Solar System Pay Back Periods

Ok, so you’ve noticed that solar is popular at the moment and you’re hearing from your friends that it’s a great investment.

What you need to work out is:

  • Whether or not it’s a good investment in your circumstances,
  • How long it will take to pay for itself before you start seeing a benefit financially,
  • How the returns on the initial investment compare to putting your money into shares or even just putting it into the bank at 4%.
  • If you’re paying for the system on finance, you want to be sure that the return on investment is quite a bit more than what you’re paying in interest or else what’s the point?

We’ve recently launched our new Solar Savings Calculator which helps you determine the payback and financial returns from investing in solar plus it will also estimate what your bills will be after installing your system. Check it out and play with the variables.

Estimated Daily Production

City 1.0kW system 1.5kW system 2.0kW system 3.0kW system 4.0kW system
Adelaide 4.2kWh 6.3kWh 8.4kWh 12.6kWh 16.8kWh
Alice Springs 5.0kWh 7.5kWh 10.0kWh 15.0kWh 20.0kWh
Brisbane 4.2kWh 6.3kWh 8.4kWh 12.6kWh 16.8kWh
Cairns 4.2kWh 6.3kWh 8.4kWh 12.6kWh 16.8kWh
Canberra 4.3kWh 6.45kWh 8.6kWh 12.9kWh 17.2kWh
Darwin 4.4kWh 6.6kWh 8.8kWh 13.2kWh 17.6kWh
Hobart 3.5kWh 5.25kWh 7.0kWh 10.5kWh 14.0kWh
Melbourne 3.6kWh 5.4kWh 7.2kWh 10.8kWh 14.4kWh
Perth 4.4 kWh 6.6 kWh 8.8 kWh 13.2 kWh 17.6 kWh
Sydney 3.9 kWh 5.85 kWh 7.8 kWh 11.7 kWh 15.6 kWh
Data Source: PV-GC spreadsheet based on the CEC GC Design Guideline

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