ICAP tag

An ICAP (Installed Capacity) tag is a New York facility's demand measured during the one hour of the summer when statewide NYCA load hits its annual maximum. Suppliers must buy capacity for every megawatt of tag their customers carry, at auction prices that differ sharply by locality — New York City clears far above the rest of the state — and those costs ride the bill for twelve months. Unlike multi-peak programs, there is no partial credit: the season is one hour. WattMarkets publishes a daily call on whether today is likely to set that hour, and grades every call in public.

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