The purpose of the free zone is to provide a pre-consented area with a grid connection where renewable energy technology can be more easily deployed and tested without incurring all the normal regulatory processes.

Projects developed within the ZLT will be exempt from paying grid access tariffs and other charges related to grid contributions. However, they may be subject to a fee established by the Portuguese Energy Regulatory Authority (ERSE) to partially cover the grid operators’ investment and operation of the connection infrastructure necessary for the operation of the zone.