Defined term
Solar array azimuth
Solar array azimuth is the compass direction toward which the array surface faces, expressed under a stated angular convention.
Also known as PV azimuth
measurement · Concept code GS-CONCEPT-035 · Last verified August 20, 2026
Definition and boundaries
Definition
Solar array azimuth is the compass direction toward which the array surface faces, expressed under a stated angular convention.
Definition claim verification: Verified August 20, 2026
In plain language
When comparing Solar array azimuth, keep the unit, time period, measurement boundary, and underlying assumptions the same on both sides.
What it is not
It is not array tilt and a single azimuth cannot represent multiple roof planes with different orientations.
Decision context
Why it matters
Production estimates must use the convention required by the selected model and the actual array orientation for each distinct plane.
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 conceptSolar array azimuth can affect how Annual solar production is evaluated
Primary sources
- U.S. Department of Energy: Solar Photovoltaic System Design Basics
Source event date not provided · Ontology accessed August 7, 2026 · Ontology verified August 7, 2026
- National Laboratory of the Rockies: PVWatts Version 8 API
Revision PVWatts API 8.0 · website 8.5.2 · Source event as of September 25, 2025 · Ontology accessed August 20, 2026 · Ontology verified August 20, 2026
What to do next
- Open the related GeoStellar guideNext step
- Return to the Solar Energy WikiNext step
- Estimate a residential solar systemNext step