Live ISO-NE dashboard: capacity tag peak risk and load forecast
ISO-NEtagtoday's load vs. current peak · cross the white line and today is the new season peak
0%
CLEAR
the chance today sets the season's peak
- Forecast max
- 18.0 GW
- 1th peak
- 25.3 GW
- Margin
- -7.28 GW
- Temp anomaly
- 0°F
- Est. curtailment
- −0.0 GW
- p (raw → final)
- 0% → 0%
Calibration and model ⓘ
Tight window opens in
—:—:—
5:00 PM ET to 7:00 PM ET
Hour by hour, Aug 17
12:00 PM
0.0%
1:00 PM
0.0%
2:00 PM
0.0%
3:00 PM
0.0%
4:00 PM
0.0%
5:00 PM
0.0%
6:00 PM
0.0%
7:00 PM
0.0%
Tap an hour for the why
The hour to beat
provisional, from observed hourly load- 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
| Peaks caught | Days flagged | False alerts | |
|---|---|---|---|
| ▲ WattMarkets | 3 of 3 | 6 | 6h |
| Alert every hot day | 3 of 3 | 18 | 30h |
The API
key issued at sign-inEverything 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