Dominican Republic's ETED unveils largest Caribbean storage project and $2.1 bn Hostos inter‑island link

The Empresa de Transmisión Eléctrica Dominicana (ETED) announced a series of upgrades to the national grid. From July 8‑10 the utility will carry out preventive maintenance and replace deteriorated structures on 69 kV lines across the provinces of Sánchez Ramírez, Duarte, San Juan de la Maguana and Santo Domingo Oeste, causing temporary power interruptions for the listed communities.

ETED also disclosed that it will contract 600 MW of two‑hour energy‑storage capacity by August, the largest storage installation in the Caribbean. The project is privately funded, with the assets remaining under ETED ownership after the company’s conversion to a 100 % state‑owned public‑stock corporation. The utility highlighted parallel modernisation efforts, including a real‑time operation simulator, a new data centre and expanded training programmes for engineers.

Separately, the privately financed Hostos project – a 200‑km HVDC submarine cable linking the Dominican Republic with Puerto Rico – was presented at Energyear Caribe 2026. The $2.1 bn interconnection will deliver 700 MW of power from a dedicated new generation plant, operate independently of the Dominican grid, and is expected to create more than 5,000 construction jobs. By replacing older diesel and bunker‑C plants in Puerto Rico, the link aims to cut approximately 3.8 million tonnes of CO₂ emissions per year and strengthen regional energy resilience.