Solar Panel Installation Costs: 2025 Guide

Price Benchmarks for 2025

Solar pricing can be opaque. To help you navigate quotes, we've compiled average price ranges for quality installations in Australia for late 2025. These prices include the federal STC rebate deduction.

6.6kW System (Standard Residential)

• Budget (Tier 2 panels): $4,500 - $5,500. Expect generic inverters and shorter workmanship warranties.
• Standard (Good quality Tier 1): $5,500 - $7,000. Typically includes brands like Trina, Jinko, Sungrow, or GoodWe.
• Premium (High efficiency/Micro-inverters): $8,000 - $10,000+. Includes REC, SunPower, Enphase, or Fronius.

10kW System (Future-Proof)

• Standard: $8,000 - $10,500
• Premium: $11,000 - $14,000+

Battery Add-Ons

Adding a battery significantly increases the upfront cost, though rebates help.

• Small (5-6kWh): $5,000 - $7,000 installed.
• Medium (10-13kWh): $9,000 - $13,000 installed (e.g., Tesla Powerwall 3).

City-by-City Variance

Installation costs vary due to labor rates, competition, and logistics:

• Sydney & Brisbane: Generally competitive, often on the lower end of the ranges above.
• Melbourne & Adelaide: Slightly higher due to stricter installation regulations and safety requirements.
• Perth: Highly competitive market, often sees some of the lowest prices in the country.
• Hobart & Darwin: Expect to pay 15-25% more due to freight and lower installer density.

Hidden Costs to Watch For

When getting your 3 quotes, ask if these are included:

• Switchboard Upgrades: Old ceramic fuses or asbestos boards may need replacing ($500 - $1,500).
• Double Storey / Difficult Roof: Extra labor charges for scaffolding or steep pitch roofs ($300 - $800).
• Smart Monitoring: Consumption monitoring meters (to see your home's usage, not just solar production) often cost extra ($300 - $600) but are highly recommended.