Makai Ocean Engineering connects world's largest OTEC plant to U.S. grid

Makai’s plant will generate 100 kW of sustainable, continuous electricity – enough to power 120 homes in Hawaii each year.

The world’s largest operational Ocean Thermal Energy Conversion (OTEC) power plant is complete.

Makai Ocean Engineering’s OTEC power plant was dedicated Aug. 21 at the Natural Energy Laboratory of Hawaii Authority (NELHA).Makai’s plant will generate 100 kW of sustainable, continuous electricity – enough to power 120 homes in Hawaii each year.

Makai’s plant will generate 100 kW of sustainable, continuous electricity – enough to power 120 homes in Hawaii each year.  

Using temperature differences in the ocean’s cold deep water and warm surface water, the OTEC plant generates renewable electricity that is available 24 hours a day year round.

This is the first true closed-cycle OTEC plant connected to the U.S. electrical grid.

The project was funded by the Office of Naval Research through the Hawaii Natural Energy Institute.  The infrastructure was funded by Naval Facilities Engineering Command.

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