50kW Solar System: Compare Prices & Returns
Solar Choice has been tracking the cost of commercial solar systems in Australia since 2014, publishing average figures each month in
Across Australia the most recent Commercial Solar Price Index (May 2025) shows turnkey 50 kW installations ranging AU $46,400 – AU $57,170 depending on city, with a national mean of AU $51,420 (≈ $0.95 /W). Sydney records the lowest current outlay (AU $46,400) while Perth is highest (AU $57,170).
On average, a 50kW solar system will cost around $49,068, including government rebates and other incentives. The true range depends on your location and the brand of solar panels and inverter you go with. The installation cost is usually included in this price range, as a certified installer can only do it. What's the payback period on 50kW solar?
Most 50kW solar systems in Australia have an average payback period of 4 years. However, depending on your location and energy consumption patterns, the system may pay back in as short as 3 years, or extend to around 5 years. The more energy you consume from your 50kW solar system, the faster it will pay itself back.
Our 50KW solar package provides steady and reliable power for every part of your business, with tier 1 solar panels in an efficient configuration and a solid 50KW solar inverter. We pride ourselves in our strong reputation as the leading provider of commercial solar in Australia.
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