Maine's day-ahead TB4 spread ran $946/MW-day below the pool on July 2 and $686 below on July 3
Maine TB4 spread minus the seven-zone average on days at 90F or hotter ($/MW-day)
Source: ISO-NE, NOAA, Modo Energy
Note: All 13 June-September 2026 days with a Boston high at or above 90F, each NECEC-online. Three more 90F days fell on May 17-20, before summer. The spread tab shows Maine's and the pool's TB4 levels.
MODOENERGY