misleading as it implies that Australian energy retailers must provide every household with 3 hours of free electricity. This is not the case. From 1 July 2026, Australian energy retailers with more than 1,000 customers must offer at least one energy plan which includes 3 hours of free electricity, capped at 24kWh per day, to residential customers in 3 states - NSW, SE Queensland and South Australia.…
Wait, capped at 24 kWh a day? Our household consumed 8 kWh per day over the past week (gas cooking, no airco). So with a home battery that sinks 10 kWh during those 3 hours you have minimal energy costs?
I pay about 38c per kilowatt plus $1.70 per day for the connection fee. So by that maths, you'd save 8×0.38=$3.04 per day. A 10kWh battery is in the ballpark of $4000. So it'll take about 4 years to break even.
Then you'd just have to pay the connection fee, which seem to be increasing every year.
These are things where policy is set by government and so could be moved by your elected representatives. If you already have a preferred flavour of representative, try to get them to want to do this. If you don't, here's an issue that could make you prefer one over another, make sure they know that.
Single customers having these issues don't really have any power to convince representatives. Historically, the only real way to enact change in this way is to have thousands of people contacting their representatives about it.
Unless I misunderstood them, this is a common problem so there's no reason that wouldn't happen though.
If something actually saves money then it doesn't require a subsidy because people would be doing it regardless. Meanwhile the government doesn't have any of its own money, so it can't really give you something that was yours to begin with, all it can do is take it from you and then give it back with strings attached. How is that helping you? Instead of subsidizing something you can make up your own mind about whethe…
> If something actually saves money then it doesn't require a subsidy because people would be doing it regardless. …assuming people are good at math. And given that most people probably don't have a bunch of cash just sitting there doing nothing, they will have to take out a loan and most folks probably don't like going into debt even though 'the math says' it's a good ROI. The idea that 'ROI good, therefore people w…
To be clear, this doesn't change the price floor for ROI calculations. A non "approved" contractor or DIY job non-subsidized is well cheaper than a piddly few percent interest rate arbitrage to a pre-approved list. This does nothing beyond let some rich contractors regressively allocate money from taxpayers to themselves by artificially appearing a bit less of a premium to the alternatives.
It looks more like to me some installers saw their industry was becoming commoditized and the government got together with them to figure out how to grift taxpayers into making the more connected ones command a premium while simultaneously being better positioned to eat the lunch of the small middle class "guy and a truck" who does cash jobs for cheap but has no resources to become "accredited" on a subsidization list.
Wait, capped at 24 kWh a day? Our household consumed 8 kWh per day over the past week (gas cooking, no airco). So with a home battery that sinks 10 kWh during those 3 hours you have minimal energy costs?
Forget 3hrs free. We lived in the tropics in Australia with a ~6kW system and often had negative quarterly invoices (i.e. got paid by our retailer) ... esp. in winter months. Aircon, pool, appliances all electric. At the very least the pool pump ran free all year round. Edit: should add, that's straight solar no battery
> often had negative quarterly invoices (i.e. got paid by our retailer) ... esp. in winter months
"[I]n winter months"? My stupid northern hemisphere brain did a double take; I needed to remind myself that Christmas (December) is summer!
I have a 12 kW inverter (single phase) and 48 kWh battery. In Australia, 9 months of the year my 16 kW of solar fills the battery and covers all needs including cooking, heating and charging the EV. In winter, I’ve been using Ovo’s 3 hours free for about a year now and that ensures the battery is filled up daily. My electricity bill returns a credit every month since I got the battery a year ago.
I was trying to understand how to do this, and I formed the opinion that most of the battery providers don’t really allow the degree of ‘on/off’ or ‘charge/discharge’ customisation as might be necessary to make this work? Or was I fooled by the packaged products that are aiming to turn me and my battery and panels into a residential power plant at the whim of the energy company?
The most popular batteries provide all the customization you need and more. Soo many features... it is exhausting. Even 'AI' modes trying to predict usage and solar generation using weather forecasts and top up from the grid at cheap rates if it thinks the power will probably be needed. A battery like Sigenergy's you can setup on a time based charging schedule (most popular for the free power plans), or have it pull Amber's live wholesale rates and put it into AI mode to avoid using their SmartShift VPP, or just hand over the keys to a VPP provider and let them drive.