A commercial solar guide should cover your business’s electricity usage, roof condition, available space, peak demand and likely export limits before recommending a system size. Ask a Clean Energy Council-accredited installer for designs showing expected generation, self-consumption, battery options, connection requirements and maintenance arrangements. Potential incentives may include Small-scale Technology Certificates for eligible systems up to 100 kW, while larger projects may involve Large-scale Generation Certificates, but eligibility and value depend on the project and current rules. Compare retailer rates, finance, warranties and the installer’s assumptions, and check tax and depreciation treatment with your accountant.