A useful best solar panels guide should compare efficiency, product and performance warranties, degradation rates, temperature performance, salt-mist resistance and the manufacturer’s Australian support. It should also explain that the most suitable panel depends on your roof space, orientation, shading, local climate, budget and electricity use, rather than simply choosing the highest efficiency rating. Check that products and installers meet applicable Australian standards, and compare the complete system price and estimated output in writing. An accredited installer can assess your property, while current rebate information is available from energy.gov.au.