Mid-May heat lifted NYISO ancillary service prices, with regulation peaking at $51/MWh on May 17

Daily average real-time ancillary service clearing prices in NYISO ($/MWh)
10 Min Spinning Reserves
10 Min Non-Spinning Reserves
Thirty Minute Reserves
Regulation
Source: NYISO, Modo Energy
Note: Regulation prices are set NYCA-wide. Reserve prices vary by zone based on locational requirements.
MODOENERGY