Sunnn

Sunnn Solar & batteries redefined: systems that cut bills & unlock energy trading profits for you.

25/07/2026

NSW just added a new charge every time your solar sends power to the grid.

It's called an export charge, and it quietly lands on your bill each time your panels push more energy than your home is using in that moment. For a lot of households, that means the system they bought to save money is now costing them a little extra in ways they never saw coming.

Here is the part most installers skip over: the fix is not a bigger system. It's a smarter one.

When a battery is designed around your actual overnight usage, your solar fills the battery first before it ever touches the grid. Less export. Less exposure to the charge. More of what you generated staying inside your own walls.

The numbers that matter most are not the panel count on the roof. They are the ones that show how much energy your household pulls between sunset and sunrise. That shape, that overnight curve, is what a well-engineered battery system is sized to match.

The most useful thing any solar household in NSW can do right now is pull out a recent bill and look at two lines: how much you exported last quarter, and what rate you were credited for it. If the credit rate has dropped or a charge has appeared, your current setup may be working against you in ways that are worth understanding before your next bill arrives.

25/07/2026

Stop sending your solar power to the grid for absolutely nothing back.

Some Australian retailers are now paying $0 per kilowatt-hour for solar exports. Zero. So every time your panels produce more than you can use, that energy flows out to the grid and you see nothing for it on your bill.

That knot in your stomach when the quarterly bill arrives and the solar savings are nowhere near what you expected? This is often why.

The shift that changes things is storage. When a battery is sitting behind your meter, the power your panels make during the day gets held there and used by your home in the evening, overnight, when the tariff rate is at its highest. You stop gifting cheap energy to your retailer and start using the expensive energy you already made for free.

It does not eliminate your bill entirely, and results vary depending on your usage, your system size, and your retailer's rates. But households with a battery and a $0 feed-in tariff are generally in a much better position than those exporting without one, because they are consuming what they generate rather than donating it.

The most useful thing to understand right now: check your current feed-in rate on your latest bill. If it is sitting at or close to zero, your solar system may be working a lot harder for your retailer than it is for you.

24/07/2026

My last power bill hit six hundred bucks. And I have solar.

That was the moment it clicked for a lot of SA households last summer. Panels on the roof, sun blazing, and still a bill that made your stomach drop.

Here is what most people do not realise until it is too late.

SA Power Networks operates one of the most solar-dense grids on the planet. So dense that on a bright midday in spring or summer, the network can hit export limits, and your panels are told to stop sending power out. Just like that, the energy you generated goes nowhere. Not to your appliances. Not to your neighbours. Just gone.

Meanwhile, you are still buying power from the grid in the evening at some of the highest retail electricity rates in the country.

The maths of a solar-only system made sense when export rates were generous and the grid had room. SA has changed. The grid has changed. The old equation does not hold the way it used to.

A battery changes the shape of your day completely. Instead of exporting at midday for whatever the current rate happens to be, you store that energy and use it yourself from 5pm through to midnight, the window when grid power costs the most and the sun has long since set.

You are not at the mercy of export rules. You are not watching your generation disappear into a curtailment limit. You are running your home on sunshine you actually kept.

The most useful thing you can do right now is pull up your last three power bills and look at two numbers: how much you are consuming after 3pm, and what you are currently getting paid for exports. That gap is the opportunity a battery fills.

In SA, that gap is wider than almost anywhere else in Australia.

23/07/2026

My last power bill was four hundred bucks and I have solar.

That was the moment I realised I had the panels but not the play.

Here is what was actually happening: every sunny afternoon my system was pumping power back into the grid, and the retailer was paying me somewhere between 4 and 8 cents per kilowatt hour for it. Then at 6pm, when I turned the oven on and the kids were home, I was buying that same power back for somewhere around 35 cents.

I was essentially running a charity for my energy retailer.

The feed-in tariff used to be the whole story. Back when rates were generous, exporting made sense. Those days are gone in most of Australia and the rates have quietly collapsed while the buy-back price has kept climbing. The maths flipped. Most households exporting solar are now losing money compared to what they could be doing with that same sunlight.

The shift that changes everything is simple in concept: store what you generate, use it when it costs the most, and shrink what you buy from the grid to almost nothing.

A battery does not generate more solar. What it does is stop the waste. Instead of selling cheap and buying expensive, you charge the battery during the day and draw from it through the evening peak. The units you were giving away for 5 cents become the units that replace the 35 cent power you were going to buy anyway.

That gap, the difference between what you were exporting for and what you were paying to import, is where the bill shrinks.

And the part nobody talks about enough: the feeling when the bill arrives changes completely. There is no dread. You already know roughly what it will say because you watched the numbers in the app all month. The anxiety that used to sit in the background every time you turned the air con on just quietly disappears.

The one thing worth knowing before you decide anything: not every battery suits every home, and the size matters more than the brand name on the box. A system sized wrong for your usage pattern can take years longer to pay for itself than one matched properly to how and when you actually use power.

22/07/2026

Our last power bill before going solar was over four hundred bucks.

Not a typo. Four hundred dollars. For one month. In a normal suburban house.

We dreaded opening the app. Every hot day, every load of washing, every time someone left the lights on, it was money. You could feel it.

Then we switched to solar and a battery. We tracked everything for 30 days.

Here is what actually changed:

The battery charged during the day from the panels. At night, the house ran off what we had already made. The grid became the backup, not the main event.

Mornings we woke up to a battery still sitting at 40, 50, sometimes 60 percent. Washing machine running. Hot water going. All on yesterday's sunshine.

The thing most people do not realise: the battery is not just about blackouts. It is about what happens every single ordinary night of the year. That is where the value quietly stacks up, bill after bill.

A month in, the difference in what we drew from the grid was significant. We are not going to throw a number out here because every home, every roof, every usage pattern is different and we would rather be honest than impressive.

But the knot in the stomach when the bill arrives? That part is gone.

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Melbourne, VIC
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