Defined term
Bifacial gain
NREL documents bifacial-model inputs for rear-side irradiance and module bifaciality in SAM.
measurement · Concept code GS-CONCEPT-126 · 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 documents bifacial-model inputs for rear-side irradiance and module bifaciality in SAM.
Verified August 28, 2026
Why it matters
A bifacial-model result depends on rear-side irradiance and bifaciality inputs and is not a site-specific gain promise.
Verified August 28, 2026
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Primary topic: Performance
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Primary sources
- National Renewable Energy Laboratory: SAM Help 2025-04-16, Detailed Photovoltaic Model — Bifaciality and rear-side irradiance model inputs
Revision SAM Help 2025-04-16 · Source event as of April 16, 2025 · Ontology accessed August 28, 2026 · Ontology verified August 28, 2026