6.6kW Solar system: Cost output and savings
The output of a 6.6kW system
Solar panel output varies by seasonThe output of a 6.6kW system varies by season. If you live in Perth, you receive a proportionally higher amount of sunshine in winter than Sydney residents get.
Cost of a 6.6kW system
Cost advantage compared to 5kW systemsThere are cost advantages to selecting a 6.6kW system over a 5kW solar system; we list the benefits below:
- You likely only need a 5kW inverter
- You receive the rebate on the additional 1.6kW worth of panels
- There is only a slight increase in labour time to install a larger system
6.6KW System with a 5kW inverterTypically, a 6.6kW system comes with a 5kW inverter, due to panel efficiency losses and because some network distributors do not allow you to install an inverter greater than 5kWs in size. So, you do not need to pay any more for an inverter. You still receive your rebate on the additional 1.6kW of solar panels. The cost of installing a 6.6kW system vs a 5kW system is negligible. For the extra system capacity, you are only paying more for the solar panels and some small additional installation costs.
Avoid cheap 6.6kW systemsWe strongly recommend you avoid buying a cheap solar panel system. You will see advertisements that show a much lower cost for a 6.6kW system than what we publish; this is because we show prices for good quality, reliable systems that will last 25 years.
Buy with confidence