Defined term

Photovoltaic performance ratio

Photovoltaic performance ratio compares delivered system energy with a reference yield based on in-plane irradiation and installed capacity over the same period.

Also known as PV performance ratio

measurement · Concept code GS-CONCEPT-041 · Last verified August 20, 2026

Evidence through 2023-12-17 · 0 sources have no source-event date

Content modified 2026-08-20

Definition and boundaries

Definition

Photovoltaic performance ratio compares delivered system energy with a reference yield based on in-plane irradiation and installed capacity over the same period.

Definition claim verification: Verified August 20, 2026

In plain language

When comparing Photovoltaic performance ratio, keep the unit, time period, measurement boundary, and underlying assumptions the same on both sides.

What it is not

It is not module efficiency, capacity factor, or a direct measure of financial return.

Decision context

Why it matters

The meter boundary, irradiation source, capacity basis, availability, period, and calculation convention must remain consistent when comparing values.

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.

Selector-derived public graph

Primary topic: Performance

Broader topic

No public concepts recorded.

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Photovoltaic system lossPublished concept

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