Homeowners should review their electricity use, roof condition, shading, available roof space and whether the system will suit their future energy needs. Compare quotes from multiple accredited installers, checking the panel and inverter warranties, expected generation, installation work and after-sales support. Federal or state incentives may reduce the upfront cost, but eligibility and value depend on current rules and individual circumstances. Check official information on energy.gov.au and use an accredited installer who can assess your property before you commit.