Net Zero Compare
France Mandatory Energy Audit for Large Companies (DDADUE)

France Mandatory Energy Audit for Large Companies (DDADUE): France’s Mandatory Energy Audit: Four-Year Compliance Obligation for Large Companies

Maílis Carrilho
Written by Maílis Carrilho
Updated on December 2nd, 2025

Summary

France requires large companies to conduct an energy audit every four years, covering most of their energy use across buildings, processes and transport. Audits must be performed by accredited professionals and identify efficiency opportunities. Companies may comply instead by implementing an ISO 50001 energy management system. SMEs are exempt. Documentation must be retained and accessible to authorities. Non-compliance may result in administrative penalties or affect access to public support. The scheme supports France’s and the EU’s long-term energy efficiency objectives.

Details

Jurisdictions
  • France
Exemptions

The mandatory energy audit rules are fully binding for all companies meeting the French “large enterprise” thresholds.

Criteria:

Conduct a four-year energy audit.

Cover at least 65–80 percent of total energy consumption.

Use accredited or qualified auditors.

Submit information when required by authorities.

Maintain audit files and evidence.

Exceptions:

SMEs and micro-enterprises are out of scope.

ISO 50001-certified companies may be exempt from separate audits.

Some subsidiaries can be covered under group-level audits.

Deep dive

1 min read
Updated Dec 2, 2025

📩 Stay ahead of climate regulation and reporting shifts

Regulatory updates, reporting standards, and new climate software — distilled into one concise weekly brief for decision-makers.

Thanks for signing up. Please check your inbox to confirm your subscription.

Practical updates. Once per week.


What’s Required

Large companies must conduct an energy audit every four years, covering buildings, industrial processes and transport. The audit must identify energy-saving opportunities and be performed by qualified, independent auditors. Documentation must be retained and made available to authorities. Companies may comply through an accredited ISO 50001 energy management system instead of audits.

Important Deadlines

  • An energy audit is required every four years.

  • ISO 50001 certification can replace the recurring audit.

Current Status

  • Fully operational since 2015.

  • Aligned with the EU Energy Efficiency Directive.

  • Continued tightening expected with the revised Directive.

Penalties for Non-Compliance

  • Administrative fines.

  • Potential impact on eligibility for public support schemes.

  • Requests for corrective measures or documentation.

Examples of Known Violations

As of November 2025, there are no widely publicised penalties; authorities mainly monitor deadlines and compliance declarations.

Resources


Maílis Carrilho
Added by:
Maílis Carrilho
Sustainability Research Analyst
Maílis Carrilho is a Sustainability Research Analyst (Intern) at Net Zero Compare, contributing research and analysis on climate tech, carbon policies, and sustainable solutions. She supports the team in developing fact-based content and insights to help companies and readers navigate the evolving sustainability landscape.
Our principle

Cut through the green tape

We don't push agendas. At Net Zero Compare, we cut through the hype and fear to deliver the straightforward facts you need for making informed decisions on green products and services. Whether motivated by compliance, customer demands, or a real passion for the environment, you’re welcome here. We provide reliable information. Why you seek it is not our concern.

Added on Dec 1, 2025 by Maílis Carrilho · Updated on Dec 2, 2025