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December 5, 2025

capacity shortfall

ISO-NE
Unexpected Generation Loss Triggers Capacity Deficiency in ISO-NE
ISO-NE declared a capacity deficiency after an unexpected loss of generation left the region short of its operating reserve requirements.
MISO
MISO, OMS Report Stronger Possibility for Spare Capacity in Annual RA Survey

The Organization of MISO States and MISO are confident the footprint will be resource-sufficient in the 2026/27 planning year but said anything from an 11.4-GW surplus to a 14.1-GW deficit could be in store by the 2030/31 planning year.

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NEPOOL Participants Committee Briefs: Aug. 1, 2024
Despite above-average temperatures, the ISO-NE energy market value was down slightly in July 2024 relative to July 2023, ISO-NE COO Vamsi Chadalavada said at the NEPOOL Participants Committee meeting.
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MISO Leadership Issues Urgent Call for In-Service Dates
MISO’s system is at the mercy of faster interconnections of new resources and retirement delays, executives said in a quarterly address to the board and stakeholders.
OMS and MISO
OMS-MISO RA Survey: Potential 14-GW Capacity Deficit by Summer 2029
A relatively low turnout of constructed capacity in recent years could deepen a potential 2.7-GW capacity deficit in summer 2025 to more than 14 GW by summer 2029, MISO and OMS revealed in a five-year projection.
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OMS RA Summit: Scarcity to Persist, Load Growth Debatable
There’s no going back on waning capacity in MISO, panelists agreed at a gathering of state regulators, though predictions of escalating load growth have some skeptical.
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MISO Members Doubt Severity of Long-term RA Alarm Bells
Multiple MISO members appeared skeptical at their quarterly meetings that the RTO is destined to face capacity shortfalls before the turn of the decade.
ISO-NE
ISO-NE Study Highlights the Importance of OSW, Nuclear, Stored Fuel
ISO-NE presented the final stage of its Operational Impact of Extreme Weather Events study to stakeholders at the NEPOOL Reliability Committee on Nov. 14.
NYISO
NYISO Anticipates Increased Load in Western, Central NY
NYISO did not identify any new near-term reliability issues in its third-quarter STAR, but it does anticipate significant load increases in western and central New York that could warrant more attention.
OMS and MISO
OMS-MISO RA Survey Signals Potential for 9-GW Shortfall by 2028
MISO and the Organization of MISO States’ resource adequacy survey warned that a more than 9-GW shortfall could loom by the decade’s end, though it painted an adequate supply picture for the upcoming year.

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