New York City is sweltering under an intense heat wave, with temperatures and humidity levels soaring to dangerous heights. In response, Mayor Zohran Mamdani and utility provider Con Edison are urging residents to conserve electricity during peak hours to prevent strain on the power grid. This appeal comes as a massive heat wave spreads across the United States, with the National Weather Service (NWS) warning of extreme conditions from the Plains to the East Coast.
The heat wave, which is expected to persist through the Fourth of July holiday, has prompted city officials to activate emergency heat-response measures. With millions relying on air conditioning to cope with the oppressive conditions, utilities across the Northeast are closely monitoring electricity demand to ensure the grid remains stable.
Mayor Mamdani’s Energy Conservation Appeal
In a post on X, Mayor mamdani requested that New Yorkers, including businesses, set their thermostats to 78 degrees to help conserve electricity. He also encouraged residents to turn off unused electronics and lights and to unplug appliances when not in use. The city is doing its part by maintaining the 78-degree rule in its buildings, dimming lights during peak demand, and powering down non-essential equipment.
However, Mamdani’s call for energy conservation has sparked backlash online. Critics, including former reality television star Spencer Pratt and social media personality Dave Portnoy, have mocked the mayor’s request, with some labeling it as communist or socialist. Despite the criticism, former adviser to President Barack Obama, David Axelrod, defended Mamdani, stating that the mayor’s appeal is a responsible measure to ensure the energy grid holds and air conditioning units keep running.
Expanded Emergency Measures to Protect New Yorkers
To protect residents from the extreme heat, Mayor Mamdani announced expanded emergency measures as part of the city’s Heat Emergency Plan. These measures include opening additional cooling centers, extending outdoor pool hours, increasing outreach to vulnerable residents, and encouraging businesses to set thermostats to 78 degrees to reduce strain on the power grid.
The mayor urged residents to make a heat plan, check on neighbors, especially seniors, and use available cooling resources. He emphasized that air conditioning is the best protection against extreme heat and encouraged those without it at home to know where they can go to stay cool. The city has also activated a Code Red, providing shelter to all homeless individuals who need a place to stay cool.
Cooling Centers and Extended Pool Hours
Cooling centers are open across the city, with some locations remaining open from noon to midnight during the holiday weekend. Additionally, Brooklyn’s intermediate and Olympic-sized pools will be open until 8:30 p.m. to help residents cool down in the evenings. Public beaches will retain their normal hours, with lifeguards on duty from 10 a.m. to 6 p.m..
Residents are encouraged to check the city’s Cool Options map to find their nearest cooling center or call 311 for more information. The city has also ramped up canvassing and outreach efforts to ensure vulnerable individuals receive the necessary support during the heat wave.
Heat Wave Forecast and Con Edison’s Response
The Weather Channel forecasts that the holiday weekend will be extremely hot in New York City, with Central Park potentially experiencing its first triple-digit high in almost 14 years. The heat is expected to begin relieving on Sunday, with more relief on Monday and Tuesday as the heat dome moves on.
Con Edison has activated its Emergency Response Center and mobilized crews to prepare for the extreme heat and potential thunderstorms. The utility warned that high temperatures and humidity could strain the system and lead to scattered outages. Con Edison urged customers to reduce electricity use between 2 p.m. and 10 p.m. when demand is typically highest, and to postpone charging electric vehicles until later in the evening.
The company also advised residents to keep blinds and curtains closed, limit air-conditioning use where possible, and delay using major appliances. While Times Square’s massive illuminated billboards will not be shut off, the city is working with the Times Square Alliance to request sign operators to lower energy consumption by reducing brightness.

