Energy & environment · Data Act

Energy & environment — Data Act: opening meter data

The Data Act grants users access to data generated by smart meters and connected energy equipment, and enables sharing with third parties. This is a lever for competition and innovation in energy services. This guide details access and sharing obligations and by-design architecture requirements.

DPO / CISO team — Data Comply One Updated on 15 June 2026

In brief

  • Regulation: Data Act.
  • Manufacturers and suppliers of smart meters and connected equipment, as well as providers of associated data services, are in scope.
  • Making data accessible.
  • Enable sharing.
  • Design 'by design'.
  • Penalties set by each Member State, effective and dissuasive.

Regulatory deadlines

The key dates of this regulation.

January 2024

Entry into force

In force

September 2025

Application

In force

What is the Data Act about?

The Data Act governs access to data from connected products. Smart meters and energy-related devices are included; their data feeds efficiency, management, and benchmarking services.

It complements the GDPR, which also protects personal consumption data.

Is the "Energy & environment" sector concerned?

Manufacturers and suppliers of connected meters and equipment, as well as providers of associated data services, are in scope. Users and designated third parties benefit from access rights.

The competitive challenge is significant: opening up data drives third-party energy services.

Detailed obligations

Make data accessible

Allow the user to access data generated by the meter and equipment.

Enable sharing

Make data available to designated third parties (alternative provider, efficiency service).

Design by design

Integrate data access from the design stage of equipment.

Ban abusive clauses

Reviewing energy services contracts.

Inform

Documenting the data generated and the access modalities.

Sanctions & risks

Penalties set by each Member State, effective and dissuasive. Beyond that, data lock-in deprives the user of a right and hinders third-party energy services.

Application timeline

  • 1Entry into force. Early 2024.
  • 2Application. Majority of obligations applicable from 12 September 2025.

Common mistakes in the sector

  • 1Locked-down data. Prevent access to meter data.
  • 2Sharing refused. Blocking a designated third-party service.
  • 3Abusive clauses. Retaining unbalanced clauses.
  • 4GDPR confusion. Believing GDPR is sufficient.

Practical case

A meter operator was restricting access to detailed consumption data. A customer designates an energy efficiency service. The operator puts in place compliant access and sharing, and revises its contracts, opening up the services ecosystem.

Compliance roadmap

  1. 1

    Inventory. Map data from meters and equipment.

  2. 2

    Equip. Implement access and sharing mechanisms.

  3. 3

    Design. Embedding access from the design stage.

  4. 4

    Revise. Adapt service contracts.

  5. 5

    Inform. Document access modalities.

Frequently asked questions

Yes: the Data Act guarantees them access and the ability to share it.

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