NYCA (New York Control Area)

The New York Control Area is the footprint NYISO balances: all of New York State, divided into 11 load zones lettered A (West, around Buffalo) through K (Long Island). Statewide load — the NYCA total — is the sum of the 11 zones, and the hour it peaks each summer sets ICAP tags. Zone prices differ because transmission between upstate generation and downstate load congests; Zone J (New York City) routinely clears at multiples of the western zones.

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