Caribbean Transmission Secures U.S. Presidential Permit for Hostos Energy Interconnection Between the Dominican Republic and Puerto Rico
Read the full article here.
Caribbean Transmission Development Company (CTDC) today announced it has received the Presidential Permit from the U.S. Department of Energy for Project Hostos, a transformative 500MW high-voltage direct current (HVDC) submarine interconnection cable that will deliver firm, dispatchable power from the Dominican Republic to Puerto Rico beginning in 2031.
The Presidential Permit, required for all cross-border energy transmission facilities under Executive Order 10485, represents a critical federal validation that unlocks the path for significant private capital deployment for Caribbean energy infrastructure. The permit authorizes CTDC to construct, operate, and maintain transmission facilities crossing the international maritime boundary in the Mona Passage, following a comprehensive interagency review process coordinated by the U.S. Department of Energy.
Project Hostos is structured as a 100% privately financed initiative. The total project cost of $2.5 billion is allocated across key components:
500MW combined-cycle power plant
90 km of overhead 345kv AC transmission line
150 km of subsea 320kv HVDC transmission line
6 km cable stretching from the port of Mayagüez in western Puerto Rico, underground, rising to interconnect with the electric grid at the Mayagüez Substation
AC-to-DC Converter Stations
Source: Geographies of Cooperation Atlas