light induced degradation

Why New Solar Panels Lose Power: LID vs LeTID Explained

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LID vs LeTID in solar panels showing the difference between light induced degradation and elevated temperature induced degradation in photovoltaic cells.

Noticed an early drop in solar output? An engineer breaks down LID vs LeTID degradation, affected cell types, and what manufacturers test for. LID and LeTID are two specific, well-documented degradation mechanisms that cause a measurable output drop in certain solar cells shortly after installation, before performance stabilizes. Neither is a manufacturing defect — they’re … Read more

N-Type vs P-Type Solar Panels: Honest Comparison

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N-Type vs P-Type solar panels installed on a residential rooftop.

N-type vs P-type solar panels explained by an engineer — real efficiency and degradation differences, and which one actually matters for buyers. N-type and P-type refer to how a silicon wafer is chemically doped, and it’s become a genuinely important spec-sheet distinction over the past few years as N-type has moved from a niche premium … Read more