Defined term
Photovoltaic module mismatch loss
NREL SAM identifies module-voltage mismatch as an electrical loss input on the detailed-PV model Losses page.
measurement · Concept code GS-CONCEPT-129 · Last verified August 28, 2026
Evidence through 2025-04-16 · 0 sources have no source-event date
Content modified 2026-08-28
Definition and decision context
Definition
NREL SAM identifies module-voltage mismatch as an electrical loss input on the detailed-PV model Losses page.
Verified August 28, 2026
Why it matters
SAM treats module mismatch loss as a model input, not as a measured loss for every installed photovoltaic system.
Verified August 28, 2026
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Learning navigation
Primary topic: Performance
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Primary sources
- National Renewable Energy Laboratory: SAM Help 2025-04-16, Detailed Photovoltaic Model — Losses page: module mismatch loss
Revision SAM Help 2025-04-16 · Source event as of April 16, 2025 · Ontology accessed August 28, 2026 · Ontology verified August 28, 2026