Annual survey on industrial energy consumption 2026 

EACEI 2026

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Paru le :Paru le09/10/2026
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Traitement statistique

Frequency of data collection

Annual

Data collection

EACEI 2026 is collected via the internet and possibly by post (at the request of the establishment).

Data collection period

The collection period extends from January to May 2026.

Collection mode

  • By post mail
  • By Internet

Survey unit

Local unit (of an enterprise)

Sampling method

The sampling frame is the Sirus directory (system of identification to directory of statistical units).

The sampling method is a stratified plan by the nomenclature Naf 2025, workforce bands, and region.

Allocations are optimised on the Nomenclature x workforce bands, and on energy consumption, taking into account the average dispersion per stratum over the last 3 years. The allowances are exhaustive above the threshold of 250 employees, big consumers of energy and for strata of less than 10 units.

Sample size

The sample includes approximately 8 000 establishments.

Data validation

The controls carried out to ensure the quality of the statistical results are as follows:

  • Checks during the collection phase: checks on internal coherence and temporal coherence in the form of an alert at the time of data entry

  • Follow-ups during the collection phase: exhaustive reminders by mail on non-respondents, priority telephone reminders on large non-respondents

  • Data cleaning to ensure consistency of answers within each questionnaire

  • Calculation of precision indicators.