How does shade affect solar panels?

Quick answer

The practical explanation

Shade reduces the sunlight reaching the array and therefore reduces production. The impact depends on when the shade occurs, how much of the array it covers, and how the panels and inverter architecture are configured.

What to know

Three points to keep in mind

• Shade should be evaluated across seasons, not at only one time of day.
• Trees, chimneys, roof sections, and neighboring buildings can all matter.
• Equipment choices can reduce some mismatch effects but cannot create missing sunlight.

For your home

A site-specific answer still matters

Solar results and service needs depend on the roof, equipment, shade, household electricity use, utility requirements, and the condition of the existing system. Use this guide as a starting point, then have the property and equipment evaluated before making a major decision.