PSW has been exceptional from the first time I enquired about solar, recommendations about different options and equipment, pricing, installation and after-sales service. They have conducted themselves in a very professional manner and supplied an outstanding system at the best price in Perth even though the system was installed 130km south from their workshop. They installed on the specified date and organised every aspect of the install and approval. I would recommend PSW to anyone thinking about solar, I shopped around and the competition just didn't cut the mustard. I couldn't be happier. Thumbs up PSW.