Data Sources
This page explains how Eurospotting approaches electricity market data: what the current release uses, how source values are kept distinct from comparison values, and how missing or revised data is treated.
Primary source
The current public release primarily uses day-ahead electricity price data from the ENTSO-E Transparency Platform where that data is available for the relevant bidding zone and delivery date. The Transparency Platform collects market information submitted by data providers such as transmission system operators, power exchanges or other qualified parties.
Eurospotting does not operate the underlying electricity markets and does not control when source data is published, revised, delayed or withdrawn. If the source platform does not provide data for a zone and date, Eurospotting treats that as missing data rather than filling the gap with an estimate.
Market data currently shown
The current release focuses on day-ahead electricity prices. These prices are displayed by bidding zone and delivery date, using the time resolution available in the source data. Depending on the market area and date, the source series may use PT15M, PT30M or PT60M intervals.
Eurospotting preserves these intervals separately. A 15-minute source series remains a 15-minute series, and an hourly source series remains hourly. The displayed daily profile is not upsampled or downsampled to make different zones appear artificially uniform.
Source and comparison layers
The selected-zone detail keeps the reported source price, unit and currency visible where they are available. This matters because not every market area is reported under identical source conditions, and some historical or non-euro values need additional context before they can be compared visually with EUR/MWh zones.
For the map and other cross-zone views, Eurospotting may calculate a comparable EUR/MWh value. This is a comparison layer used for visualization; it does not replace the original source value. The source price remains the reference for what was reported by the underlying data source.
Missing, partial and revised data
Electricity market data can be delayed, incomplete, revised or unavailable. A missing value on Eurospotting does not necessarily mean that a market did not operate or that no price existed. It means that the application does not currently have a valid source value for that zone, date and interval.
When source data is missing or partial, Eurospotting keeps the gap visible. Filling missing intervals with repeated, interpolated or synthetic values would create a misleading view of the market and make it harder to distinguish reported data from assumptions.
Independence and attribution
Eurospotting is independent and is not affiliated with ENTSO-E, any transmission system operator, power exchange, NEMO, regulator or market operator unless explicitly stated. Names of data sources, markets or regions are used to describe the origin and context of the data.
Contact
If you believe a source attribution, market area, missing-data state or displayed value should be reviewed, contact Eurospotting at contact@eurospotting.com.

