Adoption of new grid extension installations
On this page, we explain when it is mandatory for new grid extension installations to be adopted, what steps you must follow to carry out the adoption process, and what costs may apply, in accordance with current regulations.
- Executed by a third party via a certified installer, and
- Designed to supply more than one consumer, must be adopted by the distribution company and become part of the local distribution grid.
- Access and connection request,
- Acceptance of the preliminary proposal,
- Access and connection permit, and
- Execution of the client's network extension project and assignment management.
- Technical conformity of the design specifications.
- Documentation review and completion of works.
- Technical inspection of the works (supervision).
- Signing of the adoption agreement and legalisation or change of ownership, if applicable.
- Commissioning of the installations.
When is it necessary for installations to be adopted?
Regulations stipulate that new grid extension installations:
Stages prior to the adoption of installations
The adoption process begins following an access and connection application, wherein the applicant commissions the new grid extension from a certified installer.
Preliminary steps

Necessary procedures for execution and adoption
Once the preliminary proposal has been accepted, and if the applicant chooses to execute the works for subsequent adoption, the following procedures must be completed:

Guide for the transfer of installations
Transfer of installations
Guide for the management
Here you will find all the relevant information for the transfer of new grid extension installations.
Frequently asked questions