Every house is unique when it comes to available on-site power and existing infrastructure. If your house falls into the category of a standard installation, it costs $990 inc GST for a single phase standard installation or $1,218 inc GST for a three phase standard installation. If the house does not fall under a standard installation category, we’ll provide you with a quote for the additional work called “variations”. This cost can range from $100-$1000+. We’ll review photos of your home and mains to work this out.