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Commercial vs Residential Solar: Key Differences for EPCs

8 Sep 2026 · 2 min read

Commercial and residential solar use the same core technology, but the projects differ in almost every other way.

What changes

"Residential solar sells on savings. Commercial solar sells on balance sheet impact."
ResidentialCommercial
Typical size2–10 kW50 kW+

Larger projects need tighter sizing accuracy — see how Solar 3D Design scales up to 5 MW layouts.

Related reading

How Many Solar Panels Does Your Roof Actually Need? → Ground-Mounted vs Rooftop Solar: Which Fits Your Project? → Solar ROI: How to Calculate Payback Period →

From rooftop to megawatt scale.

One design tool for residential and commercial projects.