New York’s electric system has the capacity to meet demand for electricity and the necessary operating reserves during extreme cold-weather conditions through the 2017-2018 winter season. That’s according to the New York Independent System Operator (NYISO), the nonprofit that operates New York state’s power grid. NYISO anticipates a peak demand of 24,365 megawatts (MW) for […]
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New York’s electric system has the capacity to meet demand for electricity and the necessary operating reserves during extreme cold-weather conditions through the 2017-2018 winter season. That’s according to the New York Independent System Operator (NYISO), the nonprofit that operates New York state’s power grid.
NYISO anticipates a peak demand of 24,365 megawatts (MW) for this winter season. Last winter, peak demand reached 24,164 MW when weather was milder than the 10-year and 20-year averages.
New York’s record winter peak was set in 2014, during polar-vortex conditions that pushed demand to 25,738 MW, NYISO said in a news release issued Nov. 30.
Peak demand is a measurement of the average total electric demand by consumers for a one-hour period. One megawatt of electricity can serve between 800 and 1,000 homes.
The winter peak forecast is based on average winter-weather conditions, with composite statewide temperatures of 15 degrees to 16 degrees Fahrenheit. If extreme weather produces colder conditions, with temperatures in the 5 to 6 degree range, peak demand across the state could increase to about 25,989 MW.
Total capacity resources, which include generation, imports and demand response, are expected to total 44,557 MW this winter season. Installed generation capacity amounts to 41,454 MW.
Net external capacity purchases of 2,311 MW also have been secured for the winter period, NYISO said. Projected demand response resources, which enlist consumers to reduce electricity use during peak conditions, equal 792 MW.
The electric system requires surplus power supplies to guarantee that sufficient electricity is available in the event of unanticipated power-plant outages, transmission outages, or unexpected increases in power consumption.
New York’s grid operators maintain 2,620 MW of operating reserves daily, which means additional generation resources are scheduled above the amount needed to meet the projected demand for electricity on that day, NYISO said.