SA Solar Feed-In Tariffs 2026

Glanced at your power bill lately? The solar credit probably looks smaller than it used to. You’re not imagining things.

Solar feed-in tariff rates in SA 2026 have kept sliding. A new export charge from SA Power Networks has added another layer most homeowners don’t fully understand yet.

For a lot of Adelaide households, this is the first time they’ve really looked at what their system earns, rather than what it produces. Those are two very different numbers. The gap between them has been growing for years. It’s part of why more homes are turning to solar and battery systems that lean on storage rather than export.

This guide explains what’s changed, what a fair rate looks like right now, and how to check whether your own system is pulling its weight. Rates and rules vary between retailers and can shift again. Treat the figures below as a general guide, not a quote for your specific plan.

What a Feed-In Tariff Actually Is

A feed-in tariff, or FiT, is the credit your retailer pays for solar power your system sends back to the grid. It applies whenever your panels produce more than your home is using. It shows up as a line item on your electricity bill, priced per kilowatt hour.

It’s easy to assume this rate is fixed by the government, the way it was when solar first took off in Australia. That’s no longer the case. Retailers now set feed-in tariffs based on wholesale electricity prices, and the rate can change from one billing cycle to the next.

Solar Feed-In Tariff Rates in SA 2026

Current Retailer Rates

As things stand in 2026, most South Australian retailers pay somewhere between 0 and 10 cents per kilowatt hour for exported solar. The typical rate sits closer to 5 to 8 cents. There’s no state minimum, so the exact number depends entirely on your retailer and plan.

For everyone on a standard plan, export rates have fallen a long way from where they used to sit. Buying power from the grid still costs several times more than what you’re paid for sending it back. That gap is the main reason self-consumption has become the smarter goal for most households. It’s also worth understanding what pushes a bill higher in the first place, especially on days when no sun means higher grid reliance and higher tariffs than usual.

Legacy High Rate Customers

A small number of long-term customers are still on legacy arrangements from the original SA solar scheme. Some of these pay as much as 44 cents per kilowatt hour. These older contracts are winding down and won’t be available forever.

If your system is still on one of these higher legacy rates, it’s worth keeping the original equipment compliant and in good repair. Swapping or upgrading components can sometimes affect your eligibility for the old rate, so it pays to check before you change anything.

The New Export Charge and What It Means for Your Bill

Since mid-2025, SA Power Networks has applied a two-way tariff, sometimes called a solar sponge charge, on exports made between 10am and 4pm. It only applies above a daily export allowance, generally around 9 to 11 kilowatt hours depending on your meter. Smaller systems and households using more of their own power during the day are less affected.

This charge is technically billed to your retailer, not to you directly. Most retailers have responded by trimming feed-in tariffs slightly rather than adding a visible new fee. In practical terms, the middle of the day is now the least valuable time to be exporting heavily, even though it’s when your panels produce the most.

None of this is fixed forever. Network charges and retailer responses to them can shift again as more homes add batteries and the grid adjusts. It’s worth checking your own plan every so often, rather than assuming last year’s numbers still apply.

Is Your System Actually Earning What It Should?

A fair feed-in tariff only helps if your system is exporting as much as it’s capable of. A surprising number of underperforming systems get blamed on the tariff when the real issue is closer to home.

Common Causes of Lost Export

• Dirty or dusty panels reducing output
• A fault developing inside the inverter
• New shading from a tree or nearby structure
• Settings left over from a previous retailer switch
• An undersized or ageing inverter struggling to keep up

Any of these can leave your system producing well below what it’s rated for. If you haven’t checked in a while, it’s worth comparing your current output against your system’s rating to see if anything looks off.

How to Check Your Numbers

Modern inverters usually have an app or portal showing daily generation and export figures. If yours doesn’t, or you’ve never set it up, it’s worth looking into. Remote monitoring tools make it far easier to catch a drop in performance before it costs you months of lost credits. A smart inverter upgrade is also worth considering if your current unit is older and doesn’t offer this kind of visibility at all.

If it’s been a while since anyone’s had a proper look at your system, book a solar safety check and clean. It’s a straightforward way to confirm everything is working properly, and to get the best ongoing performance from your solar, rather than guessing based on your bill alone.

Why a Home Battery Matters More Than Ever

Export rates are low, and there’s now a charge attached to the middle of the day. The maths on exporting your solar has shifted. Using your own power, or storing it for later, is worth far more than sending it to the grid for a few cents.

A battery lets you capture the solar your panels generate in the middle of the day and use it in the evening instead. That’s when grid electricity is at its most expensive. For a lot of Adelaide homes, this has turned batteries from a nice-to-have into the main way solar actually pays for itself.

If you’re weighing up options, this rundown of the better battery choices for Adelaide homes is a good starting point. Our solar battery storage service covers everything from sizing through to installation.

The CHBP Rebate Can Help Cover the Cost

The Cheaper Home Batteries Program, along with related state incentives, can take a meaningful chunk off the upfront cost. Rebate amounts and eligibility rules do change, and funding for these programs has tightened before as demand has grown. It’s worth checking the current details of the CHBP rebate before assuming a figure you’ve seen elsewhere still applies.

Sharpe’s team can walk you through what you’re eligible for. We can also handle the paperwork and installation together, so you’re not trying to figure out rebate conditions on your own.

Make Your Solar Count

Feed-in tariffs in SA aren’t what they used to be. The new export charge has made the middle of the day less rewarding for anyone still relying on exports for savings.

The good news is that most of what determines whether your system earns its keep is within your control. That includes keeping panels and inverters in good shape, and adding storage where it makes sense.

Sharpe Trade Services has been working on Adelaide solar systems for 45 years. Every job comes with in-house licensed technicians, a 10-year workmanship warranty, and $20 million in insurance behind it. If you’d like a clear picture of how your system is performing, book a visit through Easy Book. We’ll take it from there.