Flexibility Reserve

Addressing variability and uncertainty on longer timescales than operating reserves and regulation service.

Definition by NYISO

Source: ¹ (p37)

Flexibility reserves are an emerging concept for addressing variability and uncertainty on longer timescales than operating reserves and regulation service. The Ancillary Services Market secures flexibility services from suppliers to maintain balance in response to changing conditions on the electrical grid.

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Last modified: 2025-10-29

Related: system-flexibility · flexibility-options

← Flexibility Options · Flowgate →

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1. NYISO (2024). Power Trends 2024. https://www.nyiso.com/documents/20142/2223020/2024-Power-Trends.pdf/31ec9a11-21f2-0b47-677d-f4a498a32978?t=1717677687961 ↩