Enphase · inverter

Enphase — partial shading

Shading affects Enphase systems the same way it affects any solar equipment. New tree growth, nearby construction, or seasonal changes in sun angle can introduce shading that reduces output significantly.

Partial shading details

New tree growth, nearby construction, or seasonal shading patterns reducing output on part of the array.

Typical loss: 5–30%Detection: visualLikelihood: moderate

Self-check tip:

Check panels at different times of day. New tree growth or structures may cast shadows that didn't exist when the system was installed.

Brand lifespan

25 years

Warranty

25 years

Check your Enphase system

Use our free Solar Loss Checker to estimate how much energy your Enphase system may be losing.

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Based on conservative solar performance modelling and published degradation data

NRELIEA-PVPSSunSpecPVsyst+ published research

Updated April 2026 · Structured performance modelling

How we calculate →

Other Enphase issues

→Enphase — Natural panel degradation →Enphase — Cell hotspots →Enphase — Panel soiling →Enphase — Inverter efficiency loss

Partial shading — other brands

→Tesla Solar — Partial shading →SunPower — Partial shading →SolarEdge — Partial shading →LG Solar — Partial shading