1. For Business Owners: The 100% Maximum Demand Rule Previously under NEM:

Commercial solar systems were capped at around 85% of Maximum Demand (MD) – the highest level of electricity your premises draws from the grid at any given time. This conservative limit often left untapped savings potential.

Under ATAP:
You can now install solar systems up to 100% of your Maximum Demand.

This change gives businesses the ability to:

• Generate more solar energy
• Offset a larger portion of their electricity bills
• Improve long-term return on investment

2. For Homeowners: More Capacity for Modern Living Previously under NEM:

Three-phase residential properties were typically limited to 10kW installations.

Under ATAP:
Three-phases homes can now install up up to 15kW.

This upgrade is especially beneficial if you:

• Run a larger household with multiple air-conditioning units
• Work from home with higher daytime usage
• Plan to charge an electric vehicle at home

To understand ATAP, it helps to understand why quotas existed in the first place.

When too much solar energy is fed into the grid without proper control, it can lead to grid instability. NEM 3.0’s quota system was a simple way to manage this risk. While effective, it also created artificial scarcity, slowing down adoption and frustrating many potential users.

Solar ATAP introduces a more advanced approach. Instead of limiting participation, it focuses on managing how systems are designed and connected.

If you’ve previously explored solar but were held back by quotas or system limitations, this is the time to reassess.

However, the removal of quotas doesn’t mean unlimited installation — it means smarter system design is now critical.

Your ideal system size will depend on:

• Your actual electricity usage
• Your property’s technical capacity
• Grid compatibility requirements

With ATAP, getting the sizing right matters more than ever. An oversized or undersized system could impact your savings – especially with the new way solar credits are calculated.