Start by searching for commercial solar installers servicing your area and compare several written proposals, including system size, expected output, equipment, warranties, grid connection requirements and total costs. Check whether the business uses appropriately licensed electricians and, where relevant, Clean Energy Council accreditation, then look for experience with projects similar to your building and electricity usage. Ask for recent commercial references and confirm who will handle approvals, monitoring, maintenance and safety documentation. A qualified energy consultant or your local network operator can help review technical details before you sign, as final suitability and connection approval depend on your site and circumstances.