On Sunday, November 23, 2025, the ISO New England issued a Power Caution due to an unexpected decline in power generation during peak demand, causing a temporary loss of generation capacity that threatened to unbalance the region's grid. However, system operators swiftly activated standard protocols to maintain stability, and the caution was lifted by 7:00 p.m., although an abnormal alert remained active until 9:00 p.m. The incident is likely to trigger the activation of ISO-NE's Forward Capacity Market Pay-for-Performance mechanisms, with the organization currently analyzing market data that will be made public once available.