How Net Metering Works and Cuts Your Power Bill
If you've looked into solar panels and wondered what happens to the power you don't use, net metering is the answer. It's the billing arrangement that lets your solar system push surplus electricity back to the grid and give you credit for it. Those credits then offset what you owe on future bills. Here's a plain-English breakdown of how it all works.
What net metering Actually Is
Net metering is a billing method between you and your electricity retailer. When your solar panels produce more power than your home is using at that moment, the excess flows out through your meter to the grid. Your retailer records that export and credits your account at an agreed rate, often called a feed-in tariff.
At night, or on cloudy days when your panels aren't producing enough, you draw power back from the grid as normal. At the end of your billing period, your retailer calculates the difference between what you exported and what you imported. That net figure is what you pay for, or in a good month, what you get credited.
It's not a battery. You're using the grid itself as a kind of storage account. Power goes in when you have spare, and you pull it back out when you need it.
How Your Meter Tracks It
Older single-direction meters can't measure exports, so you'll need a bi-directional smart meter installed before you can participate. Most Australian retailers organise this when you connect a new solar system. The meter records both directions of flow separately, every 30 minutes in most cases.
Your electricity bill will then show two lines: electricity consumed from the grid, and electricity exported to the grid. The export amount is multiplied by your feed-in tariff rate. That dollar figure is subtracted from what you owe for consumption. What's left is your bill.
Feed-In Tariff Rates in Queensland
Queensland has a voluntary feed-in tariff scheme. Retailers set their own rates, so the amount you earn per kilowatt-hour exported varies by provider. Rates typically sit between 5 and 12 cents per kWh, while the power you buy back from the grid costs around 25 to 35 cents per kWh.
That gap matters. You get paid less for each unit you export than you pay for each unit you import. This is exactly why using solar power directly in your home during daylight hours is more valuable than exporting it. Running your dishwasher, washing machine, or hot water system during the day means you avoid buying that electricity later at the higher rate.
Brisbane households with good daytime energy habits tend to see bigger bill reductions than households that shift all their usage to the evening. It's a simple thing, but it makes a real difference.
What Net Metering Means for Your Bill in Practice
A typical Brisbane home with a 6.6 kilowatt solar system might generate 25 to 30 kWh on a sunny day. A household that uses around 20 kWh per day could export 5 to 10 kWh on most sunny days. At a 10 cent feed-in tariff, that's 50 cents to $1 in daily credits.
Over a full quarter, those credits add up. Many homeowners reduce their bills to $100 or less per quarter from bills that previously sat at $400 or $500. Some households with smaller usage reach a zero bill some quarters.
The size of your system, your daily usage pattern, your roof's orientation, and your retailer's tariff rate all affect the outcome. A north-facing roof in Brisbane produces more over the year than an east or west-facing one. These details matter when you're sizing a system.
Net Metering vs. a Solar Battery
Net metering and a solar battery solve a similar problem in different ways. With net metering, you export surplus power and buy it back later. With a battery, you store it on-site and use it yourself after dark.
Batteries give you more control and protect you against grid outages. They also cost more upfront. For many households, net metering alone delivers strong savings without the added investment. For others, combining a battery with a grid-tied solar system makes sense, especially if their retailer's feed-in tariff is low.
There's no single right answer. It depends on your usage, your budget, and how much you want to reduce your reliance on the grid.
Getting Set Up for Net Metering
To access net metering, your solar system needs to be properly installed and approved by a Clean Energy Council accredited installer. Your retailer also needs to be notified so they can switch your meter and set up the feed-in tariff on your account.
This process is standard for any grid-tied solar installation. A good installer handles the grid connection application and meter change on your behalf. You shouldn't have to chase this yourself.
Before installation, it's worth getting a solar assessment done on your home. That assessment looks at your roof, your current energy bills, and your usage patterns to work out what system size will actually match your situation. Going too small means you won't export much. Going too large without a battery means you might export more than you get real value from.
Net metering is one of the main reasons solar pays off for Brisbane homeowners. Getting the system size and setup right from the start is what makes the difference between a good result and a great one. If you want an honest assessment of what net metering could do for your specific household, book a free solar consultation and get a clear picture before you commit to anything.