The month contract's mid on the last curve date before the month began, or a set number of days earlier if you choose.

How are on- and off-peak hours defined?

By the market's own on-peak hours and holidays, the same blocks the forward curves use.

Which locations are covered?

Locations in your subscription whose day-ahead history EOX loads: trading hubs, load zones and many nodal locations.

No. It compares past forward marks with past settlements, for your own analysis.

Tools › Forward vs. realized

Forward marks against day-ahead settlements

See how EOX power forwards have priced against what the market then settled at: each past month's on- and off-peak mark beside the day-ahead average over the same hours, outright or as a basis between two locations.

What goes in, what comes out

Your choices

The market and location, as named in your power curves
How many past months to compare, up to three years
How far ahead the mark is taken: the prompt mark, or a set number of days before the month began
Optionally a second location, to compare the basis between the two

The results, month by month

The on- and off-peak forward mark and the curve date it was taken
The day-ahead average over the same hours, and the number of hours
The difference, in dollars and as a percentage of the mark
For each block, the average difference and how many months settled above the mark

Marks follow your subscription: month-end subscribers see month-end marks, and trials see marks from their start date.

Example

Month	Block	Marked	Forward mark	Day-ahead	Difference
2026-06	On-peak	2026-05-29	48.20	51.65	3.45
2026-06	Off-peak	2026-05-29	27.10	25.90	−1.20
2026-07	On-peak	2026-06-30	62.40	58.85	−3.55

Values are illustrative.

Use it from

Python

from eoxlive import EOX
eox = EOX("YOUR_KEY")
eox.forward_vs_realized("ISO1", "HUB1", months=24)      # one row per month and block, as a DataFrame

REST

curl -H "X-API-Key: YOUR_KEY" \
  "https://api.eoxlive.com/v1/analytics/forward-vs-realized?iso=ISO1&market=HUB1&months=24"

Or in the browser, on the Valuation page, signed in with your EOX account.

Questions

Which mark is used?: The month contract's mid on the last curve date before the month began, or a set number of days earlier if you choose.
How are on- and off-peak hours defined?: By the market's own on-peak hours and holidays, the same blocks the forward curves use.
Which locations are covered?: Locations in your subscription whose day-ahead history EOX loads: trading hubs, load zones and many nodal locations.
Is this a forecast?: No. It compares past forward marks with past settlements, for your own analysis.

Included with your subscription. The tools use the curves, vols and correlations your subscription already covers, under the same entitlements, and are never charged for separately. Results are for information only; values shown on this page are illustrative.

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