New Hampshire (NH)

Solar panel hotspots: what they are and why they matter in New Hampshire

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 New Hampshire'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

3.8 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 New Hampshire solar system

Use our free Solar Loss Checker to estimate how much energy your system in New Hampshire 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 →

Same issue in other states

→Solar Panel Hotspots Explained in Massachusetts →Solar Panel Hotspots Explained in New York →Solar Panel Hotspots Explained in Connecticut →Solar Panel Hotspots Explained in Minnesota

Other issues in New Hampshire

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