Choosing a solar EPC (Engineering, Procurement, Construction) company is one of the most important decisions in any solar project, because the quality of design and installation directly affects how much energy your system generates over its lifetime.
Start by asking how much of the work is handled in-house versus subcontracted — an in-house team generally means better accountability and faster response times. Ask to see examples of completed projects similar in size and roof type to yours, and request a clear, itemized quotation rather than a single lump-sum number.
Pay attention to the equipment being proposed: panel and inverter brands, warranty terms, and expected system performance should all be spelled out before you sign anything. Finally, ask about post-installation support — a good EPC partner stays available for maintenance, monitoring and troubleshooting long after commissioning, not just until the invoice is paid.
Taking the time to compare EPC companies on these points — not just on price — will pay off in system performance and peace of mind for years to come.