Defined term
Photovoltaic temperature coefficient
A photovoltaic temperature coefficient describes how a specified module electrical characteristic changes with cell temperature relative to stated reference conditions.
Also known as PV power temperature coefficient
measurement · Concept code GS-CONCEPT-038 · Last verified August 20, 2026
Definition and boundaries
Definition
A photovoltaic temperature coefficient describes how a specified module electrical characteristic changes with cell temperature relative to stated reference conditions.
Definition claim verification: Verified August 20, 2026
In plain language
When comparing Photovoltaic temperature coefficient, keep the unit, time period, measurement boundary, and underlying assumptions the same on both sides.
What it is not
It is not ambient temperature and it is not a fixed annual loss percentage.
Decision context
Why it matters
The relevant coefficient, sign, reference condition, module technology, and modeled cell temperature must be identified before applying it to production.
Decision-context claim verification: Verified August 20, 2026
Information boundary
This page provides general educational context, not a site design, production guarantee, utility determination, contract interpretation, legal opinion, tax conclusion, or individualized financial advice. Verify property, equipment, utility, jurisdiction, program, and agreement details before acting.
Concept relationships
Affects
- Annual solar productionPublished conceptPhotovoltaic temperature coefficient can affect how Annual solar production is evaluated
Primary sources
- Sandia National Laboratories: Photovoltaic Array Performance Model
Revision SAND2004-3535 · August 1, 2004 · Source event as of August 1, 2004 · Ontology accessed August 20, 2026 · Ontology verified August 20, 2026
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