Solar panel inspection in Montana
Montana (MT)
Montana is in a cold climate zone with an average of 4.6 peak sun hours per day. Soiling risk is low, and solar adoption is low. Here's what MT solar owners should watch for.
Climate zone
cold
Avg sun hours
4.6 hrs/day
Soiling risk
low
Solar adoption
low
Common issues in Montana
Natural panel degradation
All solar panels lose efficiency over time at roughly 0.5–0.8% per year. Accelerated in extreme heat or poorly manufactured panels.
Typical loss: 3–15%
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Based on conservative solar performance modelling and published degradation data
Updated April 2026 · Structured performance modelling
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