Defined term
Preventive maintenance
Preventive maintenance is work scheduled in advance to prevent failures or reduce their likelihood.
technology · Concept code GS-CONCEPT-219 · Last verified August 28, 2026
Evidence through 2018-12-21 · 0 sources have no source-event date
Content modified 2026-08-28
Definition and decision context
Definition
Preventive maintenance is work scheduled in advance to prevent failures or reduce their likelihood.
Verified August 28, 2026
Why it matters
Preventive-maintenance cadence depends on equipment, site conditions, and maintenance planning rather than one universal schedule.
Verified August 28, 2026
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Learning navigation
Primary topic: Maintenance
Broader topic
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Primary sources
- National Renewable Energy Laboratory: NREL/TP-7A40-73822, PV and Energy Storage O&M Best Practices, 3rd ed., § 6.6, p. 53
Revision NREL/TP-7A40-73822, 3rd edition · Source event as of December 21, 2018 · Ontology accessed August 28, 2026 · Ontology verified August 28, 2026
- National Renewable Energy Laboratory: NREL/TP-7A40-73822, PV and Energy Storage O&M Best Practices, 3rd ed., § 6.6, p. 53
Revision NREL/TP-7A40-73822, 3rd edition · Source event as of December 21, 2018 · Ontology accessed August 28, 2026 · Ontology verified August 28, 2026