Solar Export Charges in Australia: Which Networks Charge and How to Avoid Paying

Solar export charges in Australia are real, but they are smaller, more limited and more avoidable than the “sun tax” headlines suggest. As of August 2026, only three networks in NSW have introduced charges on solar exports. Queensland and Victoria have explicitly ruled them out. Every other state operates without them.

The charges apply only during the middle of the day when the grid is flooded with solar generation. On Ausgrid’s network in Sydney, the rate is 1.2 cents per kWh exported between 10am and 3pm (PV Magazine, 2024). That same network pays you about 3.9 cents per kWh if you export during the evening peak between 4pm and 9pm. The system penalises midday exports and rewards evening ones. If you have a home battery, you can turn the two-way pricing structure into a net benefit.

Here is exactly which networks charge, how much it actually costs, and how to avoid paying. For a broader look at why feed-in tariffs are falling across every state, see our guide on negative electricity prices in Australia.

What Are Solar Export Charges?

Solar export charges are network fees for sending power from your rooftop solar system into the electricity grid. They are separate from your feed-in tariff, which is a payment from your retailer. Both can apply at the same time.

Until 2021, Australian electricity networks were prohibited from charging for exports. The Australian Energy Market Commission (AEMC) removed that prohibition in August 2021 under rule change ERC0311, creating a “two-way” pricing framework. The logic: as more households install solar panels, midday generation floods the local network. Managing that two-way power flow costs money. The AEMC decided networks should be allowed to signal those costs through pricing.

The AEMC built in a key protection. Every network must offer a basic export level free of charge for at least 10 years from the rule’s commencement. That guarantee runs until approximately 2031. You will always be able to export some power without paying a cent.

Existing solar customers could not be placed on export pricing until 1 July 2025 at the earliest, unless they volunteered. From that date, networks began rolling export charges into their standard tariff structures.

Which Networks Charge for Solar Exports in Australia

Only NSW networks have introduced export charges so far. Here is what each charges and when.

Network	Region	Export charge	Window	Free threshold	Export reward	Reward window
Ausgrid	Sydney, Central Coast, Hunter	1.2 c/kWh	10am to 3pm	Below 2,500 kWh/year	3.9 c/kWh	4pm to 9pm
Essential Energy	Regional/rural NSW	0.83 c/kWh	10am to 3pm	Below 7.5 kWh/day	11.7 c/kWh	5pm to 8pm
Endeavour Energy	Western Sydney, Blue Mountains, Illawarra	About 1.8 c/kWh	10am to 2pm	About 8 kWh/day	3.4 to 11.7 c/kWh (varies by season)	4pm to 8pm weekdays

Source: Ausgrid Network Price List 2026-27 (ex GST), Essential Energy Network Price List 2026-27, Endeavour Energy 2026-27 pricing proposal to the AER (approved 22 April 2026).

Queensland: The state government explicitly ruled out solar export charges. No QLD network applies them.

Victoria: Also ruled out. Victorian networks have not introduced export pricing despite the AEMC framework permitting it.

South Australia: SA Power Networks has the highest solar penetration in Australia. The network spent $36 million on solar integration between 2020 and 2025, but has not introduced a formal export charge for residential customers (Renew Economy, 2019). SA uses strict export limits and flexible export programs as alternatives.

Western Australia: Synergy operates outside the National Electricity Market. No export charge applies. WA uses the Distributed Energy Buyback Scheme (DEBS) with declining rates: 10 cents per kWh during 3pm to 9pm peak and 2 cents per kWh off-peak.

ACT, Tasmania, NT: No export charges in place.

How Much Do Solar Export Charges Actually Cost?

For most households, the cost is surprisingly low. IPART’s assessment of Ausgrid’s charges found the average annual impact is approximately $2.50 per solar customer (IPART, 2025). That figure is low because the charge only applies to exports above the free threshold during the 10am to 3pm window. Most households self-consume a meaningful portion of their midday generation through hot water, pool pumps and general daytime loads.

A household with a large system and minimal daytime consumption will pay more. Professor Bruce Mountain from the Victoria Energy Policy Centre estimated in 2021 that export charges set at the full cost-reflective level of 4 to 4.9 cents per kWh could cost a 5 kW system in Sydney up to $240 per year. The actual Ausgrid rate of 1.2 cents per kWh is well below that estimate. A realistic annual cost for a 6.6 kW system exporting heavily during the middle of the day sits between $15 and $50 on Ausgrid’s network.

The flip side matters too. Ausgrid’s export reward of about 3.9 cents per kWh for evening exports means households with batteries can earn money by shifting their solar to peak hours. IPART’s 2026-27 benchmarks value evening exports at 17.2 to 18.7 cents per kWh on Ausgrid’s network and up to 33.3 cents on Essential Energy’s (IPART, May 2026). Those figures reflect the wholesale value of power delivered during peak demand, including network export tariffs. Retailers who pass through even a fraction of that value make battery ownership substantially more attractive.

