We moved to the South coast of Sydney got several quotes for solar and battery. The best value for money was provided by Locky from Coastal Sparky. He installed the Sigen stackable batteries with a 25kw DC car charger in our garage . We charge our EV in less than an hour for most trips. Our solar works a treat and Amber electricity has us in credit after only 2 months. Getting the right installer and right system is the key. Other quotes didn’t even explain DC charging which needs battery near the car.