Live ISO-NE dashboard: capacity tag peak risk and load forecast

Today's Load vs. Current Peakcross the white line and today is the new season peak

ActualForecastSeason peak
0%
CLEAR
the chance today ends in the season's top one

No call today. New England's annual peak lands on summer business-day afternoons, so this program excludes weekends and holidays and ineligible days carry no probability. The next business-day call publishes by 10 AM ET.

The hour to beat

provisional, from observed hourly load
  1. cp1Thu, Jul 225.3 GW6:00 PM ET

One hour decides the season: your facility's demand during the ISO-NE annual peak sets its capacity tag for the whole capability year. Any hotter business day through September takes the slot.

The record

every call
Peaks caughtDays flaggedFalse alerts
▲ WattMarkets3 of 366h
Alert every hot day3 of 31830h

The free API

key issued at sign-in

Everything on this site is in the API. Build on it, no scraping required.

curl -H "X-Api-Key: wm_..." \
  "https://wattmarkets.com/v1/predictions/daily?program=isone-tag-2026"
Docs and live playground