Residential solar systems are typically sized between 1–10 kW and are optimised for a household's daily consumption pattern and available rooftop area.
Commercial systems serve businesses with higher daytime loads — offices, retail stores, and hospitality properties — and are sized closer to the sanctioned electrical load and roof capacity available.
Approval processes also differ: commercial connections often involve additional documentation with the local electricity distribution company, along with structural and safety assessments appropriate to the building type.
Financially, commercial systems usually see faster paybacks because businesses consume more power during the day — exactly when solar generates the most.
Regardless of scale, the fundamentals remain the same: a proper site survey, correctly sized components, and quality installation are what determine long-term performance.
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