The net position for a battery-equipped household on Ausgrid: you avoid 1.2 cents per kWh in midday export charges and earn several times that by exporting stored solar in the evening. Two-way pricing works against passive solar systems and in favour of active ones.

How to Reduce or Avoid Solar Export Charges in Australia

Four practical strategies reduce or eliminate what you pay in solar export charges.

Shift loads to the middle of the day. Run your dishwasher, washing machine, pool pump and hot water system between 10am and 3pm. Every kilowatt-hour you use directly from your panels is one fewer exported to the grid. Smart plugs and timer switches cost under $30 and automate this. If you have an EV, a solar-diverting charger like the Zappi or Fronius Wattpilot can absorb surplus generation before it hits the grid.

Install a battery. A home battery captures midday surplus and discharges it in the evening. This avoids export charges entirely during the 10am to 3pm window. On a time-of-use electricity plan, every stored kWh is worth 25 to 35 cents in avoided grid purchases, compared to 3 to 7 cents from a feed-in tariff. The federal Cheaper Home Batteries rebate reduces the installed cost of a battery by around 30 per cent (Clean Energy Regulator, 2026). See our guide on whether a home battery is worth it for the full payback maths.

Use dynamic or flexible exports. Some networks offer higher export limits in exchange for remote management of your inverter via the CSIP-AUS protocol. SA Power Networks and several Victorian DNSPs use this model. Your inverter communicates with the network in real time. When the local grid has capacity, you export freely. When it is congested, the network temporarily reduces your export. This gives you higher average exports than a fixed limit, without triggering congestion charges.

Stay below the free threshold. On Ausgrid, exports below 2,500 kWh per year are not charged. On Essential Energy, exports below 7.5 kWh a day are free. If your system is small or your daytime consumption is high, you may never exceed these thresholds. Check your inverter’s monitoring app to see how much you actually export during the charge window.

Will Solar Export Charges Spread to Other States?

The AEMC’s 2021 rule permits every Australian network to introduce export pricing. Queensland and Victoria have blocked it through state government policy, but those positions could change with future governments or regulatory reviews.

The economic pressure is real. Australia has 4.3 million homes with rooftop solar (Clean Energy Council, 2025). Midday generation now exceeds demand regularly, pushing wholesale prices negative in SA, Victoria and Queensland. Networks need investment to handle two-way power flows, and export pricing is one tool to fund that.

The AEMC’s basic export guarantee protects a free export level until approximately 2031. After that, the framework allows networks to set export charges without a mandatory free tier. Whether that happens depends on the pace of battery adoption, the success of dynamic export programs, and state government policy.

For now, the best hedge against future export charges is a battery. A household that stores its own solar and consumes it in the evening is insulated from any network charge on exports. That same battery earns revenue through avoided grid purchases, VPP programs and the growing evening export premiums. For the latest on VPP options, see our best VPP plans comparison.

Frequently Asked Questions

Do all Australian networks charge for solar exports?

No. As of August 2026, only three NSW networks have introduced export charges: Ausgrid at 1.2 cents per kWh between 10am and 3pm, Essential Energy above 7.5 kWh a day, and Endeavour Energy above about 8 kWh a day during 10am to 2pm. Queensland and Victoria have ruled out export charges. WA, SA, ACT and Tasmania have not introduced them.

How much do solar export charges cost per year?

For most solar households on Ausgrid’s network, the annual impact is around $2.50 to $25 depending on system size and export volume. The charge only applies to power exported between 10am and 3pm. Households that self-consume most of their solar or have a battery storing midday surplus will pay close to nothing in export charges.

Can I opt out of solar export charges?

On Endeavour Energy’s network, you can opt out until 2029 for new installations. On Ausgrid, the charges became mandatory for most time-of-use customers from July 2025. Essential Energy applies them to smart meter customers. The AEMC requires all networks to offer a basic export level free of charge for 10 years from 2021.

Is the sun tax the same as a lower feed-in tariff?

No. Feed-in tariffs are payments from your retailer for exported solar. Export charges are separate fees from your network operator (DNSP) for using the grid to export. You can receive a feed-in tariff and pay an export charge at the same time. The net payment is your feed-in rate minus the export charge during the applicable window.

Will a battery help me avoid solar export charges?

Yes. A battery stores surplus solar during the middle of the day instead of exporting it. You then use that stored energy in the evening when grid rates are highest. This avoids export charges entirely during the 10am to 3pm window and earns you 25 to 35 cents per kWh in avoided grid purchases rather than 3 to 7 cents from a feed-in tariff.