The May 1 start of the 2026-27 summer Capability Period lifted the NYC reference capacity price to $6.6/kW-month, widening its premium over upstate

Reference Capacity Price for a 4-hour battery ($/kW-month)
NYC
Long Island
Rest of State
Source: NYISO, Modo Energy
Note: RCP calculated as (UCAP × CAF) / 4. May 2026 uses the 2026-2027 Capability Year CAFs (CHPE-Out); earlier months use their respective Capability Year values.
MODOENERGY