Defined term
Solar production guarantee
A solar production guarantee is a contract promise that compares defined measured or calculated system production with a stated schedule and provides specified remedies when its conditions are met.
Also known as solar energy guarantee
economics · Concept code GS-CONCEPT-095 · Last verified August 20, 2026
Evidence through 2018-12-01 · 1 source has no source-event date
Content modified 2026-08-20
Definition and boundaries
Definition
A solar production guarantee is a contract promise that compares defined measured or calculated system production with a stated schedule and provides specified remedies when its conditions are met.
Applicable jurisdiction: US; contract terms vary
Definition claim verification: Verified August 20, 2026
In plain language
Use Solar production guarantee only after the cash-flow perspective, timing, contract structure, included costs, and omitted items are made explicit.
What it is not
It is not a production estimate, module performance warranty, bill-savings guarantee, or guarantee of system uptime unless the contract says so.
Decision context
Why it matters
Review meter source, weather adjustment, availability, shading changes, curtailment, maintenance duties, exclusions, thresholds, annual or cumulative test, remedy, cap, and claim timing.
Applicable jurisdiction: US; contract terms vary
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.
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Learning navigation
Primary topic: Maintenance
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Primary sources
- California Public Utilities Commission: Solar Consumer Protection Guide
Revision Guide Version 4 (published 2025; exact publication date unavailable) · Source event date not provided · Ontology accessed August 20, 2026 · Ontology verified August 20, 2026
- National Laboratory of the Rockies: Best Practices for Operation and Maintenance of Photovoltaic and Energy Storage Systems, 3rd Edition
Revision NREL/TP-7A40-73822 · December 2018 · Source event as of December 1, 2018 · Ontology accessed August 20, 2026 · Ontology verified August 20, 2026