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Googled this:

>As of March 2025, the cost of residential solar energy in Australia averaged just AUD $0.90 (USD $0.59) per watt—less than a quarter of the U.S. average.

It's generally attributed to consistent sensible regulation which has created a competitive market and reduced any time wasting paperwork.

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In my research this past summer considering solar in the USA, it was difficult for me to find just new with-warranty solar panels in low quantities (I only want 5kW to 10kW of panels) for a DIY install for less than $0.30/W including delivery and sales tax. To hit $0.59/W total cost is mind boggling to me.

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