South Carolina (SC)

Solar panel hotspots: what they are and why they matter in South Carolina

Hotspots are localised areas of overheating on a solar panel, typically caused by cell damage, micro-cracks, or persistent shading. They are the leading cause of accelerated panel degradation and are best detected via thermal imaging. Here's what you need to know.

How South Carolina's climate affects this issue

Hot, humid conditions increase hotspot risk through thermal stress, and moisture can accelerate cell degradation around existing hotspots.

Climate

hot humid

Sun hours

5.1 hrs/day

Soiling risk

moderate

Solar adoption

moderate

Related issues

Cell hotspots

Localised overheating in individual cells caused by micro-cracks, shading, or manufacturing defects. Best detected via thermal imaging.

Typical loss: 5–20%

Check your South Carolina solar system

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

Check my system

Based on conservative solar performance modelling and published degradation data

NRELIEA-PVPSSunSpecPVsyst+ published research

Updated April 2026 · Structured performance modelling

How we calculate →

Same issue in other states

→Solar Panel Hotspots Explained in Texas →Solar Panel Hotspots Explained in Florida →Solar Panel Hotspots Explained in Georgia →Solar Panel Hotspots Explained in Hawaii

Other issues in South Carolina

→Why Are My Solar Panels Underperforming? in South Carolina →Is Your Solar Inverter Losing Efficiency? in South Carolina →How Dirt and Soiling Reduce Solar Panel Output in South Carolina →When Should You Get a Solar Thermal Inspection? in South Carolina