Environmental control

We explain which greenhouse gases are present in the electrical infrastructure, the measures we apply to reduce their emissions, and how we are moving towards more climate-friendly technologies.

Our commitment to fighting climate change

At e‑distribución, we are committed to reducing greenhouse gas (GHG) emissions and fighting climate change.

Certain gases necessary for the safe operation of equipment may be present in the electrical infrastructure.

Which gases are present in the electricity grid

In our activities, we mainly use:

  • Electrical insulating gases, especially fluorinated gases, in the grid's switchgear.
  • Refrigerant gases, in very small quantities, mainly in HVAC equipment for large facilities.

The most significant gas in the first group is sulphur hexafluoride (SF₆), which has a high global warming potential.

How we control SF₆ emissions

To minimise SF₆ emissions and leaks throughout the equipment's lifecycle, e‑distribución has participated since 2015, through AELEC, in the Voluntary Agreement for the Limitation of Sulphur Hexafluoride Emissions, promoted by the Spanish Climate Change Office.

This agreement helps to:

  • Improve emission control.
  • Contribute data to the National Greenhouse Gas Emission Inventory.
  • Promote the use of alternative technologies to SF₆.

What commitments the voluntary agreement promotes

The agreement encourages good practices among the various stakeholders:

  • Equipment manufacturers
    To design equipment with fewer leaks and share initiatives to reduce emissions.
  • Electricity companies
    To apply best practices in operation and maintenance to minimise the risk of leaks.
  • Waste managers
    To ensure the correct recovery, transport, and treatment of SF₆ to encourage its reuse.

In addition, the agreement drives research, development, and innovation (R&D) projects.

Moving towards alternative technologies

At e‑distribución, we actively participate in pilot projects and trials of new technologies that will allow us to progressively phase out SF₆.

This work aligns with European regulations, which foresee a gradual ban on the use of SF₆ in new infrastructure.

Institutional and regulatory framework (additional information)

  • Voluntary Agreement for the Limitation of Sulphur Hexafluoride Emissions.
  • Spanish Climate Change Office.
  • European F-Gas Regulation.