Public benchmark snapshot by territory.

Review the baseline and Gramm side by side for each active market. If one of these territories matters to your workflow, request the full benchmark package.

Lower MAPE means lower error

The public table uses MAPE. Lower values mean the forecast is closer to realized load.

Each row is a named market

Every result is tied to a specific territory and baseline, not a blended portfolio average.

The full pack goes deeper

A market-specific benchmark includes issuance timing, evaluation dates, sample size, and horizon detail.

The public table is a first pass

Use it to decide whether a market is worth testing side by side against your current feed.

Territory
Baseline MAPE
Gramm MAPE
Error Reduction
California
CAISO · PG&E, SCE, SDG&E
4.8%
2.9%
39.6%
Texas
ERCOT · Oncor, CenterPoint, AEP Texas
5.1%
3.4%
33.3%
Mid-Atlantic & Midwest
PJM · PECO, ComEd, Dominion
3.9%
2.6%
33.3%
Central U.S.
MISO · Entergy, Xcel, DTE
4.3%
2.9%
32.6%
New York
NYISO · Con Edison, National Grid
4.1%
2.8%
31.7%
New England
ISO-NE · Eversource, National Grid
3.7%
2.5%
32.4%
Great Plains
SPP · AEP, OGE, Evergy
4.6%
3.1%
32.6%

Methodology notes

Lower MAPE indicates lower forecast error relative to realized demand.

This page shows territory-level results only. A full benchmark adds dates, sample size, issuance timing, and horizon detail.

If a market matters to your desk or operating team, request the full benchmark package for that workflow.

Need the full backtest pack for your market?

We will send the dates, issuance timing, sample size, and horizon definitions that match the market and workflow you want to test.