Stories

Data-driven stories from the US power grid — events like demand peaks and winter storms, told with an interactive map and the numbers behind them.

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BriefingNYISOJul 4, 2026

New York's Grid Meets the Heat

One of the most intense heat waves in more than a decade drove New York demand to within 8 percent of its all-time record. The grid operator forecast the peak almost exactly, the New York City price spiked to nearly $1,847 a megawatt-hour, and the city's utility cut voltage to 400,000 customers to keep the lights on. A briefing from inside the event.