Minnesota (MN)
Solar panel hotspots: what they are and why they matter in Minnesota
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 Minnesota's climate affects this issue
Cold climates have lower hotspot risk overall, but freeze-thaw cycles can worsen existing micro-cracks that lead to hotspots.
Climate
cold
Sun hours
4.3 hrs/day
Soiling risk
low
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 Minnesota solar system
Use our free Solar Loss Checker to estimate how much energy your system in Minnesota may be losing.
Check my systemBased on conservative solar performance modelling and published degradation data
Updated April 2026 · Structured performance modelling
How we calculate →