Carlton: 7.6kW solar, power bill cut ~78%

The brief

This Carlton home had rising power bills and plenty of unshaded roof. They wanted to cut their bills as far as possible with solar alone, while keeping the option to add a battery later.

What we installed

We designed a 7.6kW system using 16 high-output 475W JA Solar panels across the roof, run by two Hoymiles hybrid inverters. The system is sized to cover the home's daytime use and export the surplus, and the inverters leave the door open to add storage down the track.

The result

• Annual bill: $1,932 → $424 — about 78% lower
• Annual savings: ≈ $1,508 per year
• Annual production: ≈ 10,511 kWh
• Feed-in income: ≈ $684 per year from exported solar
• Grid imports: cut by ~43% — about 1,963 kWh less each year

Figures are from this project's design proposal; actual results vary by household usage and tariff.