The Australian Energy Market Commission (AEMC) has unveiled a significant reform proposal this week, aiming to modernise the nation’s electricity grid and drastically reduce the curtailment of rooftop solar systems. The proposed changes, announced on April 27, 2026, are designed to enhance long-term planning and data reporting, directly addressing the growing challenge of excess solar power being unable to be exported to the grid due to network capacity limitations.

Curtailment has become an increasingly common issue for the more than 4.3 million Australian households equipped with rooftop solar, which collectively boasted over 28 GW of capacity by the end of 2025 and now contribute more than 14 per cent of the nation’s electricity supply. This rapid uptake has transformed the grid from a traditional one-way system to a more complex, two-way network, placing immense pressure on local infrastructure, particularly the low-voltage networks in residential areas.

A 20-Year Vision for a Smarter Grid

At the core of the AEMC’s proposal is the replacement of the existing ‘distribution annual planning report’ with a more comprehensive ‘distribution network plan’. This new plan will be published every five years, offering a long-term outlook of up to 20 years, supplemented by shorter, annual updates from network operators.

AEMC Chair Anna Collyer emphasised the reform’s primary goal: to improve visibility across the electricity network. “With detailed visibility of where solar, batteries and electric vehicles are emerging, distributed network service providers and investors can plan ahead through targeted upgrades or non-network solutions,” Collyer stated. This enhanced data collection and transparency are expected to enable network providers to make more informed and targeted investment decisions, ultimately reducing solar export restrictions and leading to more efficient investments that could flow through to lower power bills for consumers.

“With detailed visibility of where solar, batteries and electric vehicles are emerging, distributed network service providers and investors can plan ahead through targeted upgrades or non-network solutions. That means fewer constraints, less curtailment of rooftop solar, and ultimately more efficient investment decisions that flow onto everyone’s power bills.” – Anna Collyer, AEMC Chair.

The reform is also expected to support better planning for the integration of community batteries and electric vehicle (EV) charging infrastructure, further bolstering Australia’s clean energy transition.

The Problem of Curtailment: Why It Matters to You

Solar curtailment occurs when grid operators are forced to limit the amount of electricity that rooftop solar systems can export to the network. This can happen during periods of high solar generation and low electricity demand, where the local grid simply lacks the capacity to absorb the excess power without risking instability. For homeowners, this means lost opportunities to earn feed-in tariff credits for their exported energy, effectively reducing the financial benefits of their solar investment.

While solar feed-in tariffs in Australia have generally declined over the past decade – with many retailers offering rates as low as 3 to 7 cents per kWh in states like NSW and Victoria – the primary financial benefit of solar has shifted towards self-consumption. However, reducing curtailment remains crucial for maximising the overall value of solar systems and ensuring grid stability as renewable energy penetration grows.

What This Means for Australian Households

For Australian homeowners, the proposed AEMC reforms signal a proactive approach to a pressing issue. If successful, it could mean:

  • Increased Export Opportunities: Fewer instances where your solar system’s export is limited, allowing you to maximise feed-in tariff earnings and reduce reliance on grid power during non-solar hours.
  • Improved Grid Reliability: A more robust and intelligently managed grid better equipped to handle the influx of distributed renewable energy, potentially leading to fewer blackouts and more stable power supply.
  • Enhanced Battery Integration: Better planning for distributed energy resources (DERs) like home batteries, making them more effective at storing excess solar for later use and reducing demand on the grid during peak times. Choosing the right battery and understanding financing options is becoming increasingly important. For more on this, see our guide on Best Solar Panel & Home Battery Financing Options in Australia 2026: Loans, PPAs & Green Mortgages Explained.
  • Future-Proofing Your Investment: As solar technology continues to advance, ensuring the grid can keep pace is vital for the long-term viability and return on investment of your solar installation. Understanding the role of your inverter in this dynamic environment is also critical. Find out when to consider an upgrade in our article: When to Replace Your Solar Inverter in Australia 2026: Costs, Benefits, and Battery Compatibility.

Next Steps and Public Feedback

The AEMC is currently seeking feedback from stakeholders on its proposal, with a final decision anticipated later in 2026. This public consultation period provides an opportunity for industry bodies, energy providers, and consumers to contribute to the future design of Australia’s electricity network. The reform represents a necessary evolution in grid management, moving away from a reactive approach to a long-term, data-driven strategy essential for Australia’s ambitious renewable energy targets.

As Australia continues its transition to a cleaner energy future, such foundational reforms are critical to ensure that the success of rooftop solar doesn’t become its own bottleneck. With warmer months approaching, maximising solar self-consumption and efficient grid export will be key strategies for managing electricity bills. You can find more tips in our guide: How to Cut Your Electricity Bill This Winter in Australia 2026: Strategies After Federal Rebates End.