Defined term
Voltage support
Voltage support uses generator reactive-power production to maintain transmission-system voltages within required ranges.
grid · Concept code GS-CONCEPT-215 · Last verified August 28, 2026
Evidence through 2024-01-17 · 1 source has no source-event date
Content modified 2026-08-28
Definition and decision context
Definition
Voltage support uses generator reactive-power production to maintain transmission-system voltages within required ranges.
Applicable jurisdiction: US
Verified August 28, 2026
Why it matters
FERC places voltage support in ancillary-service context and does not prescribe device settings or market qualification.
Applicable jurisdiction: US
Verified August 28, 2026
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Primary topic: Grid
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Primary sources
- Federal Energy Regulatory Commission: FERC Energy Markets Primer, January 17, 2024, pp. 57–58 — Voltage support
Revision FERC Energy Markets Primer (January 2024) · Source event as of January 17, 2024 · Ontology accessed August 28, 2026 · Ontology verified August 28, 2026
- Federal Energy Regulatory Commission: FERC OPP Ancillary Services, Voltage Support and Reactive power, PDF p. 1
Revision current FERC OPP Ancillary Services PDF; event date unavailable · Source event date unavailable · Ontology accessed August 28, 2026 · Ontology verified August 28, 2026