All guides
Every guide we have published, newest first. Each one lists its sources and is reviewed by a human editor.
Solar basics
East-west solar panels vs south-facing: which suits your roof?
East-west panels make less power in a year but spread it across the day. See when that trade is worth it, with charts and a worked example.
Home batteriesAU · GB
How big a home battery do you need? A worked example
Size a home battery to the electricity you use after sunset, not your daily total. A step-by-step example with the numbers shown.