A practical best solar panels checklist includes the panel’s efficiency, power output, product and performance warranties, degradation rate and temperature coefficient. Check that the model appears on the Clean Energy Council’s approved products list if you intend to claim small-scale technology certificates, and confirm the warranty terms are suitable for Australia. Consider your roof space, orientation, shading, local climate and future electricity needs rather than choosing on efficiency alone. Ask a licensed installer for a system design and compare written quotes, including installation, monitoring, after-sales support and any exclusions.