Let’s say you want to install some solar panels on your home. For the average homeowner, that will set you back around $16,000, according to Andrew Birch, former CEO of the solar installation company Sungevity. In Australia, you would pay about $7,000. And it’s not just Australia where it’s cheaper. Birch says that the US is an outlier when it comes to how much solar installation costs the regular consumer. Why? Birch explains.