6.6kW Solar System - Residential Solar

6.6kW Residential Solar System

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6.6kW Solar System - Australia's #1 Residential Choice

The 6.6kW solar system is the undisputed king of Australian residential solar installations. Specifically engineered to maximize federal STC government rebate incentives while matching the 5kW grid export limit set by major network distributors, this system produces an average of 24kWh to 28kWh of clean electricity per day—easily covering the needs of a typical 3 to 4-bedroom home.

Technical System Specifications

Our premium 6.6kW package combines Tier-1 Monocrystalline N-Type PERC panels with industry-leading single-phase smart inverters. High cell conversion efficiency ensures reliable performance even during overcast days or high heat conditions.

6.6kW System Overview & Performance Specs

System Capacity: 6.66kW (16 x 415W Tier-1 Panels)

Inverter Size: 5.0kW Single-Phase Hybrid Inverter

Average Daily Output: 24kWh – 28kWh / day

Estimated Annual Savings: $1,200 – $1,800 AUD / year

Roof Area Required: Approx. 32m² – 38m²

Ideal For: 3 - 4 Bed Homes ($400–$800 Quarterly Bills)

Warranty Coverage: 25-Yr Panel, 10-Yr Inverter & Workmanship

Why Homeowners Choose The 6.6kW Package

Maximum Federal STC Rebate Eligibility
Generates 24 - 28 kWh Daily Yield
Rapid 2.5 to 3 Year Return On Investment
25-Year Linear Panel Performance Warranty

Battery Ready (Hybrid Inverter Included)
Real-Time Smartphone App Monitoring
CEC Certified Professional Installation
10-Year Master Workmanship Guarantee

🔋 Add Battery Storage Anytime

All Sun Stone Solar 6.6kW installations come standard with hybrid-ready inverters. You can integrate a lithium battery storage system (such as Tesla Powerwall, Sungrow, or Alpha ESS) now or down the line without changing your inverter setup.

Residential Systems

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