TL;DR: Less regulations in Australia lead to solar systems being 1/3 the price of US solar systems. However, US solar systems tend to perform for 20+ years, whereas a significant number of Australian systems have "sharply" degraded performance after 5 years.
Checking the articles sources, apparently lots of installed panels in Australia stop working after ~5 years and the remaining functional panels decline in performance 12%.
This is an interesting trade off. Would I prefer a solar system that is 1/3 the cost but 1/4 the life in the US? I don't know. I think the average time spend in one home is around 7 years (don't quote me, I could be very wrong here), so it seems like each homeowner could install their own system and be fine. Cheaper systems also mean that more people could install them.
Checking the articles sources, apparently lots of installed panels in Australia stop working after ~5 years and the remaining functional panels decline in performance 12%.
This is an interesting trade off. Would I prefer a solar system that is 1/3 the cost but 1/4 the life in the US? I don't know. I think the average time spend in one home is around 7 years (don't quote me, I could be very wrong here), so it seems like each homeowner could install their own system and be fine. Cheaper systems also mean that more people could install them.
Not a policy expert, don't trust my thoughts.